安装privoxy
brew install privoxy
=> Auto-updated Homebrew!
Updated 2 taps (homebrew/cask and homebrew/services).
==> Installing dependencies for privoxy: pcre
==> Installing privoxy dependency: pcre
==> Downloading https://homebrew.bintray.com/bottles/pcre-8.43.catalina.bottle.tar.gz
==> Downloading from https://akamai.bintray.com/35/3517eab75bf5bdb7798414d0af2aaaaf43edd248abc960b008d89b0a0958d537?__gda__=exp=1584257346~hmac=8
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==> Pouring pcre-8.43.catalina.bottle.tar.gz原文：https://blog.51cto.com/rainbird/2480148