red for timeout

goping/goping.go

@@ -123,6 +123,7 @@ func Ping(domain string, PS int) {
 			如果发送失败就丢包 ++
 		*/
 		if _, err := conn.Write(buffer.Bytes()); err != nil {
+			fmt.Printf("%s\n", red("timeout"))
 			dropPack++
 			time.Sleep(time.Second)
 			continue