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[TOC] ## demo ``` package main import ( "fmt" "log" "net/http" "github.com/julienschmidt/httprouter" ) func Index(w http.ResponseWriter, r *http.Request, _ httprouter.Params) { fmt.Fprint(w, "Welcome!\n") } func Hello(w http.ResponseWriter, r *http.Request, ps httprouter.Params) { fmt.Fprintf(w, "hello, %s!\n", ps.ByName("name")) } func getuser(w http.ResponseWriter, r *http.Request, ps httprouter.Params) { uid := ps.ByName("uid") fmt.Fprintf(w, "you are get user %s", uid) } func modifyuser(w http.ResponseWriter, r *http.Request, ps httprouter.Params) { uid := ps.ByName("uid") fmt.Fprintf(w, "you are modify user %s", uid) } func deleteuser(w http.ResponseWriter, r *http.Request, ps httprouter.Params) { uid := ps.ByName("uid") fmt.Fprintf(w, "you are delete user %s", uid) } func adduser(w http.ResponseWriter, r *http.Request, ps httprouter.Params) { // uid := r.FormValue("uid") uid := ps.ByName("uid") fmt.Fprintf(w, "you are add user %s", uid) } func main() { router := httprouter.New() router.GET("/", Index) router.GET("/hello/:name", Hello) router.GET("/user/:uid", getuser) router.POST("/adduser/:uid", adduser) router.DELETE("/deluser/:uid", deleteuser) router.PUT("/moduser/:uid", modifyuser) log.Fatal(http.ListenAndServe(":8080", router)) } ```