去运行app.go总是在后台运行

go1.8

How come the following always rund in the background? I have named the file server.go and is doing "go run server.go"

package main

import (
    "fmt"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hi there X, I love %s!", r.URL.Path[1:])
}

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8080", nil)
}

VS Code Launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "remotePath": "",
            "port": 2345,
            "host": "127.0.0.1",
            "program": "${workspaceRoot}",
            "env": {},
            "args": [],
            "showLog": true
        }
    ]
}

Update: I get this error in VS Code Terminal:

2017/04/07 16:41:41 debugger.go:257: created breakpoint: &api.Breakpoint{ID:1, Name:"", Addr:0x12063ef, File:"/Users/X/Documents/X/play/go/server.go", Line:9, FunctionName:"main.handler", Cond:"", Tracepoint:false, Goroutine:false, Stacktrace:0, Variables:[]string(nil), LoadArgs:(*api.LoadConfig)(nil), LoadLocals:(*api.LoadConfig)(nil), HitCount:map[string]uint64{}, TotalHitCount:0x0}
2017/04/07 16:41:41 debugger.go:412: continuing

Did you tried running your server using nohup?

nohup go run server.go &