先官网上下载Flutter
https://flutter.cn/docs/get-started/install/macos#update-your-path
注意看是Interl 还是 Apple芯片的
把下载后的文件拖进你的/User/计算机名称目录下
然后配置PATH环境
ls -a
vim ~/.bash_prifile
open -e ~/.bash_prifile
//添加下面三行,保存
export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
export PATH=/Users/计算机名称/flutter/bin:$PATH //flutterSDK的路径替换一下
source ~/.bash_profile
open ~/.zshrc
vim ~/.zshrc
open ~/.bash_profile
open -e ~/.zshrc
surce ~/.zshrc
flutter -h
如果不能正常下载,就用终端cd到你的项目
执行 pub get
flutter pub get