mac安装Homebrew

1.git clone Homebrew/brew ~/.linuxbrew/Homebrew（未安装git命令的话直接用浏览器下载：Homebrew/brew）

2.mkdir ~/.linuxbrew/bin

3.ln -s ~/.linuxbrew/Homebrew/bin/brew ~/.linuxbrew/bin

4.eval $(~/.linuxbrew/bin/brew shellenv)

原文：https://zhuanlan.zhihu.com/p/108988575