1.安装jdk
2.android studio下载地址 https://developer.android.google.cn/
安装完成后点击finish后,选择Do not import settings
3.flutter sdk下载地址 http://flutter.io/sdk-archive/#windows(https://github.com/flutter/flutter)
a.配置环境变量,将解压后的flutter目录下bin路径放到环境PATH中
b.直接解压使用,在命令行cmd输入flutter检验安装情况
c.