main add serial udp

main.go

@@ -12,6 +12,7 @@ import (
 	"chain33-pai/pkg/util"
 	"net"
 	"time"
+	"chain33-pai/service/pai_service"
 )
 
 func init() {
@@ -85,16 +86,22 @@ func broadcast()  {
 	}
 	conn, err := net.DialUDP("udp", &laddr, &raddr)
 	if err != nil {
-		println(err.Error())
+		log.Println(err.Error())
 		return
 	}
+	var pai pai_service.Pai
+	send := "hello world"
+	ok := pai.GetConfig()
+	if ok {
+		send = pai.Serial
+	}
 
 	for {
-		_, err := conn.Write([]byte("hello world"))
+		_, err := conn.Write([]byte(send))
 		if err != nil{
 			fmt.Println(err)
 		}
-		log.Println("send hello world")
+		log.Println(send)
 		time.Sleep(time.Second)
 	}
 }
\ No newline at end of file