//1.c# 计算两个日期的天数
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;
}
//2.
标签：dateStart,end,c#,DateTime,util,start,dateEnd,方法 From： https://www.cnblogs.com/ixanq008/p/17130582.html