package main
import(
    "net/http"
    "log"
)
func main(){//註冊某個函數專門響應某個路由"/"，函數簽名符合
    http.HandleFunc("/",func(w http.ResponseWriter,r *http.Request){
        w.Write([]byte("Hello,this is version 1!"))
    })
    http.HandleFunc("/bye",sayBye)
    log.Println("Starting server ... v1")
    log.Fatal(http.ListenAndServe(":4000",nil))
}
func sayBye( w http.ResponseWriter,r *http.Request){
    w.Write([]byte("Bye bye,this is version 1!"))
}
go run test.go
2018/07/09 14:32:08 Starting server ... v1
 

瀏覽器打開訪問：http://localhost:4000/

瀏覽器打開訪問：http://localhost:4000/bye

Go編程基礎4-Http服務器