brew 更新源

git remote -v

/usr/local/Homebrew
git remote set-url origin git://mirrors.tuna.tsinghua.edu.cn/homebrew.git
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core
git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git

清华镜像源
git://mirrors.tuna.tsinghua.edu.cn/homebrew.git
中科大镜像源
http://mirrors.ustc.edu.cn/homebrew.git

brew 更新源

原文：https://www.cnblogs.com/sanmubai/p/13160791.html