private void getOrderStatistic() { Data orderStatistic = ShardDb.getOrderAmount(DateTime.Today); if (!orderStatistic.Success) { this.Close(); return; } DataTable dt = orderStatistic.DataTable; labelOrderStatistic.Text = "今日订单金额:" + (dt.Rows[0].ItemArray[0].ToString().Length == 0 ? "0" : dt.Rows[0].ItemArray[0].ToString()) + " 实收金额:" + (dt.Rows[0].ItemArray[1].ToString().Length == 0 ? "0" : dt.Rows[0].ItemArray[1].ToString()); }