diff --git a/AvoidTimeComsume/README.md b/AvoidTimeComsume/README.md
index 1d65bbcc0c49ab0a9ed61b66299f771d812e258b..f60de103b0d90130626be78cc041f18b63c6dda1 100644
--- a/AvoidTimeComsume/README.md
+++ b/AvoidTimeComsume/README.md
@@ -4,7 +4,8 @@
 本实例介绍开发过程中常见的冗余操作，常见的高频回调场景以及其他主线程优化思路。
 
 ## 预览效果
-![](screenshots/output-15_53_54.gif)
+<img src='screenshots/homePage.png' width=320>
+
 ## 工程目录
 ``` 
 ├──entry/src/main/ets                                   // 代码区
diff --git a/AvoidTimeComsume/screenshots/homePage.png b/AvoidTimeComsume/screenshots/homePage.png
new file mode 100644
index 0000000000000000000000000000000000000000..c1f73094e0cc410ab9742b6a9d7849a4c87a40a0
Binary files /dev/null and b/AvoidTimeComsume/screenshots/homePage.png differ
diff --git a/AvoidTimeComsume/screenshots/output-15_16_3.gif b/AvoidTimeComsume/screenshots/output-15_16_3.gif
deleted file mode 100644
index 8edf68e5b8a0b97a89b25f71dd0a5d641399d7b4..0000000000000000000000000000000000000000
Binary files a/AvoidTimeComsume/screenshots/output-15_16_3.gif and /dev/null differ
diff --git a/AvoidTimeComsume/screenshots/output-15_53_54.gif b/AvoidTimeComsume/screenshots/output-15_53_54.gif
deleted file mode 100644
index 42fc9bd5c53efbab0f801c76f336e4b440e5ecdb..0000000000000000000000000000000000000000
Binary files a/AvoidTimeComsume/screenshots/output-15_53_54.gif and /dev/null differ
diff --git a/ScreenFlickerSolution/entry/src/main/module.json5 b/ScreenFlickerSolution/entry/src/main/module.json5
index 52293d4e28ae59dd5a8c21b2ab62197f42fc6c61..4c19dba0ba707ff4dad4596a7736fff828e96473 100644
--- a/ScreenFlickerSolution/entry/src/main/module.json5
+++ b/ScreenFlickerSolution/entry/src/main/module.json5
@@ -21,8 +21,6 @@
     "mainElement": "EntryAbility",
     "deviceTypes": [
       "phone",
-      "tablet",
-      "2in1"
     ],
     "deliveryWithInstall": true,
     "installationFree": false,
diff --git a/ScreenFlickerSolution/entry/src/main/resources/base/element/string.json b/ScreenFlickerSolution/entry/src/main/resources/base/element/string.json
index 492413c6aa8205672c81c58387ba5c48bade8882..d9207c0e8c4cd40681ae7f979928a035a68a3a96 100644
--- a/ScreenFlickerSolution/entry/src/main/resources/base/element/string.json
+++ b/ScreenFlickerSolution/entry/src/main/resources/base/element/string.json
@@ -10,7 +10,7 @@
     },
     {
       "name": "EntryAbility_label",
-      "value": "label"
+      "value": "ScreenFlickerSolution"
     },
     {
       "name": "loading",
diff --git a/ScreenFlickerSolution/entry/src/main/resources/en_US/element/string.json b/ScreenFlickerSolution/entry/src/main/resources/en_US/element/string.json
index 69a6eaacf4bbdc53b19fd9295115d5ea1219b784..5e26f772718f093c919e0113986ce0e02ecdecba 100644
--- a/ScreenFlickerSolution/entry/src/main/resources/en_US/element/string.json
+++ b/ScreenFlickerSolution/entry/src/main/resources/en_US/element/string.json
@@ -10,7 +10,7 @@
     },
     {
       "name": "EntryAbility_label",
-      "value": "label"
+      "value": "ScreenFlickerSolution"
     },
     {
       "name": "screen_flicker_solution",
@@ -59,6 +59,10 @@
     {
       "name": "have_come_to_the_end",
       "value": "Have come to the end"
+    },
+    {
