怎样基于vs code建立golang开发环境？

我发现我的code目录下没有这个文件夹

我的tasks.json的配置是

{
    "version": "0.1.0",

    // The command is tsc. Assumes that tsc has been installed using npm install -g typescript
    "command": "go",

    // The command is a shell script
    "isShellCommand": true,

    // Show the output window only if unrecognized errors occur. 
    "showOutput": "silent",

    // args is the HelloWorld program to compile.
    "args": ["run","${file}"]
}

调试的方式 暂时我也没找到。。