试了无数种教程，终于找到一个可以用的

参考教程

In your preferred Shell (bash / zsh / fish / etc), run this:
git -C $(brew --repo homebrew/core) checkout master
That will swich your brew from the “origin” branch to the “master” branch
From there, run this: brew install upx

git -C $(brew --repo homebrew/core) checkout master
brew install upx

验证安装
upx

安装成功！