0312 封包统一出口当字符串变量为null转为空字符串

hch

2020-10-14 f202d985b565eacdefd153cbb8f95534ba8e6aa0

 Core/NetworkPackage/GameNetPackBasic.cs

@@ -1044,6 +1044,10 @@
    /** 转换字符串为字节段，byte量定长型，不写入长度 */
    protected void WriteBytes(string vStr, NetDataType vType, int vShortLen)
    {
        if (vStr == null)
        {
            vStr = string.Empty;
        }
        try
        {
            byte[] vRst = StrEncoding.GetBytes(vStr);