简单获取两个时间的时间差函数

 1 #region 时间差 d返回天数,h返回小时,m返回分钟,s返回秒
 2         public static int DateDiff(DateTime DateTime1, DateTime DateTime2, string strCase)
 3         {
 4             string dateDiff = null;
 5             try
 6             {
 7                 TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
 8                 TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
 9                 TimeSpan ts = ts1.Subtract(ts2).Duration();
10                 switch (strCase)
11                 {
12                     case "d": dateDiff = ts.Days.ToString();
13                         break;
14                     case "h": dateDiff = ts.Hours.ToString();
15                         break;
16                     case "m": dateDiff = ts.Minutes.ToString();
17                         break;
18                     case "s": dateDiff = ts.Seconds.ToString();
19                         break;
20                 }
21             }
22             catch
23             {
24             }
25             return Int32.Parse(dateDiff);
26         }
27         #endregion
使用方法：
DateDiff(DateTime.Now, time, "d");//差的天数