diff --git a/pyminer/features/preprocess/preprocess.py b/pyminer/features/preprocess/preprocess.py
index b126c9b44f01fcb9614b2f1351f8ae8f7cf28575..d84403628a6119976c8e5d3988fa0df25fa6b8a7 100644
--- a/pyminer/features/preprocess/preprocess.py
+++ b/pyminer/features/preprocess/preprocess.py
@@ -12,6 +12,9 @@ from pandas.api.types import is_string_dtype
 # 导入PyQt5模块
 from PyQt5.Qt import *
 
+# 导入基础类模块
+from pyminer.ui.base.widgets.generalwidgets.window import DataProcessDialog
+
 # 导入数据相关操作模块
 from pyminer.ui.data.data_filter import Ui_Form as DataFilter_Ui_Form  # 数据筛选
 from pyminer.ui.data.data_role import Ui_Form as DataRole_Ui_Form  # 数据角色
@@ -33,12 +36,13 @@ from pyminer.ui.data.data_column_encode import Ui_Form as DataColumnEncode_Ui_Fo
 from pyminer.ui.data.data_column_name import Ui_Form as DataColumnName_Ui_Form
 from pyminer.ui.data.data_repace import Ui_Form as DataReplace_Ui_Form
 from pyminer.share.exceptionhandler import exception_handler
+
 # 定义日志输出格式
 logging.basicConfig(format="%(asctime)s %(name)s:%(levelname)s:%(message)s", datefmt="%Y-%m-%d %H:%M:%S",
                     level=logging.INFO)
 
 
-class DataInfoForm(QDialog, DataInfo_Ui_Form):
+class DataInfoForm(DataProcessDialog, DataInfo_Ui_Form):
     """
     打开"数据-数据信息"
     """
@@ -47,7 +51,7 @@ class DataInfoForm(QDialog, DataInfo_Ui_Form):
         super().__init__(parent)
         self.setupUi(self)
         self.center()
-        self.all_dataset = dict()
+        self.data_host = None
         self.all_dataset_name = list()
 
         self.current_dataset_name = ''  # 当前数据集名称
@@ -64,27 +68,6 @@ class DataInfoForm(QDialog, DataInfo_Ui_Form):
         self.lineEdit_dataset_name.textChanged.connect(self.change_dataset_info)
 
     #  ================================自定义槽函数=========================
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def info_init(self):
         if any(self.info):
@@ -118,21 +101,25 @@ class DataInfoForm(QDialog, DataInfo_Ui_Form):
 
     def change_dataset_info(self):
         # 修改当前数据集的数据信息
-        self.lineEdit_path.setText(self.all_dataset.get(self.current_dataset_name + ".path"))
-        self.lineEdit_row.setText(self.all_dataset.get(self.current_dataset_name + ".row"))
-        self.lineEdit_col.setText(self.all_dataset.get(self.current_dataset_name + ".col"))
-        self.lineEdit_file_size.setText(self.all_dataset.get(self.current_dataset_name + ".file_size"))
-        self.lineEdit_memory_usage.setText(
-            self.all_dataset.get(self.current_dataset_name + ".memory_usage"))
-        self.lineEdit_create_time.setText(
-            self.all_dataset.get(self.current_dataset_name + ".create_time"))
-        self.lineEdit_update_time.setText(
-            self.all_dataset.get(self.current_dataset_name + ".update_time"))
-        self.info = self.all_dataset.get(self.current_dataset_name + ".info")
-        self.info_init()
-
-
-class DataFilterForm(QWidget, DataFilter_Ui_Form):
+        if self.data_host is not None:
+            info_dic = self.data_host.get_info(self.current_dataset_name)
+
+            self.lineEdit_path.setText(info_dic['path'])  # self.data_manager.get(self.current_dataset_name + ".path"))
+            self.lineEdit_row.setText(info_dic['row'])  # self.data_manager.get(self.current_dataset_name + ".row"))
+            self.lineEdit_col.setText(info_dic['col'])  # self.data_manager.get(self.current_dataset_name + ".col"))
+            self.lineEdit_file_size.setText(
+                info_dic['file_size'])  # self.data_manager.get(self.current_dataset_name + ".file_size"))
+            self.lineEdit_memory_usage.setText(info_dic['memory_usage'])  #
+            # self.data_manager.get(self.current_dataset_name + ".memory_usage"))
+            self.lineEdit_create_time.setText(info_dic['create_time'])
+            # self.data_manager.get(self.current_dataset_name + ".create_time"))
+            self.lineEdit_update_time.setText(info_dic['update_time'])
+            # self.data_manager.get(self.current_dataset_name + ".update_time"))
+            self.info = info_dic['info']  # self.data_manager.get(self.current_dataset_name + ".info")
+            self.info_init()
+
+
+class DataFilterForm(DataProcessDialog, DataFilter_Ui_Form):
     """
     打开"数据-筛选"窗口
     """
@@ -142,21 +129,8 @@ class DataFilterForm(QWidget, DataFilter_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
 
-class DataRoleForm(QDialog, DataRole_Ui_Form):
+class DataRoleForm(DataProcessDialog, DataRole_Ui_Form):
     """
     "新建窗口"
     """
@@ -169,7 +143,7 @@ class DataRoleForm(QDialog, DataRole_Ui_Form):
 
         self.current_dataset = pd.DataFrame()  # 当前数据集
         self.current_dataset_name = ""
-        self.all_dataset = dict()
+        self.data_manager = dict()
         self.filter_dataset = pd.DataFrame()  # 预览筛选后内容
         self.role_dataset = pd.DataFrame()  # 预览筛选后内容
 
@@ -181,28 +155,7 @@ class DataRoleForm(QDialog, DataRole_Ui_Form):
         self.lineEdit_col_find.textChanged.connect(self.change_find)
         self.comboBox_columns.currentTextChanged.connect(self.change_column)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
-    #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
+    # ================================自定义槽函数=========================
 
     def dataset_export(self):
         fileName_choose, filetype = QFileDialog.getSaveFileName(self,
@@ -302,20 +255,20 @@ class DataRoleForm(QDialog, DataRole_Ui_Form):
                     self.tableWidget_dataset.setItem(i, j, newItem)
 
 
-class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
+class DataRowFilterForm(DataProcessDialog, DataRowFilter_Ui_Form):
     """
-    打开"数据-行筛选"窗口
+    打开"数据-行筛选"窗口,也就是‘筛选。’
     """
     signal_data_change = pyqtSignal(str, dict, str, str, str, str, str)  # 自定义信号，用于修改数据
 
