C#计算两个日期之间相差的天数

       private int DateDiff(DateTime dateStart, DateTime dateEnd)
        {
            DateTime start = Convert.ToDateTime(dateStart.ToShortDateString());
            DateTime end = Convert.ToDateTime(dateEnd.ToShortDateString());
            TimeSpan sp = end.Subtract(start);
            return sp.Days;
        } 

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转载自www.cnblogs.com/zhangzhiping35/p/10656316.html