Mac 安装brew时遇到curl: (7) Failed to

输入指令sudo gem install redis，再输入安装brew指令即可。

https://brew.sh/index_zh-cn{ # Homebrew }

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
将以上命令粘贴至终端。