-    def __init__(self, parent=None):
+    def __init__(self, parent=None, data_manager=None):
         super().__init__(parent)
         self.setupUi(self)
         self.center()
 
         self.current_dataset = pd.DataFrame()
         self.current_dataset_name = ''
-        self.all_dataset = {}
+        self.data_manager = data_manager
         self.current_dataset_columns = []
         self.data_type = []
         self.filter_dataset = pd.DataFrame()
@@ -342,28 +295,7 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
         self.lineEdit_col_find.textChanged.connect(self.exec_filter)
         self.comboBox_dtype.currentIndexChanged.connect(self.exec_filter)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def dataset_init(self):
         self.filter_dataset = self.current_dataset.copy().head(100)
@@ -454,6 +386,7 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
         else:
             self.comboBox_col_condition.clear()
             self.comboBox_col_condition.addItems(['模糊匹配', 'in', 'not in'])
+
     @exception_handler
     def filter_column(self):
         # 根据列筛选
@@ -473,7 +406,7 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
                 elif self.comboBox_col_condition.currentText() == "<=":
                     self.filter_dataset = data[data[col] <= float(content)]
             else:
-                content=content.lower()
+                content = content.lower()
                 if self.comboBox_col_condition.currentText() == "模糊匹配":
                     self.filter_dataset = data[data[col].map(str.lower).str.contains(content)]
                 elif self.comboBox_col_condition.currentText() == "in":
@@ -485,7 +418,7 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
     def filter_dtype(self):
         data = self.current_dataset.copy()
         dtype = self.comboBox_dtype.currentText()  # 当前要筛选的数据类型
-        if dtype =="全部":
+        if dtype == "全部":
             self.data_preview(data)
             return
         self.filter_dataset = data.select_dtypes(include=dtype)
@@ -514,10 +447,11 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
         if ok and (len(dataset_name) != 0):
             logging.info("发射导入数据信号")
             if len(self.filter_dataset) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                property_dic = self.data_manager.get_info(self.current_dataset_name)
+                create_time = property_dic['create_time']
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = property_dic['path']
+                file_size = property_dic['file_size']
                 remarks = ''
                 self.signal_data_change.emit(dataset_name,
                                              self.filter_dataset.to_dict(),
@@ -537,10 +471,11 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
         if reply == QMessageBox.Yes:
             logging.info("发射导入数据信号")
             if len(self.filter_dataset) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                info_dic = self.data_manager.get_info(self.current_dataset_name)
+                create_time = info_dic['create_time']
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = info_dic['path']
+                file_size = info_dic['file_size']
                 remarks = ''
                 self.signal_data_change.emit(self.current_dataset_name,
                                              self.filter_dataset.to_dict(),
@@ -555,7 +490,7 @@ class DataRowFilterForm(QDialog, DataRowFilter_Ui_Form):
                 self.close()
 
 
-class DataColumnDescForm(QDialog, Columns_desc_Ui_Form):
+class DataColumnDescForm(DataProcessDialog, Columns_desc_Ui_Form):
     """
     打开"数据-列"窗口
     """
@@ -588,28 +523,7 @@ class DataColumnDescForm(QDialog, Columns_desc_Ui_Form):
         self.pushButton_group_down.clicked.connect(self.var_group_down)
         self.pushButton_group_del.clicked.connect(self.var_group_del)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def slot_var_change(self):
         # 只允许查看一个变量的描述
@@ -778,7 +692,7 @@ class DataColumnDescForm(QDialog, Columns_desc_Ui_Form):
                     self.tableWidget_dataset.setItem(i, j, newItem)
 
 
-class DataDeleteRowForm(QWidget, DataDeleteRow_Ui_Form):
+class DataDeleteRowForm(DataProcessDialog, DataDeleteRow_Ui_Form):
     """
     打开"数据-删除行"窗口
     """
@@ -788,21 +702,8 @@ class DataDeleteRowForm(QWidget, DataDeleteRow_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
 
-class DataDeleteColumnForm(QWidget, DataDeleteColumn_Ui_Form):
+class DataDeleteColumnForm(DataProcessDialog, DataDeleteColumn_Ui_Form):
     """
     打开"数据-删除列"窗口
     """
@@ -812,21 +713,8 @@ class DataDeleteColumnForm(QWidget, DataDeleteColumn_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
 
-class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
+class DataMergeVerticalForm(DataProcessDialog, DataMergeVertical_Ui_Form):
     """
     打开"数据-纵向合并"窗口
     """
@@ -838,7 +726,7 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
         self.center()
 
         self.current_dataset_name = ""
-        self.all_dataset = {}  # 定义“全部数据集”为一个字典
+        self.data_manager = None  # 定义“全部数据集”为一个字典
         self.all_dataset_name = ()
         self.dataset_alter = pd.DataFrame()  # 修改后的数据
 
@@ -866,29 +754,7 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
         self.pushButton_start_down.clicked.connect(self.dataset_start_down)
         self.pushButton_append_down.clicked.connect(self.dataset_append_down)
 
-    #  ================================事件处理函数=========================
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def slot_listWidget_start_change(self):
         self.current_dataset_name = self.listWidget_start.item(0).text()
@@ -1000,12 +866,12 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
 
     def dataset_merge_vertical(self):
         dataset_name = self.listWidget_start.item(0).text()
-        dataset_start = self.all_dataset.get(dataset_name)
+        dataset_start = self.data_manager.get(dataset_name)
         dataset_merge_list_name = []
         dataset_merge_list = [dataset_start, ]
         for i in range(self.listWidget_append.count()):
             dataset_merge_list_name.append(self.listWidget_append.item(i).text())
-            dataset_merge_list.append(self.all_dataset.get(self.listWidget_append.item(i).text()))
+            dataset_merge_list.append(self.data_manager.get(self.listWidget_append.item(i).text()))
 
         if self.listWidget_start.count() < 1:
             QMessageBox.information(self, "注意", "请选择起始数据集", QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
@@ -1020,10 +886,10 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
         if reply == QMessageBox.Yes:
             logging.info("发射导入数据信号")
             if len(self.dataset_alter) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = self.data_manager.get(self.current_dataset_name + '.path')
+                file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
                 remarks = ''
                 self.signal_data_change.emit(self.current_dataset_name,
                                              self.dataset_alter.to_dict(),
@@ -1044,10 +910,10 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
         if ok and (len(dataset_name) != 0):
             logging.info("发射导入数据信号")
             if len(self.dataset_alter) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = self.data_manager.get(self.current_dataset_name + '.path')
+                file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
                 remarks = ''
                 self.signal_data_change.emit(dataset_name,
                                              self.dataset_alter.to_dict(),
@@ -1062,7 +928,7 @@ class DataMergeVerticalForm(QDialog, DataMergeVertical_Ui_Form):
                 self.close()
 
 
-class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
+class DataMergeHorizontalForm(DataProcessDialog, DataMergeHorizontal_Ui_Form):
     """
     打开"数据-横向合并"窗口
     """
@@ -1074,7 +940,7 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
         self.center()
 
         self.current_dataset_name = ""
-        self.all_dataset = {}  # 定义“全部数据集”为一个字典
+        self.data_manager = {}  # 定义“全部数据集”为一个字典
         self.dataset_alter = pd.DataFrame()
 
         self.listWidget_dataset.setSelectionMode(QAbstractItemView.ExtendedSelection)  # 设置为按住ctrl可以多选
@@ -1095,29 +961,7 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
         self.pushButton_append_down.clicked.connect(self.dataset_append_down)
         self.pushButton_append_del.clicked.connect(self.dataset_append_del)
 
-    #  ================================事件处理函数=========================
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def slot_listWidget_start_change(self):
         self.current_dataset_name = self.listWidget_start.item(0).text()
@@ -1229,14 +1073,14 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
 
     def dataset_merge_horizontal(self):
         dataset_name = self.listWidget_start.item(0).text()  # dataset_name
-        dataset_start = self.all_dataset.get(dataset_name)  # dataset_start
+        dataset_start = self.data_manager.get(dataset_name)  # dataset_start
         dataset_merge_list_name = []  # 要合并的数据集名称
         dataset_merge_list = []  # 要合并的数据
         for i in range(self.listWidget_append.count()):  # 遍历列表n-1次
             if i < self.listWidget_append.count():
                 dataset_name = self.listWidget_append.item(i).text()
                 dataset_merge_list_name.append(dataset_name)
-                dataset = self.all_dataset.get(self.listWidget_append.item(i).text()).copy()  # 避免修改原始数据
+                dataset = self.data_manager.get(self.listWidget_append.item(i).text()).copy()  # 避免修改原始数据
                 dataset.columns = [x + "_" + dataset_name.split('.')[0] for x in dataset.columns]  # 为列名添加数据集后缀
                 dataset_merge_list.append(dataset)
 
