C# 两个时间相减

string beginTime = "2008/05/21 9:00";
string endTime = "2008/05/22 13:00";
DateTime beginTime1 = DateTime.Parse(beginTime);
DateTime endTime1 = DateTime.Parse(endTime);
TimeSpan midTime = endTime1 - beginTime1;
Console.WriteLine("时间间隔为{0}天零{1}小时。",midTime.Days,midTime.Hours);
Console.ReadKey();