+      "name": "loading",
+      "value": "loading"
     }
   ]
 }
\ No newline at end of file
diff --git a/ScreenFlickerSolution/entry/src/main/resources/zh_CN/element/string.json b/ScreenFlickerSolution/entry/src/main/resources/zh_CN/element/string.json
index 12afcabcf19d1dfdcc2c89b1a0609e828185c55c..b3e0d6d11645628a87c3c19568f636e39e672150 100644
--- a/ScreenFlickerSolution/entry/src/main/resources/zh_CN/element/string.json
+++ b/ScreenFlickerSolution/entry/src/main/resources/zh_CN/element/string.json
@@ -10,7 +10,7 @@
     },
     {
       "name": "EntryAbility_label",
-      "value": "label"
+      "value": "ScreenFlickerSolution"
     },
     {
       "name": "screen_flicker_solution",
@@ -59,6 +59,10 @@
     {
       "name": "have_come_to_the_end",
       "value": "已经到底啦"
+    },
+    {
+      "name": "loading",
+      "value": "loading"
     }
   ]
 }
\ No newline at end of file
diff --git a/ScreenFlickerSolution/oh-package.json5 b/ScreenFlickerSolution/oh-package.json5
index bfea29eedfda5410fe56b72d8d4d5561e1d1c933..83f4aef884276775e8735b2ff25da28b46e270cd 100644
--- a/ScreenFlickerSolution/oh-package.json5
+++ b/ScreenFlickerSolution/oh-package.json5
@@ -19,8 +19,5 @@
   "dependencies": {
     "@ohos/pulltorefresh": "^2.0.5"
   },
-  "devDependencies": {
-    "@ohos/hypium": "1.0.19",
-    "@ohos/hamock": "1.0.0"
-  }
+  "devDependencies": {}
 }
diff --git a/VideoPlayerSample/.gitignore b/VideoPlayerSample/.gitignore
deleted file mode 100644
index 39953c9de2bfb57675c86c291dea2c32c54837e0..0000000000000000000000000000000000000000
--- a/VideoPlayerSample/.gitignore
+++ /dev/null
@@ -1,17 +0,0 @@
-# dir 不需要提交的目录
-/node_modules
-/oh_modules
-/.preview
-/build
-/.cxx
-/.test
-/.hvigor
-/.idea
-**/BuildProfile
-
-
-# file 不需要提交的文件
-local.properties
-oh-package-lock.json5
-/entry/build/
-/entry/oh_modules/
diff --git a/VideoPlayerSample/MediaService/.gitignore b/VideoPlayerSample/MediaService/.gitignore
deleted file mode 100644
index e2713a2779c5a3e0eb879efe6115455592caeea5..0000000000000000000000000000000000000000
--- a/VideoPlayerSample/MediaService/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
-/node_modules
-/oh_modules
-/.preview
-/build
-/.cxx
-/.test
\ No newline at end of file
diff --git a/VideoPlayerSample/README.md b/VideoPlayerSample/README.md
index 6fa9c72da1546e9fd2c7b51b7728276923bcbe0c..df8bda8ce6dcdc38cd03e62d9fe9c8a1b264878b 100644
--- a/VideoPlayerSample/README.md
+++ b/VideoPlayerSample/README.md
@@ -6,7 +6,7 @@
 
 ### 效果预览
 
-<img src="screenshots/videoPlayer.gif" width='320'>
+<img src="screenshots/video.png" width='320'>
 
 ### 使用说明
 
diff --git a/VideoPlayerSample/screenshots/videoPlayer.gif b/VideoPlayerSample/screenshots/videoPlayer.gif
deleted file mode 100644
index b264f13de1caa4bd48d631398841fa3514d4b863..0000000000000000000000000000000000000000
Binary files a/VideoPlayerSample/screenshots/videoPlayer.gif and /dev/null differ
diff --git a/VideoPlayerSample/screenshots/videoPlayer_EN.gif b/VideoPlayerSample/screenshots/videoPlayer_EN.gif
deleted file mode 100644
index d534be23b83737fca439292f690a088125edbb01..0000000000000000000000000000000000000000
Binary files a/VideoPlayerSample/screenshots/videoPlayer_EN.gif and /dev/null differ