From 280ed3d5557d66c99d082da4c561abca2f9d6917 Mon Sep 17 00:00:00 2001
From: yedajiang44 <602830483@qq.com>
Date: Thu, 4 Jul 2024 11:11:20 +0800
Subject: [PATCH] =?UTF-8?q?=E5=BA=8F=E5=88=97=E5=8C=96=E6=97=B6=E6=B6=88?=
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---
 src/JT808.Protocol/JT808Package.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/JT808.Protocol/JT808Package.cs b/src/JT808.Protocol/JT808Package.cs
index b84b5eb..b29b9d0 100644
--- a/src/JT808.Protocol/JT808Package.cs
+++ b/src/JT808.Protocol/JT808Package.cs
@@ -166,6 +166,7 @@ namespace JT808.Protocol
             writer.WriteStart();
             // 2.写入头部 //部分有带数据体的长度，那么先跳过写入头部部分
             //  2.1.消息ID
+            if (value.Header.MsgId == default) value.Header.MsgId = value.Bodies.MsgId;
             writer.WriteUInt16(value.Header.MsgId);
             //  2.2.消息体属性(包含消息体长度所以先跳过)
             writer.Skip(2, out int msgBodiesPropertyPosition);