切换到国内源

# 替换brew.git:
 cd "$(brew --repo)"
# 中国科大:
 git remote set-url origin https://mirrors.ustc.edu.cn/brew.git
# 清华大学:
 git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git

# 替换homebrew-core.git:
 cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
# 中国科大:
 git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git
# 清华大学:
 git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git

# 替换homebrew-bottles:
# 中国科大:
#### .bash_profile
 echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profile
 source ~/.bash_profile  
 #### .zshrc
 echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.zshrc   
 source ~/.zshrc
# 清华大学:
 echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles' >> ~/.bash_profile
 source ~/.bash_profile
 
# 应用生效:
 brew update

切换到官方源

# 重置brew.git:
 cd "$(brew --repo)"
 git remote set-url origin https://github.com/Homebrew/brew.git

# 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