构建环境镜像添加

README.md

@@ -160,6 +160,14 @@ Linux: Debian 12
 flutter pub get
 ```
 
+如果当前网络无法解析 `pub.dev`，先设置 Pub/Flutter 镜像：
+
+```powershell
+$env:PUB_HOSTED_URL="https://pub.flutter-io.cn"
+$env:FLUTTER_STORAGE_BASE_URL="https://storage.flutter-io.cn"
+flutter pub get
+```
+
 ### 运行项目
 
 ```bash
@@ -170,11 +178,11 @@ flutter run  # pdf 和 音视频会再构建过程中下载github上的依赖,
 
 ```bash
 # Android
-flutter build apk --release
+flutter build apk --release --no-pub
 # Linux
-flutter build -d linux --release
+flutter build -d linux --release --no-pub
 # windows
-flutter build -d windows --release
+flutter build -d windows --release --no-pub
 ```
 
 ---