@@ -1256,10 +1100,10 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
         if reply == QMessageBox.Yes:
             logging.info("发射导入数据信号")
             if len(self.dataset_alter) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = self.data_manager.get(self.current_dataset_name + '.path')
+                file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
                 remarks = ''
                 self.signal_data_change.emit(self.current_dataset_name,
                                              self.dataset_alter.to_dict(),
@@ -1280,10 +1124,10 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
         if ok and (len(dataset_name) != 0):
             logging.info("发射导入数据信号")
             if len(self.dataset_alter) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = self.data_manager.get(self.current_dataset_name + '.path')
+                file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
                 remarks = ''
                 self.signal_data_change.emit(dataset_name,
                                              self.dataset_alter.to_dict(),
@@ -1298,7 +1142,7 @@ class DataMergeHorizontalForm(QDialog, DataMergeHorizontal_Ui_Form):
                 self.close()
 
 
-class DataPartitionForm(QDialog, DataPartition_Ui_Form):
+class DataPartitionForm(DataProcessDialog, DataPartition_Ui_Form):
     """
     打开"数据-数据分区"窗口
     """
@@ -1309,51 +1153,20 @@ class DataPartitionForm(QDialog, DataPartition_Ui_Form):
         self.setupUi(self)
         self.center()
 
-
         self.current_dataset = pd.DataFrame()
         self.current_dataset_name = ''
 
-
         self.widget_part_2.hide()
         self.widget_part_3.hide()
         self.widget_part_4.hide()
         self.widget_part_other.setVisible(False)
 
-
-
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
-
-
-
-
-
-
 
 
-class DataNewColumnForm(QWidget, DataNewColumn_Ui_Form):
+class DataNewColumnForm(DataProcessDialog, DataNewColumn_Ui_Form):
     """
-    打开"从sas导入"窗口
+    打开"新建列"窗口
     """
 
     def __init__(self, parent=None):
@@ -1361,21 +1174,8 @@ class DataNewColumnForm(QWidget, DataNewColumn_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
 
-class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
+class DataMissingValueForm(DataProcessDialog, DataMissingValue_Ui_Form):
     """
     打开"数据-缺失值"窗口
     """
@@ -1388,7 +1188,7 @@ class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
 
         self.current_dataset = pd.DataFrame()  # 当前数据集
         self.current_dataset_name = ""
-        self.all_dataset = dict()
+        self.data_manager = dict()
         self.missing_dataset = pd.DataFrame()  # 处理后的缺失值数据
         self.missing_stat_dataset = pd.DataFrame()  # 缺失值统计数据
 
@@ -1406,28 +1206,7 @@ class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
 
         self.listWidget_selected.itemChanged.connect(self.dataset_filter_column)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def var_selected_del(self):
         current_row = self.listWidget_selected.currentRow()
@@ -1578,10 +1357,10 @@ class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
     def dataset_update(self):
         logging.info("发射导入数据信号")
         if len(self.missing_dataset) > 0:
-            create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+            create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
             update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-            path = self.all_dataset.get(self.current_dataset_name + '.path')
-            file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+            path = self.data_manager.get(self.current_dataset_name + '.path')
+            file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
             remarks = ''
             self.signal_data_change.emit(self.current_dataset_name, self.missing_dataset.to_dict(), path,
                                          create_time, update_time, remarks, file_size)  # 发射信号
@@ -1598,10 +1377,10 @@ class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
         if ok and (len(dataset_name) != 0):
             logging.info("发射导入数据信号")
             if len(self.missing_dataset) > 0:
-                create_time = self.all_dataset.get(self.current_dataset_name + '.create_time')
+                create_time = self.data_manager.get(self.current_dataset_name + '.create_time')
                 update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
-                path = self.all_dataset.get(self.current_dataset_name + '.path')
-                file_size = self.all_dataset.get(self.current_dataset_name + '.file_size')
+                path = self.data_manager.get(self.current_dataset_name + '.path')
+                file_size = self.data_manager.get(self.current_dataset_name + '.file_size')
                 remarks = ''
                 self.signal_data_change.emit(dataset_name, self.missing_dataset.to_dict(), path,
                                              create_time, update_time, remarks, file_size)  # 发射信号
@@ -1611,7 +1390,7 @@ class DataMissingValueForm(QDialog, DataMissingValue_Ui_Form):
                 self.close()
 
 
-class DataSortForm(QWidget, DataSort_Ui_Form):
+class DataSortForm(DataProcessDialog, DataSort_Ui_Form):
     """
     打开"从sas导入"窗口
     """
@@ -1621,21 +1400,8 @@ class DataSortForm(QWidget, DataSort_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
 
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
-
-class DataTransposeForm(QDialog, DataTranspose_Ui_Form):
+class DataTransposeForm(DataProcessDialog, DataTranspose_Ui_Form):
     """
     打开"数据-转置"窗口
     """
@@ -1668,29 +1434,6 @@ class DataTransposeForm(QDialog, DataTranspose_Ui_Form):
         self.pushButton_add.clicked.connect(self.var_selected_add)
         self.pushButton_delete.clicked.connect(self.var_selected_add)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
-    #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
-
     #  ================================自定义功能函数=========================
     def var_selected_del(self):
         current_row = self.listWidget_selected.currentRow()
@@ -1794,7 +1537,7 @@ class DataTransposeForm(QDialog, DataTranspose_Ui_Form):
                 self.close()
 
 
-class DataStandardForm(QWidget, DataStandard_Ui_Form):
+class DataStandardForm(DataProcessDialog, DataStandard_Ui_Form):
     """
     打开"从sas导入"窗口
     """
@@ -1804,21 +1547,8 @@ class DataStandardForm(QWidget, DataStandard_Ui_Form):
         self.setupUi(self)
         self.center()
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
 
-class DataSampleForm(QDialog, DataSample_Ui_Form):
+class DataSampleForm(DataProcessDialog, DataSample_Ui_Form):
     """
     打开"数据抽样"窗口
     """
@@ -1851,29 +1581,6 @@ class DataSampleForm(QDialog, DataSample_Ui_Form):
         self.pushButton_weight_down.clicked.connect(self.var_weight_down)
         self.pushButton_weight_del.clicked.connect(self.var_weight_del)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
-    #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
-
     def var_selected_del(self):
         # 移除选中的item
         current_row = self.listWidget_selected.currentRow()
@@ -2052,7 +1759,7 @@ class DataSampleForm(QDialog, DataSample_Ui_Form):
                 self.close()
 
 
-class DataColumnNameForm(QDialog, DataColumnName_Ui_Form):
+class DataColumnNameForm(DataProcessDialog, DataColumnName_Ui_Form):
     """
     打开"数据-列名处理"窗口
     """
@@ -2348,7 +2055,7 @@ class DataColumnEncodeForm(QWidget, DataColumnEncode_Ui_Form):
         self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
 
 
-class DataReplaceForm(QDialog, DataReplace_Ui_Form):
+class DataReplaceForm(DataProcessDialog, DataReplace_Ui_Form):
     """
     打开"数据-内容替换"窗口
     """
@@ -2375,28 +2082,7 @@ class DataReplaceForm(QDialog, DataReplace_Ui_Form):
         self.pushButton_find.clicked.connect(self.data_find)
         self.pushButton_replace.clicked.connect(self.dataset_update)
 
