修改homebrew、homebrew-core、homebrew-cask地址：
echo $(brew --repo)
echo $(brew --repo homebrew/core)
echo $(brew --repo homebrew/cask)
git -C "$(brew --repo)" remote set-url origin https://mirrors.aliyun.com/homebrew/brew.git
git -C "$(brew --repo homebrew/core)" remote set-url origin https://mirrors.aliyun.com/homebrew/homebrew-core.git
git -C "$(brew --repo homebrew/cask)" remote set-url origin https://mirrors.aliyun.com/homebrew/homebrew-cask.git
更新homebrew
brew update
安装tesseract
brew install tesseract
安装简体中文库chi_sim.traineddata
下载页面：https://digi.bib.uni-mannheim.de/tesseract/tessdata_fast/
放到安装路径：
问题1：xz: undefined method `deny_network_access!’
Error: xz: undefined method `deny_network_access!' for Formulary::FormulaNamespace4b3a9a46cdd92f6d4f21491620738535::Xz:Class
解决：
brew upgrade xz
brew cleanup xz --prune=0