这是手动安装的四步：
Click the Preferences > Browse Packages… menu
Browse up a folder and then into the Installed Packages/ folder
Download Package Control.sublime-package and copy it into the Installed Packages/ directory
Restart Sublime Text
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Package Control 安装成功的验证
按住Ctrl + shift + p，输入pci你能看到如下界面，就说明你Package Control 安装成功了！