-    def keyPressEvent(self, e):
-        """
-        按键盘Escape退出当前窗口
-        @param e:
-        """
-        if e.key() == Qt.Key_Escape:
-            self.close()
-
-    def center(self):
-        screen = QDesktopWidget().screenGeometry()
-        size = self.geometry()
-        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
-
     #  ================================自定义槽函数=========================
-    def get_help(self):
-        """
-        打开帮助页面
-        """
-        try:
-            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
-        except Exception as e:
-            webbrowser.open_new_tab("http://www.py2cn.com")
 
     def ui_init(self):
 
diff --git a/pyminer/features/sample/io.py b/pyminer/features/sample/io.py
index 85f587d9924efaabd9303cbd902c4faed51ec165..cb3aae5606bd13cb85efffdc7a455b4dfe0a5563 100644
--- a/pyminer/features/sample/io.py
+++ b/pyminer/features/sample/io.py
@@ -11,7 +11,7 @@ from PyQt5 import QtWidgets, QtCore
 from PyQt5.QtWidgets import *
 from PyQt5.QtCore import *
 
-#导入功能组件
+# 导入功能组件
 from pyminer.ui.data.data_import_text import Ui_Form as Import_Ui_Form
 from pyminer.ui.data.data_import_excel import Ui_Form as ExcelImport_Ui_Form
 from pyminer.ui.data.data_import_spss import Ui_Form as SPSSImport_Ui_Form
@@ -23,7 +23,7 @@ logging.basicConfig(format="%(asctime)s %(name)s:%(levelname)s:%(message)s", dat
                     level=logging.INFO)
 
 
-class ImportForm(QDialog,Import_Ui_Form):
+class ImportForm(QDialog, Import_Ui_Form):
     """
     "导入"窗口
     """
@@ -34,7 +34,7 @@ class ImportForm(QDialog,Import_Ui_Form):
         self.setupUi(self)
         self.center()
 
-        #QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
+        # QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
 
         self.file_path = ''
         self.current_dataset_name = ""
@@ -104,9 +104,9 @@ class ImportForm(QDialog,Import_Ui_Form):
                     self.file_path, header, skiprows, nrows_preview, na_values))
 
                 self.current_dataset = pd.read_csv(self.file_path, engine="python", sep=sep,
-                                                     encoding=encoding,
-                                                     header=header,
-                                                     skiprows=skiprows, nrows=nrows, na_values=na_values)
+                                                   encoding=encoding,
+                                                   header=header,
+                                                   skiprows=skiprows, nrows=nrows, na_values=na_values)
 
                 if len(self.current_dataset) == 0:
                     self.tableWidget_previewData.clear()
@@ -124,8 +124,8 @@ class ImportForm(QDialog,Import_Ui_Form):
             update_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')  # 数据更新时间
             path = self.file_path
             print("path:", path)
-            file_size=str(os.path.getsize(path))
-            print("file_size:",file_size)
+            file_size = str(os.path.getsize(path))
+            print("file_size:", file_size)
             remarks = ''
             self.signal_data_change.emit(self.current_dataset_name, self.current_dataset.to_dict(), path,
                                          create_time, update_time, remarks, file_size)  # 发射信号
@@ -195,8 +195,8 @@ class ImportForm(QDialog,Import_Ui_Form):
                 na_values = self.lineEdit_missValue.text()
 
             self.current_dataset = pd.read_csv(self.file_path, engine="python", sep=sep, encoding=encoding,
-                                                 header=header,
-                                                 skiprows=skiprows, nrows=nrows, na_values=na_values)
+                                               header=header,
+                                               skiprows=skiprows, nrows=nrows, na_values=na_values)
 
             if len(self.current_dataset) == 0:
                 self.tableWidget_previewData.clear()
@@ -242,7 +242,7 @@ class ImportForm(QDialog,Import_Ui_Form):
                     self.tableWidget_previewData.setItem(i, j, newItem)
 
 
-class ImportDatabase(QDialog,ImportDatabase_Ui_Form):
+class ImportDatabase(QDialog, ImportDatabase_Ui_Form):
     """
     "导入"窗口
     """
@@ -256,14 +256,14 @@ class ImportDatabase(QDialog,ImportDatabase_Ui_Form):
 
         self.current_dataset_name = ''  # 当前数据集名称
         self.current_dataset = pd.DataFrame()  # 修改后的数据集
-        self.all_dataset=''  #当前已导入的全部数据
-        self.file_path='' #当前数据路径
+        self.data_manager = None  # 当前已导入的全部数据
+        self.file_path = ''  # 当前数据路径
 
-        #QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
+        # QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
         self.label_test.setHidden(True)
         self.lineEdit_passwd.setEchoMode(QtWidgets.QLineEdit.Password)
 
-        #事件
+        # 事件
         self.pushButton_cancel.clicked.connect(self.close)
         self.pushButton_test.clicked.connect(self.database_test)
         self.pushButton_ok.clicked.connect(self.import_send_dataset)
@@ -291,21 +291,20 @@ class ImportDatabase(QDialog,ImportDatabase_Ui_Form):
             logging.info("导入数据信号发射失败")
             self.close()
 
-
     def database_test(self):
         import pymysql
-        host=self.lineEdit_host.text()
-        user=self.lineEdit_user.text()
-        passwd=self.lineEdit_passwd.text()
-        db=self.lineEdit_db.text()
-        port=self.spinBox_port.value()
+        host = self.lineEdit_host.text()
+        user = self.lineEdit_user.text()
+        passwd = self.lineEdit_passwd.text()
+        db = self.lineEdit_db.text()
+        port = self.spinBox_port.value()
         charset = 'utf8'
-        table=self.lineEdit_table.text()
-        sql='select * from '+db+'.'+table;
+        table = self.lineEdit_table.text()
+        sql = 'select * from ' + db + '.' + table;
         print(sql)
-        if len(db)==0:
-            QMessageBox.information(self, '注意', '数据库名不能为空', QMessageBox.Ok , QMessageBox.Ok)
-        elif len(table)==0:
+        if len(db) == 0:
+            QMessageBox.information(self, '注意', '数据库名不能为空', QMessageBox.Ok, QMessageBox.Ok)
+        elif len(table) == 0:
             QMessageBox.information(self, '注意', '表名不能为空', QMessageBox.Ok, QMessageBox.Ok)
         else:
             try:
@@ -326,25 +325,25 @@ class ImportDatabase(QDialog,ImportDatabase_Ui_Form):
 
     def database_connect(self):
         import pymysql
-        host=self.lineEdit_host.text()
-        user=self.lineEdit_user.text()
-        passwd=self.lineEdit_passwd.text()
-        db=self.lineEdit_db.text()
-        port=self.spinBox_port.value()
+        host = self.lineEdit_host.text()
+        user = self.lineEdit_user.text()
+        passwd = self.lineEdit_passwd.text()
+        db = self.lineEdit_db.text()
+        port = self.spinBox_port.value()
         charset = 'utf8'
-        table=self.lineEdit_table.text()
-        self.current_dataset_name=table
-        self.file_path=db+'.'+table
-        sql='select * from '+self.file_path;
+        table = self.lineEdit_table.text()
+        self.current_dataset_name = table
+        self.file_path = db + '.' + table
+        sql = 'select * from ' + self.file_path;
         print(sql)
-        if len(db)==0:
-            QMessageBox.information(self, '注意', '数据库名不能为空', QMessageBox.Ok , QMessageBox.Ok)
-        elif len(table)==0:
+        if len(db) == 0:
+            QMessageBox.information(self, '注意', '数据库名不能为空', QMessageBox.Ok, QMessageBox.Ok)
+        elif len(table) == 0:
             QMessageBox.information(self, '注意', '表名不能为空', QMessageBox.Ok, QMessageBox.Ok)
         else:
             try:
                 conn = pymysql.connect(host=host, user=user, passwd=passwd, db=db, port=port, charset=charset)
-                df = pd.read_sql(sql, con = conn)
+                df = pd.read_sql(sql, con=conn)
                 return df
                 conn.close()
                 print('连接成功')
@@ -375,7 +374,7 @@ class ImportDatabase(QDialog,ImportDatabase_Ui_Form):
             self.close()
 
