1.使用中科大源
（1）替换默认源
第一步：替换brew.git
cd "$(brew --repo)" git remote set-url origin https://mirrors.ustc.edu.cn/brew.git
第二步：替换homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git cd brew update
（2）替换Homebrew Bottles源
Homebrew是OS X系统的一款开源的包管理器。出于节省时间的考虑，Homebrew默认从Homebrew Bottles源中下载二进制代码包安装。Homebrew Bottles是Homebrew提供的二进制代码包，目前镜像站收录了以下仓库：
homebrew/homebrew-core homebrew/homebrew-dupes homebrew/homebrew-games homebrew/homebrew-gui homebrew/homebrew-python homebrew/homebrew-php homebrew/homebrew-science homebrew/homebrew-versions homebrew/homebrew-x11
对于bash用户：
echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profile source ~/.bash_profile
对于zsh用户
echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.zshrc source ~/.zshrc
2.使用清华源
（1）替换默认源
第一步：替换现有上游
cd "$(brew --repo)" git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git cd brew update
第二步：使用homebrew-science或者homebrew-python
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-science" git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-science.git
或
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-python" git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-python.git cd brew update
（2）替换Homebrew Bottles源
echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles' >> ~/.bash_profile source ~/.bash_profile
3.在中科大源或清华源失效或宕机时可以切换回官方源
第一步：重置brew.git
cd "$(brew --repo)" git remote set-url origin https://github.com/Homebrew/brew.git
第二步：重置homebrew-core.git
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core" git remote set-url origin https://github.com/Homebrew/homebrew-core.git cd brew update
第三步：注释掉bash配置文件里的有关Homebrew Bottles即可恢复官方源。 重启bash或让bash重读配置文件。
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