修改udp socket 缓冲区大小，

wxr

2023-07-14 b015403721ddff6dd737e684424793342d636e6c

 HDL_ON/Entity/ResponseEntity/CityInfo.cs

@@ -7,6 +7,15 @@
        {
        }
        /// <summary>
        /// 手机GPS经度
        /// </summary>
        public string lon="0";
        /// <summary>
        /// 手机GPS纬度
        /// </summary>
        public string lat="0";

        /// <summary>
        /// 城市id
        /// </summary>
        public string cid = string.Empty;