 
-class ImportExcelForm(QDialog,ExcelImport_Ui_Form):
+class ImportExcelForm(QDialog, ExcelImport_Ui_Form):
     """
     打开"从excel导入"窗口
     """
@@ -386,9 +385,9 @@ class ImportExcelForm(QDialog,ExcelImport_Ui_Form):
         self.setupUi(self)
         self.center()
 
-        self.file_path = ''  #文件路径
-        self.current_dataset_name = "" #当前数据集名称
-        self.current_dataset = pd.DataFrame() #当前数据集
+        self.file_path = ''  # 文件路径
+        self.current_dataset_name = ""  # 当前数据集名称
+        self.current_dataset = pd.DataFrame()  # 当前数据集
 
         # 导入窗口的相关事件
         # 在"导入"窗口，打开选择文件
@@ -489,8 +488,8 @@ class ImportExcelForm(QDialog,ExcelImport_Ui_Form):
                     self.file_path, sheet, header, skiprows, nrows_preview, na_values))
 
                 self.current_dataset = pd.read_excel(self.file_path, sheet_name=sheet,
-                                                       header=header,
-                                                       skiprows=skiprows, nrows=nrows, na_values=na_values)
+                                                     header=header,
+                                                     skiprows=skiprows, nrows=nrows, na_values=na_values)
 
                 if len(self.current_dataset) == 0:
                     self.tableWidget_previewData.clear()
@@ -563,7 +562,7 @@ class ImportExcelForm(QDialog,ExcelImport_Ui_Form):
 
             logging.info("file_path：{}，sheet_name：{}，header：{}，skiprows：{}，nrows：{}，na_values:{}".format(
                 self.file_path, sheet, header, skiprows, nrows_preview, na_values))
-            if len(sheet)>0:
+            if len(sheet) > 0:
                 self.current_dataset = pd.read_excel(self.file_path, sheet_name=sheet,
                                                      header=header,
                                                      skiprows=skiprows, nrows=nrows, na_values=na_values)
@@ -612,8 +611,7 @@ class ImportExcelForm(QDialog,ExcelImport_Ui_Form):
                     self.tableWidget_previewData.setItem(i, j, newItem)
 
 
-
-class ImportSpssForm(QDialog,SPSSImport_Ui_Form):
+class ImportSpssForm(QDialog, SPSSImport_Ui_Form):
     """
     打开"从spss导入"窗口
     """
@@ -624,7 +622,7 @@ class ImportSpssForm(QDialog,SPSSImport_Ui_Form):
         self.setupUi(self)
         self.center()
 
-        #QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
+        # QssTools.set_qss_to_obj(ui_dir + "/source/qss/patata.qss", self)
 
         self.file_path = ''
         self.current_dataset_name = ""
@@ -826,7 +824,7 @@ class ImportSpssForm(QDialog,SPSSImport_Ui_Form):
         return self.current_dataset.columns
 
 
-class ImportSasForm(QDialog,SASImport_Ui_Form):
+class ImportSasForm(QDialog, SASImport_Ui_Form):
     """
     打开"从sas导入"窗口
     """
diff --git a/pyminer/pmapp.py b/pyminer/pmapp.py
index d0820123bf08d5e3a9b337888b4d9ffa387d6467..90e427f56868ccd65d4ec13d19d7ced8264057bc 100644
--- a/pyminer/pmapp.py
+++ b/pyminer/pmapp.py
@@ -9,13 +9,12 @@ import webbrowser
 import qdarkstyle
 import os, sys
 
-from PyQt5.QtCore import QSize, pyqtSignal, QTimer, QRectF
-from PyQt5.QtWidgets import QApplication, QStyleFactory, QDesktopWidget, QMessageBox, QSplashScreen, QTreeWidgetItem, \
-    QListWidgetItem, QWidget, QHBoxLayout, QGridLayout, QLabel, QSpacerItem, QSizePolicy, \
-    QGraphicsDropShadowEffect, QListWidget, QGraphicsScene, QAbstractItemView, QTableWidgetItem, QGraphicsObject, \
+from PyQt5.QtCore import QRectF
+from PyQt5.QtWidgets import QApplication, QStyleFactory, QDesktopWidget, QMessageBox, QTreeWidgetItem, \
+    QGraphicsScene, QAbstractItemView, QTableWidgetItem, QGraphicsObject, \
     QGraphicsItem, QFileDialog
 from PyQt5.QtWidgets import QMainWindow, QAction, qApp, QMenu
-from PyQt5.QtGui import QIcon, QPixmap, QImage, QColor, QPainter, QPainterPath, QPen, QTextCursor, QBrush, QCursor
+from PyQt5.QtGui import QIcon, QColor, QPainter, QPen, QTextCursor, QBrush, QCursor
 
 from pyminer.features.sample import io
 from pyminer.ui.base.mainForm import Ui_MainWindow
@@ -41,6 +40,7 @@ import pandas as pd
 
 from pyminer.ui.base.widgets.notificationwidget import NotificationWindow
 from pyminer.features.statistics.test_basic_stats import StatsBaseForm
+from pyminer.share.datahost import DataManager
 
 TextStyle = """
 QMessageBox QPushButton[text="OK"] {
@@ -102,6 +102,7 @@ QMessageBox QPushButton[text="Ignore"] {
 }
 """
 
+
 class Application(QApplication):
     def __init__(self, argv):
         QApplication.__init__(self, argv)
@@ -132,9 +133,6 @@ class Application(QApplication):
             self.setStyle(QStyleFactory.create("Windows"))
 
 
-
-
-
 class CustomRect(QGraphicsObject):
     def __init__(self):
         super(CustomRect, self).__init__()
@@ -186,11 +184,16 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         self.center()
 
         self.__file_path_choose = ""
-        self.__all_dataset = dict()  # 定义字典，保存全部数据集的基本信息
-        self.__all_dataset_name = set()  # 定义集合，保存全部数据集名称，确保不会重复
+        # self.__all_dataset = dict()  # 定义字典，保存全部数据集的基本信息
+        # self.__all_dataset_name = set()  # 定义集合，保存全部数据集名称，确保不会重复
+
+        self.data_manager = DataManager()  # __all_dataset和__all_dataset_name都已经注释掉了。现在用self.datahost来代替。
+        # 关于datahost的用法见其定义的文件。
+
         self.__current_dataset_name = ""
         self.__current_dataset = pd.DataFrame()
         self.__current_dataset_dtype = set()  # 定义集合，保存当前数据集中存在的数据类型，确保不会重复
+
         self.__result_path = ''  # 结果文件保存路径
         self.__setting = dict()  # 设置文件
         self.slot_flush_console('info', 'system', 'pyminer已准备就绪')
@@ -740,7 +743,6 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
                 """
         print("开始更新数据")
         node_name = self.treeWidget_storehouse.currentItem().text(0)
-        print(node_name)
         all_data = pd.DataFrame(self.__all_dataset.get(node_name))  # 获取当前数据
         self.__current_dataset_name = node_name  # 修改当前数据名称
         # 获取已经导入页面获取的数据集
@@ -832,7 +834,7 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         # 修改当前正在使用的数据集
         self.__current_dataset = dataset
         self.__current_dataset_name = dataset_name
-        self.__all_dataset_name.add(dataset_name)  # 保存数据集名称
+
         row = str(dataset.shape[0])  # 行数
         col = str(dataset.shape[1])  # 列数
         memory_size = self.__current_dataset.memory_usage().sum()
@@ -867,33 +869,12 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
             data_notna_cnt.append(dataset.loc[:, i].notna().sum())
         info = pd.DataFrame({"变量名称": list(dataset.columns), "数据类型": data_type, "非空值数量": data_notna_cnt})
 
