package main

import (
	"fmt"
	"net/http"
)

func main() {
	// 绑定路由规则，执行的函数
	http.HandleFunc("/", indexHander)
	http.HandleFunc("/hello", helloHandler)
	// 启动服务
	http.ListenAndServe(":8000", nil)
}

func indexHander(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hello World")
}

func helloHandler(w http.ResponseWriter, r *http.Request) {
	for k, v := range r.Header {
		fmt.Fprintf(w, "Header[%q] = %q", k, v)
	}
}