Flutter 01——macOS配置Flutter环境

1. 下载Flutter SDK
2. 为flutter设置环境变量的，根据本机flutter sdk实际安装目录来设置。
   $ export PATH="$PATH:'pwd'/flutter/bin"
   找到flutter中bin文件夹的目录，例如：/Users/zlc/Documents/development/flutter/bin
   执行：$ export PATH=$PATH:/Users/zlc/Documents/development/flutter/bin
3. 输入flutter doctor命令
   

参考：https://flutter.io/docs/get-started/install/macos