route evaluated but not used

```go func route(w http.ResponseWriter, r *http.Request) { //设置路由 http.HandleFunc("/", home.Index) //首页 err := http.ListenAndServe(":80", nil) //设置监听的端口 if err != nil { fmt.Println(msg.Msg_maintenance) } } func Init() { route } ``` 报错 route evaluated but not used 怎么解决？