-        dataset_new = {dataset_name: dataset,
-                       dataset_name + ".path": path,
-                       dataset_name + ".create_time": create_time,
-                       dataset_name + ".update_time": update_time,
-                       dataset_name + ".row": row,
-                       dataset_name + ".col": col,
-                       dataset_name + ".remarks": remarks,
-                       dataset_name + ".file_size": file_usage,
-                       dataset_name + ".memory_usage": memory_usage,
-                       dataset_name + ".info": info, }
-
         # 添加当前数据集到数据集列表中
         print("添加当前数据集到数据集列表中")
-        # 检查数据集名称是否已存在，如果存在则修改相关信息，否则进行新增
-        if self.__current_dataset_name in list(self.__all_dataset.keys()):
-            self.__all_dataset[dataset_name] = dataset
-            self.__all_dataset[dataset_name + ".path"] = path
-            self.__all_dataset[dataset_name + ".create_time"] = create_time
-            self.__all_dataset[dataset_name + ".update_time"] = update_time
-            self.__all_dataset[dataset_name + ".row"] = row
-            self.__all_dataset[dataset_name + ".col"] = col
-            self.__all_dataset[dataset_name + ".remarks"] = remarks
-            self.__all_dataset[dataset_name + ".file_size"] = file_size
-            self.__all_dataset[dataset_name + ".memory_usage"] = memory_usage
-            self.__all_dataset[dataset_name + ".info"] = info
-        else:
-            self.__all_dataset.update(dataset_new)
+        self.data_manager.set_data(dataset_name, dataset)
+        self.data_manager.set_info(dataset_name, path=path, create_time=create_time, update_time=update_time,
+                                   row=row, col=col, remarks=remarks, file_size=file_size, memory_usage=memory_usage,
+                                   info=info)
         self.tabWidget.setCurrentIndex(0)
 
     def add_dataset_to_workdir(self, dataset_name):
@@ -934,7 +915,7 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         显示"从数据库导入"窗口
         """
         self.import_database = io.ImportDatabase()
-        self.import_database.all_dataset = self.__all_dataset
+        self.import_database.data_manager = self.data_manager
         self.import_database.signal_data_change.connect(self.slot_dataset_reload)
         self.import_database.show()
 
@@ -942,10 +923,10 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         """
         显示"数据-行筛选"窗口
         """
-        self.data_row_filter_form = preprocess.DataRowFilterForm()
+        self.data_row_filter_form = preprocess.DataRowFilterForm(data_manager=self.data_manager)
         self.data_row_filter_form.current_dataset = self.__current_dataset
         self.data_row_filter_form.current_dataset_name = self.__current_dataset_name
-        self.data_row_filter_form.all_dataset = self.__all_dataset
+
         self.data_row_filter_form.current_dataset_columns = self.__current_dataset.columns
         self.data_row_filter_form.comboBox_columns.addItems(list(self.__current_dataset.columns))
         for col in self.__current_dataset.columns:
@@ -960,21 +941,20 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         显示"数据信息"窗口
         """
         self.data_info = preprocess.DataInfoForm()
-        self.data_info.all_dataset = self.__all_dataset
-        self.data_info.all_dataset_name = list(self.__all_dataset_name)
+        self.data_info.data_manager = self.data_manager  # [TODO]这是什么？
+        self.data_info.all_dataset_name = list(self.data_manager.all_data_names)
         self.data_info.current_dataset_name = self.__current_dataset_name
         self.data_info.lineEdit_dataset_name.setText(self.__current_dataset_name)
-        self.data_info.lineEdit_path.setText(self.__all_dataset.get(self.__current_dataset_name + ".path"))
-        self.data_info.lineEdit_row.setText(self.__all_dataset.get(self.__current_dataset_name + ".row"))
-        self.data_info.lineEdit_col.setText(self.__all_dataset.get(self.__current_dataset_name + ".col"))
-        self.data_info.lineEdit_file_size.setText(self.__all_dataset.get(self.__current_dataset_name + ".file_size"))
-        self.data_info.lineEdit_memory_usage.setText(
-            self.__all_dataset.get(self.__current_dataset_name + ".memory_usage"))
-        self.data_info.lineEdit_create_time.setText(
-            self.__all_dataset.get(self.__current_dataset_name + ".create_time"))
-        self.data_info.lineEdit_update_time.setText(
-            self.__all_dataset.get(self.__current_dataset_name + ".update_time"))
-        self.data_info.info = self.__all_dataset.get(self.__current_dataset_name + ".info")
+
+        info_dic = self.data_manager.get_info(self.__current_dataset_name)  # 调用get_info方法可以获取数据的信息,全部信息以列表的形式返回。
+
+        self.data_info.lineEdit_path.setText(info_dic.get('path'))
+        self.data_info.lineEdit_row.setText(info_dic.get('row'))
+        self.data_info.lineEdit_col.setText(info_dic.get('col'))
+        self.data_info.lineEdit_file_size.setText(info_dic.get('file_size'))
+        self.data_info.lineEdit_memory_usage.setText(info_dic.get('memory_usage'))
+        self.data_info.lineEdit_create_time.setText(info_dic.get('create_time'))
+        self.data_info.lineEdit_update_time.setText(info_dic.get('update_time'))
         self.data_info.info_init()
         self.data_info.exec_()
 
@@ -991,7 +971,7 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         """
         self.data_role = preprocess.DataRoleForm()
         self.data_role.current_dataset = self.__current_dataset.copy()
-        self.data_role.all_dataset = self.__all_dataset
+        self.data_role.data_manager = self.data_manager
         self.data_role.current_dataset_name = self.__current_dataset_name
         self.data_role.current_dataset_columns = self.__current_dataset.columns
         self.data_role.comboBox_columns.addItems(list(self.__current_dataset.columns))
@@ -1004,9 +984,9 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         显示"数据-纵向合并"窗口
         """
         self.data_merge_vertical = preprocess.DataMergeVerticalForm()
-        self.data_merge_vertical.listWidget_dataset.addItems(list(self.__all_dataset_name))
-        self.data_merge_vertical.all_dataset = self.__all_dataset
-        self.data_merge_vertical.all_dataset_name = self.__all_dataset_name
+        self.data_merge_vertical.listWidget_dataset.addItems(list(self.data_manager.all_data_names))
+        self.data_merge_vertical.data_manager = self.data_manager
+        self.data_merge_vertical.all_dataset_name = self.data_manager.all_data_names
         self.data_merge_vertical.listWidget_start.addItem(self.__current_dataset_name)
         self.data_merge_vertical.current_dataset_name = self.__current_dataset_name
         self.data_merge_vertical.signal_data_change.connect(self.slot_dataset_reload)
@@ -1017,11 +997,11 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         显示"数据-横向合并"窗口
         """
         self.data_merge_horizontal = preprocess.DataMergeHorizontalForm()
-        self.data_merge_horizontal.listWidget_dataset.addItems(list(self.__all_dataset_name))
-        self.data_merge_horizontal.all_dataset = self.__all_dataset
-        self.data_merge_horizontal.all_dataset_name = self.__all_dataset_name
+        self.data_merge_horizontal.listWidget_dataset.addItems(list(self.data_manager.all_data_names))
+        self.data_merge_horizontal.data_manager = self.data_manager
+        self.data_merge_horizontal.all_dataset_name = self.data_manager.all_data_names
         self.data_merge_horizontal.listWidget_start.addItem(self.__current_dataset_name)
-        self.data_merge_vertical.current_dataset_name = self.__current_dataset_name
+        self.data_merge_horizontal.current_dataset_name = self.__current_dataset_name
         self.data_merge_horizontal.signal_data_change.connect(self.slot_dataset_reload)
         self.data_merge_horizontal.exec_()
 
