Mac 下安装Homebrew以及laravel开发环境valet

1.安装Homebrew 1.获取install文件并编辑 sudo curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install >> brew_install 2.加#注释BREW_REPO这一行,并添加如下两行 #BREW_REPO = https://github.com/Homebrew/brew.freeze#修改前 BREW_REPO = git://mirrors.ustc.edu.cn/brew.git.freeze#修改后 CORE_TAP_REPO = git://mi