diff --git a/interfaces/kits/js/cloudfilesync/cloud_file_cache_core.cpp b/interfaces/kits/js/cloudfilesync/cloud_file_cache_core.cpp
index 494b1446a1e8d97b8f37816807040a0270d92d53..e95e0d42b97aade0656b3db8f7fabf56fb993a94 100644
--- a/interfaces/kits/js/cloudfilesync/cloud_file_cache_core.cpp
+++ b/interfaces/kits/js/cloudfilesync/cloud_file_cache_core.cpp
@@ -59,6 +59,7 @@ std::shared_ptr<CloudFileCacheCallbackImplAni> CloudFileCacheCore::GetCallbackIm
 
 FsResult<void> CloudFileCacheCore::DoStart(const string &uri)
 {
+    //123
     auto callbackImpl = GetCallbackImpl(PROGRESS, true);
     int32_t ret = callbackImpl->StartDownloadInner(uri, FieldKey::FIELDKEY_CONTENT);
     if (ret != E_OK) {