@@ -1050,7 +1030,7 @@ class MyMainForm(QMainWindow, Ui_MainWindow):
         """
         self.data_missing_value = preprocess.DataMissingValueForm()
         self.data_missing_value.current_dataset = self.__current_dataset
-        self.data_missing_value.all_dataset = self.__all_dataset
+        self.data_missing_value.data_manager = self.data_manager
         self.data_missing_value.current_dataset_name = self.__current_dataset_name
         self.data_missing_value.current_dataset_columns = self.__current_dataset.columns
         self.data_missing_value.listWidget_var.addItems(list(self.__current_dataset.columns))
diff --git a/pyminer/pmstart.py b/pyminer/pmstart.py
index b2fc416237490862556a7dc942e7243ad81480d4..c89ad6d59ae579e4ab446cb1069da6a4b8b24c70 100644
--- a/pyminer/pmstart.py
+++ b/pyminer/pmstart.py
@@ -30,7 +30,7 @@ def boot():
     myWin.load_data(splash)
     pmutil._main_window = myWin
 
-    #myWin.data_import_file_test('class.csv')
+    myWin.data_import_file_test('class.csv')
 
     # 窗口美化设置
     # QssTools.set_qss_to_obj(root_dir + "/ui/source/qss/pyminer.qss", app)
diff --git a/pyminer/share/datahost/__init__.py b/pyminer/share/datahost/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..b15a7830fd6c0c3381a1efd99801ff3386a3eb28
--- /dev/null
+++ b/pyminer/share/datahost/__init__.py
@@ -0,0 +1 @@
+from .datamanager import DataManager
diff --git a/pyminer/share/datahost/datamanager.py b/pyminer/share/datahost/datamanager.py
new file mode 100644
index 0000000000000000000000000000000000000000..f78acb5474ada498c503e54af850c06d70908fb3
--- /dev/null
+++ b/pyminer/share/datahost/datamanager.py
@@ -0,0 +1,325 @@
+import time
+import warnings
+
+MAX_STEPS = 15
+import copy
+from typing import Dict
+
+
+class Data():
+    '''
+    这是一个数据对象，可以管理数据的历史。
+    支持的对象类型应当是有限的，比如dataframe,ndarray等。
+    目前使用的就是这个类。
+    '''
+    value = None
+    info = {}
+
+    def __init__(self, ini_value: object):
+        self.info = {}
+        self.set_data(ini_value)
+
+    def set_data(self, value: object):
+        '''
+        添加数据。
+        :param value:
+        :return:
+        '''
+        self.value = value
+        # self.update_info()
+
+    def get_data(self, copy_val=True) -> object:
+        '''
+        获取数据的值，采用当前的指针。
+        :param copy_val:
+            如果为True(默认)，就返回复制后的对象。反之返回引用。当需要修改对象的时候，请保持True。
+            特别的，不要使用类似如下的方式。这样会多次复制对象，从而导致不必要的开销：
+                for i in range(10):
+                    Data.get('a')[i]
+                可以使用如下方案：
+                for i in range(10):
+                    Data.get('a',copy=False)[i]
+                但还是推荐使用：
+                a = Data.get('a')
+                for i in range(10):
+                    a[i]
+        :return:object
+        '''
+        return self.value
+
+    def update_info(self):  # 目前逻辑是写死了的。
+        name = 'test_file'
+        path = '../class.csv'
+        create_time = '2017.9.1'  # self.info['create_time']
+        update_time = '时间戳：' + str(time.time())
+        row = '10'
+        col = '10'
+        remarks = ''
+        file_size = '123'
+        memory_usage = '123kb'
+        info = ''
+        self.set_info(name, path, create_time, update_time, row, col, remarks, file_size, memory_usage, info)
+
+    def set_info(self, dataset_name: str, path: str, create_time: str,
+                 update_time: str, row: str, col: str, remarks: str, file_size: str,
+                 memory_usage: str, info=''):
+        dataset_info = {"name": dataset_name,
+                        "path": path,
+                        "create_time": create_time,
+                        "update_time": update_time,
+                        "row": row,
+                        "col": col,
+                        "remarks": remarks,
+                        "file_size": file_size,
+                        "memory_usage": memory_usage,
+                        "info": info}
+        self.info = dataset_info
+
+
+class Data_With_Undo_Func():
+    '''
+    这是一个数据对象，可以管理数据的历史。
+    支持的对象类型应当是有限的，比如dataframe,ndarray等。
+    目前用不上这个类，因为这个比较复杂。
+    '''
+
+    def __init__(self, ini_value: object):
+        self.value_stack = []
+        self.stack_pointer = 0  # 指向起始位置的指针。以下代码注释中简称‘指针’
+        self.info = {}
+        self.set_data(ini_value)
+
+    def __len__(self):
+        return len(self.value_stack)
+
+    def get_latest(self, copy_val=True) -> object:
+        if copy_val:
+            return copy.copy(self.value_stack[-1])
+        return self.value_stack[-1]
+
+    def set_data(self, value: object):
+        '''
+        添加数据。
+        :param value:
+        :return:
+        '''
+        self.value_stack.append(value)
+        while len(self.value_stack) > MAX_STEPS:
+            self.value_stack.pop(0)
+        self.stack_pointer = len(self) - 1
+        # self.update_info()
+
+    def get_data(self, copy_val=True) -> object:
+        '''
+        获取数据的值，采用当前的指针。
+        :param copy_val:
+            如果为True(默认)，就返回复制后的对象。反之返回引用。当需要修改对象的时候，请保持True。
+            特别的，不要使用类似如下的方式。这样会多次复制对象，从而导致不必要的开销：
+                for i in range(10):
+                    Data.get('a')[i]
+                可以使用如下方案：
+                for i in range(10):
+                    Data.get('a',copy=False)[i]
+                但还是推荐使用：
+                a = Data.get('a')
+                for i in range(10):
+                    a[i]
+        :return:object
+        '''
+        index = self.stack_pointer
+        if copy_val:
+            return copy.copy(self.value_stack[index])
+        return self.value_stack[index]
+
+    def get_index(self) -> int:
+        return self.stack_pointer
+
+    def set_index(self, index: int):
+        if 0 <= index < len(self.value_stack):
+            self.stack_pointer = index
+
+    def update_info(self):  # 目前逻辑是写死了的。
+        name = 'test_file'
+        path = '../class.csv'
+        create_time = '2017.9.1'  # self.info['create_time']
+        update_time = '时间戳：' + str(time.time())
+        row = '10'
+        col = '10'
+        remarks = ''
+        file_size = '123'
+        memory_usage = '123kb'
+        info = ''
+        self.set_info(name, path, create_time, update_time, row, col, remarks, file_size, memory_usage, info)
+
+    def set_info(self, dataset_name: str, path: str, create_time: str,
+                 update_time: str, row: str, col: str, remarks: str, file_size: str,
+                 memory_usage: str, info=''):
+
+        dataset_info = {"name": dataset_name,
+                        "path": path,
+                        "create_time": create_time,
+                        "update_time": update_time,
+                        "row": row,
+                        "col": col,
+                        "remarks": remarks,
+                        "file_size": file_size,
+                        "memory_usage": memory_usage,
+                        "info": info}
+        self.info = dataset_info
+
+
+class DataManager():
+    '''
+    以下举例均默认data_manager = DataManager()
+    '''
+
+    def __init__(self):
+        self.vars: Dict[str, Data] = {}
+        self.recycle_bin: Dict[str, Data] = {}
+        self.current_data = None
+        # self.all_data_sets_info: Dict[str, dict] = {}  # 管理数据集的信息
+
+    @property
+    def all_data_names(self) -> set:
+        '''
+        调用方式：data_manager.all_data_names
+        可以代替__all_data_names
+        Returns:
+
+        '''
+        return {k for k in self.vars.keys()}
+
+    def get_info(self, name: str):
+        '''
+
+        Args:
+            name: 变量的名称
+
+        Returns:字典。返回变量的全部属性字典。比如get_info('class')['path'],就是返回名为‘class’的数据集中的‘path’属性。
+
+        '''
+        return self.vars[name].info
+
+    def set_data(self, name: str, value: object) -> None:
+        '''
+        设置信息。
+        比如说，set_data('a'),就是设置数据集a的值。
+        Args:
+            name:
+            value:
+
+        Returns:
+
+        '''
+        if name in self.vars.keys():
+            self.vars[name].set_data(value)
+        else:
+            self.vars[name] = Data(value)
+
+    def get_all_data_dic(self):
+        '''
+        获取所有数据，是一个名称对元素的字典。但是要注意，返回的值是一个Data对象，而不是变量的字典。
+        Returns:
+
+        '''
+        return self.vars
+
+    def get_data(self, name: str, copy_val: bool = False) -> object:
+        '''
+        获取名为name的data。如果copy_val是True，那么就将其设置为True之后再
+        Args:
+            name:
+            copy_val:
+
+        Returns:
+
+        '''
+        if name in self.vars.keys():
+            return self.vars[name].get_data(copy_val=copy_val)
+        else:
+            warnings.warn("Variable \'%s\' isn\'t exist." % name)
+
+    def get(self, name: str) -> object:
+        '''
+        等于get_data。
+        Args:
+            name:
+
+        Returns:
+
+        '''
+        return self.get_data(name)
+
+    def move_data_stack_pointer(self, name: str, step: int = 1):
+        '''
+        无效方法，暂时无用。等到引入撤销功能之后就用上了。
+        Args:
+            name:
+            step:
+
+        Returns:
+
+        '''
+        if name not in self.vars.keys():
+            return
+        var = self.vars[name]
+        pos = var.stack_pointer + step
+        if 0 <= pos < len(var):
+            var.stack_pointer = pos
+        elif pos < 0:
+            var.stack_pointer = 0
+            print('到达最初数据，不可再撤销！')
+        elif pos >= len(var):
+            var.stack_pointer = len(var) - 1
+            print('到达最新数据，不可再重做！')
+
+    def move_data_stack_pointer_to(self, name: str, pos: int = -1):
+        '''
+        暂时用不上的方法。
+        Args:
+            name:
+            pos:
+
+        Returns:
+
+        '''
+        if name not in self.vars.keys():
+            return
+        var = self.vars[name]
+        if pos < 0:
+            pos = len(var.value_stack) - pos
+
+        if 0 <= pos < len(var):
+            var.stack_pointer = pos
+        elif pos < 0:
+            var.stack_pointer = 0
+            print('到达最初数据，不可再撤销！')
+        elif pos >= len(var):
+            var.stack_pointer = len(var) - 1
+            print('到达最新数据，不可再重做！')
+
+    def delete_data(self, name: str) -> None:
+        '''删除数据，也就是移动到回收站。'''
+        if name in self.vars.keys():
+            self.recycle_bin[name] = self.vars[name]
+            self.vars.pop(name)
+        else:
+            warnings.warn("Variable \'%s\' isn\'t exist." % name)
+
+    def recover_data(self, name: str) -> None:
+        '''从回收站中恢复数据'''
+        if name in self.recycle_bin.keys():
+            self.vars[name] = self.recycle_bin[name]
+            self.recycle_bin.pop(name)
+        else:
+            warnings.warn("Variable \'%s\' isn\'t exist." % name)
+
+    def set_info(self, dataset_name: str, path: str, create_time: str,
+                 update_time: str, row: str, col: str, remarks: str, file_size: str,
+                 memory_usage: str, info=''):
+        '''设置信息'''
+
+        self.vars[dataset_name].set_info(dataset_name, path=path, create_time=create_time, update_time=update_time,
+                                         row=row, col=col, remarks=remarks, file_size=file_size,
+                                         memory_usage=memory_usage,
+                                         info=info)
diff --git a/pyminer/ui/base/widgets/controlpanel.py b/pyminer/ui/base/widgets/controlpanel.py
index 640de261e595c35bc8c86f6e332a342ab6a7a627..7f5bd876ebc2797d1d4bdfcf98bbffe10f6297b8 100644
--- a/pyminer/ui/base/widgets/controlpanel.py
+++ b/pyminer/ui/base/widgets/controlpanel.py
@@ -274,7 +274,7 @@ class PMPageData(QWidget):
 
