diff --git a/Samples/ResnetPicture/python/README.md b/Samples/ResnetPicture/python/README.md
index 076ba9625da6f62e76c4c2394905a2418e058978..85f74b8907e7b9297bec43f9b45c2c1bfdae9317 100644
--- a/Samples/ResnetPicture/python/README.md
+++ b/Samples/ResnetPicture/python/README.md
@@ -35,15 +35,7 @@
 
 1. 以HwHiAiUser用户登录开发板。
 
-2. 设置环境变量。
-
-   ```
-   # 配置程序编译依赖的头文件与库文件路径
-   export DDK_PATH=/usr/local/Ascend/ascend-toolkit/latest 
-   export NPU_HOST_LIB=$DDK_PATH/runtime/lib64/stub
-   ```
-
-3. 安装ACLLite库。
+2. 安装ACLLite库。
 
    参考[ACLLite仓](https://gitee.com/ascend/ACLLite)安装ACLLite库python版。
 
diff --git a/Samples/YOLOV5MultiInput/python/README.md b/Samples/YOLOV5MultiInput/python/README.md
index 48f6bd27f2cd3dd029b0aed842cc8e77384b137f..734b65f7a069461011966d3b3f890a71ffcfa85e 100644
--- a/Samples/YOLOV5MultiInput/python/README.md
+++ b/Samples/YOLOV5MultiInput/python/README.md
@@ -36,14 +36,10 @@
 
 1. 以HwHiAiUser用户登录开发板。
 
-2. 设置环境变量。
+2. 安装ACLLite库。
+
+   参考[ACLLite仓](https://gitee.com/ascend/ACLLite)安装ACLLite库python版。
 
-   ```
-   # 配置程序编译依赖的头文件与库文件路径
-   export DDK_PATH=/usr/local/Ascend/ascend-toolkit/latest 
-   export NPU_HOST_LIB=$DDK_PATH/runtime/lib64/stub
-   export PYTHONPATH=`pwd`/python:$PYTHONPATH
-   ```
 
 #### 运行样例
 
diff --git a/Samples/YOLOV5USBCamera/python/README.md b/Samples/YOLOV5USBCamera/python/README.md
index 58cd70a5e1b08782f42493e9b06b113fb54523cd..f7f14b91669a9fe49aa8e19bd703019debce8a1b 100644
--- a/Samples/YOLOV5USBCamera/python/README.md
+++ b/Samples/YOLOV5USBCamera/python/README.md
@@ -37,15 +37,7 @@
 
 2. 以HwHiAiUser用户登录开发板。
 
-3. 设置环境变量。
-
-   ```
-   # 配置程序编译依赖的头文件与库文件路径
-   export DDK_PATH=/usr/local/Ascend/ascend-toolkit/latest 
-   export NPU_HOST_LIB=$DDK_PATH/runtime/lib64/stub
-   ```
-
-4. 安装ACLLite库。
+3. 安装ACLLite库。
 
    参考[ACLLite仓](https://gitee.com/ascend/ACLLite)安装PyACLLite库。
 
diff --git a/Samples/YOLOV5Video/README.md b/Samples/YOLOV5Video/README.md
index 72d93fde3a07a8a79a555067a6a6b1091657bd3e..403f8c8cda684cd27bc7e1c509dc177e3da9afe3 100644
--- a/Samples/YOLOV5Video/README.md
+++ b/Samples/YOLOV5Video/README.md
@@ -37,15 +37,7 @@
 
 2. 以HwHiAiUser用户登录开发板。
 
-3. 设置环境变量。
-
-   ```
-   # 配置程序编译依赖的头文件与库文件路径
-   export DDK_PATH=/usr/local/Ascend/ascend-toolkit/latest 
-   export NPU_HOST_LIB=$DDK_PATH/runtime/lib64/stub
-   ```
-
-4. 安装ACLLite库。
+3. 安装ACLLite库。
 
    参考[ACLLite仓](https://gitee.com/ascend/ACLLite)安装PyACLLite库。
 
@@ -81,8 +73,8 @@
 
    ```
    cd ../data 
-   wget https://obs-9be7.obs.cn-east-2.myhuaweicloud.com/003_Atc_Models/yolov5s/test.mp4 --no-check-certificate
-   wget wget https://obs-9be7.obs.cn-east-2.myhuaweicloud.com/models/aclsample/dog1_1024_683.jpg --no-check-certificate
+   wget https://obs-9be7.obs.cn-east-2.myhuaweicloud.com/003_Atc_Models/yolov5s/test.h264 --no-check-certificate
+   wget https://obs-9be7.obs.cn-east-2.myhuaweicloud.com/models/aclsample/dog1_1024_683.jpg --no-check-certificate
    ```
 
    **注：**若需更换测试视频，则需自行准备测试视频，并将测试视频放到data目录下。
diff --git a/Samples/YOLOV5Video/src/YOLOV5Video.py b/Samples/YOLOV5Video/src/YOLOV5Video.py
index 29287304de990788b63d96d4dcafa46b0b19efe7..5b827ec508e3d20f1dfc5f3410c6cb51cd51f0ba 100644
--- a/Samples/YOLOV5Video/src/YOLOV5Video.py
+++ b/Samples/YOLOV5Video/src/YOLOV5Video.py
@@ -128,7 +128,7 @@ if __name__ == '__main__':
         path = "../data/dog1_1024_683.jpg"
         image_infer(path, model)
     elif mode == "video":
-        path = "../data/output.h264"
+        path = "../data/test.h264"
         video_infer(path, model)
     else:
         print('input mode is incorrect.')