2020-12-05 1.增加苹果推送处理。2.暂时通过推送实现，增加挤下线功能。

JLChen

2020-12-05 17355977e81bb1f93862b5201424f60af9d093cf

 HDL_ON/DAL/Server/HttpUtil.cs

@@ -470,7 +470,8 @@
        static string GetTimestamp()
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区
            return ((long)(DateTime.Now - startTime).TotalSeconds).ToString(); // 相差秒数
            return ((long)(DateTime.Now - startTime).TotalMilliseconds).ToString(); // 相差秒数
            //return ((long)(DateTime.Now - startTime).TotalSeconds).ToString(); // 相差秒数
        }

        /// <summary>