update

main.go

@@ -1,9 +1,19 @@
 package main
 
+import (
+	"flag"
+	"strconv"
+)
+
 func main() {
 	r := Router()
 	r.LoadHTMLGlob("tmpl/*")
 	r.Static("/statics", "./statics")
 
-	r.Run(":88")
+	port := flag.Int("p", 88, "the port to listen on")
+
+	// 解析命令行参数
+	flag.Parse()
+
+	r.Run(":" + strconv.Itoa(*port))
 }