1、配置环境变量配置环境变量（国内用户）PUB_HOSTED_URL=https://pub.flutter-io.cn FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
2、获取flutter SDK选择一个目录我们假设是在D:\fluttersdk，在目录下右键选择Git Bash Here，然后运行git clone https://github.com/flutter/flutter.git命令获取SDK，完成后需要配置path环境变量D:\fluttersdk\flutter\bin
