mac下flutter環境搭建

須要事先安裝homebrew：ruby -e "$(curl -fsSL --insecure raw.githubusercontent.com/Homebrew/in…)"

其餘的搭建過程看隔壁的文章：https://www.jianshu.com/p/b50a92afbef1

https://flutterchina.club/setup-macos/#%E5%AE%89%E8%A3%85-xcode

https://flutterchina.club/get-started/test-drive/

完畢後，來一個最佳實踐》hello world

https://segmentfault.com/a/1190000016602108