1、切换flutter channel
flutter channel dev
flutter upgrade
2、启用desktop开发支持
flutter config --enable-windows-desktop
flutter config --enable-macos-desktop
flutter config --enable-linux-desktop
3、检查环境
flutter doctor
4、创建flutter App
flutter create myapp
cd myapp
5、运行App
flutter run -d windows
flutter run -d macos
flutter run -d linux
5、Build a release app
flutter build windows
flutter build macos
flutter build linux
6、对已存在的App支持Desktop
flutter create --platforms=windows,macos,linux
参考:https://docs.flutter.dev/desktop
