// This server can run on App Engine.
package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
)

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}
	http.HandleFunc("/", hello)

	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}

func hello(w http.ResponseWriter, r *http.Request) {
	w.Write([]byte("Hello, 世界"))
}