         # 删除行
         self.btn_delete_row.clicked.connect(app.data_delete_row_display)
-        self.btn_delete_row.clicked.connect(app.data_delete_col_display)
+        self.btn_delete_column.clicked.connect(app.data_delete_col_display)
         # 纵向合并
 
         self.btn_data_merge_vertical.clicked.connect(app.data_merge_vertical_display)
diff --git a/pyminer/ui/base/widgets/generalwidgets/table/tableviews.py b/pyminer/ui/base/widgets/generalwidgets/table/tableview.py
similarity index 100%
rename from pyminer/ui/base/widgets/generalwidgets/table/tableviews.py
rename to pyminer/ui/base/widgets/generalwidgets/table/tableview.py
diff --git a/pyminer/ui/base/widgets/generalwidgets/table/tablewidgets.py b/pyminer/ui/base/widgets/generalwidgets/table/tablewidget.py
similarity index 100%
rename from pyminer/ui/base/widgets/generalwidgets/table/tablewidgets.py
rename to pyminer/ui/base/widgets/generalwidgets/table/tablewidget.py
diff --git a/pyminer/ui/base/widgets/generalwidgets/window/__init__.py b/pyminer/ui/base/widgets/generalwidgets/window/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6a2ecdc1ce8eaa0efad1c74ed2b9492e65c23f9
--- /dev/null
+++ b/pyminer/ui/base/widgets/generalwidgets/window/__init__.py
@@ -0,0 +1 @@
+from .dialog import DataProcessDialog
\ No newline at end of file
diff --git a/pyminer/ui/base/widgets/generalwidgets/window/dialog.py b/pyminer/ui/base/widgets/generalwidgets/window/dialog.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9f7515113b6aba3399228cdc42fa42b687eea71
--- /dev/null
+++ b/pyminer/ui/base/widgets/generalwidgets/window/dialog.py
@@ -0,0 +1,32 @@
+from PyQt5.QtWidgets import QDialog, QDesktopWidget
+from PyQt5.QtCore import Qt
+
+import webbrowser
+
+
+class DataProcessDialog(QDialog):
+    '''
+    用于数据处理的对话框。特点是按下esc之后会退出等。
+    '''
+
+    def keyPressEvent(self, e):
+        """
+        按键盘Escape退出当前窗口
+        @param e:
+        """
+        if e.key() == Qt.Key_Escape:
+            self.close()
+
+    def center(self):
+        screen = QDesktopWidget().screenGeometry()
+        size = self.geometry()
+        self.move(int((screen.width() - size.width()) / 2), int((screen.height() - size.height()) / 2))
+
+    def get_help(self):
+        """
+        打开帮助页面
+        """
+        try:
+            webbrowser.get('chrome').open_new_tab("http://www.py2cn.com")
+        except Exception as e:
+            webbrowser.open_new_tab("http://www.py2cn.com")