- 到/usr/local/目录下， and $ git status to see if homebrew is clean.
- if dirty, $ git reset –hard ， git clean -df
- 安装homebrow
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"替换国内源地址
/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"