切換到非root下$操作符仁热，打開命令行：
輸入
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
然后完成之后輸入密碼豌汇。
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Done with Command Line Tools (macOS Sierra version 10.12) for Xcode
Done.
==> /usr/bin/sudo /bin/rm -f /tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress
==> /usr/bin/sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools
==> Downloading and installing Homebrew...
remote: Counting objects: 98632, done.
Receiving objects: 15% (15678/98632), 3.78 MiB | 22.00 KiB/s
安裝速度如此慢手销，有點(diǎn)絕望的薄疚，lattern?
另外通過window 電腦登錄另外一個(gè)qq把網(wǎng)盤的東西發(fā)過來，由于是局域網(wǎng)麻蹋，所以妙傳跛溉，為毛用window下載，你懂的扮授，
速度快
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