1.下载flutter，android studio，git
android studio下载地址：https://developer.android.google.cn/studio/ 然后一路next
git下载地址：https://git-scm.com/download/win 然后一路next
flutter下载地址：https://flutter.dev 或者 https://flutterchina.club/ 然后一路next
flutter下载完成解压：注意不要将flutter安装到需要一些高权限的路径如C:\Program Files\）
2.配置环境变量
打开解压后的flutter文件，找到bin文件，复制文件全路径，然后添加到uangjing变量里就可以了
PUB_HOSTED_URL https://pub.flutter-io.cn
FLUTTER_STORAGE_BASE_URL https://storage.flutter-io.cn
然后重启window就可以
3.使用flutter doctor 检测
找到解压的flutter文件位置，双击flutter_console.bat，控制台输入flutter doctor
5.
*报错
Error: The Flutter directory is not a clone of the GitHub project.
The flutter tool requires Git in order to operate properly;
to set up Flutter, run the following command:
git clone -b beta https://github.com/flutter/flutter.git
解决方法
把刚刚下载的Flutter安装包删掉，重新在想要安装的目录下运行git clone -b beta https://github.com/flutter/flutter.git
*报错
X Flutter plugin not installed; this adds Flutter specific functionality.
X Dart plugin not installed; this adds Dart specific functionality.
解决方法：
File-setting-plugin 添加dart ,flutter两个依赖
*报错
某些 Android 许可证不被接受。
解决方法：
根据flutter doctor的提示运行flutter doctor --android-licenses
然后全部y就可以了