From c4f75adeb72dfd56360f7e5b2c32c6c6998f7337 Mon Sep 17 00:00:00 2001 From: cailong Date: Fri, 24 May 2019 15:16:40 +0800 Subject: [PATCH] =?UTF-8?q?=E8=AE=BAStringBuffer=E7=9A=84=E4=BD=BF?= =?UTF-8?q?=E7=94=A8?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- java/Append.java | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 java/Append.java diff --git a/java/Append.java b/java/Append.java new file mode 100644 index 0000000..fd1f0f2 --- /dev/null +++ b/java/Append.java @@ -0,0 +1,27 @@ +/** + * Create Time 2019/5/24 + * StringBuffer追加 如痴如醉的写法 + * @author cailong + **/ +public class Append { + public static void main(String[] ares){ + + StringBuffer sb = new StringBuffer(); + //这里都能理解 + sb.append(""); + for (int i = 0; i < 10; i++) { + //为什么到这里就要这样写???既然都用StringBuffer了 (这里省略集合遍历用i代替 意思能懂就行) + sb.append("" + + ""+i+"" + + ""+i+"" + + ""+i+"" + + ""+i+"" + + ""+i+"" + + "sjzs" + + ""+i+"" + + ""); + } + sb.append(""); + System.out.println(sb.toString()); + } +} -- Gitee