Mac电脑brew老安装失败终极解决办法

1. 找了好几天，终于找到解决办法了，难受
   — [https://discourse.brew.sh/t/i-have-problem-with-installation-please-help-me/2906/6]

git clone https://github.com/Homebrew/homebrew-core /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core --depth=1