mac 安装brew

1. 终端下执行命令 /bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

2. 执行后会，提示下载镜像

3. 若存在旧版本则需进行删除

4. 若之前没安装git，则会终止Homebrew安装，弹出git安装提示，点击"安装"

5. 再次执行步骤1命令，安装过程中会执行一些脚本

6. 验证是否安装成功，执行：brew -v,出现版本表示安装成功

qiuxiannv@qiuxiannvdeMBP ~ % brew -v
Homebrew 3.1.7-42-gd45832b
Homebrew/homebrew-core (git revision 09d1a8b385; last commit 2021-05-15)
Homebrew/homebrew-cask (git revision c1dad4a5cf; last commit 2021-05-15)