golang搭建web服务器
package main
import (
"net/http"
"fmt"
)
func sayHelloWorld(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello Wrold!") //这个写入到w的是输出到客户端的
}
func main() {
http.HandleFunc("/",sayHelloWorld)
http.ListenAndServe(":8899",nil)
}