下面的c#代码片段使用不同的格式显示日期和时间。
using C = System.Console; ... static void Main() { DateTime dateTime = DateTime.Now; C.WriteLine ("d = {0:d}", dateTime ); // mm/dd/yyyy C.WriteLine ("D = {0:D}", dateTime ); // month dd, yyyy C.WriteLine ("f = {0:f}", dateTime ); // day, month dd, yyyy hh:mm C.WriteLine ("F = {0:F}", dateTime ); // day, month dd, yyyy HH:mm:ss AM/PM C.WriteLine ("g = {0:g}", dateTime ); // mm/dd/yyyy HH:mm C.WriteLine ("G = {0:G}", dateTime ); // mm/dd/yyyy hh:mm:ss C.WriteLine ("M = {0:M}", dateTime ); // month dd C.WriteLine ("R = {0:R}", dateTime ); // ddd Month yyyy hh:mm:ss GMT C.WriteLine ("s = {0:s}", dateTime ); // yyyy-mm-dd hh:mm:ss (Sortable) C.WriteLine ("t = {0:t}", dateTime ); // hh:mm AM/PM C.WriteLine ("T = {0:T}", dateTime ); // hh:mm:ss AM/PM // yyyy-mm-dd hh:mm:ss (Sortable) C.WriteLine ("u = {0:u}", dateTime ); // day, month dd, yyyy hh:mm:ss AM/PM C.WriteLine ("U = {0:U}", dateTime ); // month, yyyy (March, 2006) C.WriteLine ("Y = {0:Y}", dateTime ); C.WriteLine ("Month = " + dateTime.Month); // month number (3) // day of week name (Friday) C.WriteLine ("Day Of Week = " + dateTime.DayOfWeek); // 24 hour time (16:12:11) C.WriteLine ("Time Of Day = " + dateTime.TimeOfDay); // (632769991310000000) C.WriteLine("DateTime.Ticks = " + dateTime.Ticks); // Ticks are the number of 100 nanosecond intervals since 01/01/0001 12:00am // Ticks are useful in elapsed time measurement. }
输出结果如下
d = 3/3/2006 D = Friday, March 03, 2006 f = Friday, March 03, 2006 4:20 PM F = Friday, March 03, 2006 4:20:26 PM g = 3/3/2006 4:20 PM G = 3/3/2006 4:20:26 PM M = March 03 R = Fri, 03 Mar 2006 16:20:26 GMT s = 2006-03-03T16:20:26 t = 4:20 PM T = 4:20:26 PM u = 2006-03-03 16:20:26Z U = Friday, March 03, 2006 10:20:26 PM Y = March, 2006 Month = 3 Day Of Week = Friday Time Of Day = 16:20:26.1406250 DateTime.Ticks = 632769996261406250