先质疑一个:你的day字段只有月和日?是字符型字段?string sql="select part,type,timee,longg, why from stop ";
sql+="where day='" + DateTime.Now.Month.ToString() + "-" + DateTime.Now.Day.ToString() + "'";
sql+="where day='" + DateTime.Now.Month.ToString() + "-" + DateTime.Now.Day.ToString() + "'";
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