使用sublime text运行go程序，出现如下错误：MarGo: Missing required environment variables: GOROOT GOPATH

See the `Quirks` section of USAGE.md for info

解决方法：在sublime->preferenct->package settings->gosublime->settings-user中添加

{
    "env":
    {
        "GOPATH" : "your GOPATH settings",//此处为你的GOPATH路径，如我的为“/home/mygo”
        "GOROOT" : "your GOROOT settings"//此处为你的GOROOT路径，如我的为“/home/go”
    }
}