Question

如何在C＃中获取与FoxPro函数Week(date, 2, 2)相同结果的星期日期？

无论使用哪个GetWeekOfYear，

CalendarWeekRule都没有给出相同的结果。

Answer 1

仅仅更改CalendarWeekRule是不够的，您还需要更改DayOfWeek。

在VFP中，Week（date，2,2）将Monday指定为FirstDayOfWeek。

试试这个：

DateTimeFormatInfo.CurrentInfo.Calendar.GetWeekOfYear(DateTime.Now, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);

编辑：看看这个：iso 8601 week of year in .net

Answer 2

Time Period Library for .NET的周类包括对ISO 8601周格式的支持：

public void CalendarWeekSample()
{
  DateTime testDate = new DateTime( 2007, 12, 31 );

  // .NET calendar week
  TimeCalendar calendar = new TimeCalendar();
  Console.WriteLine( "Calendar Week of {0}: {1}", testDate.ToShortDateString(),
                     new Week( testDate, calendar ).WeekOfYear );
  // > Calendar Week of 31.12.2007: 53

  // ISO 8601 calendar week
  TimeCalendar calendarIso8601 = new TimeCalendar(
    new TimeCalendarConfig { YearWeekType = YearWeekType.Iso8601 } );
  Console.WriteLine( "ISO 8601 Week of {0}: {1}", testDate.ToShortDateString(),
                     new Week( testDate, calendarIso8601 ).WeekOfYear );
  // > ISO 8601 Week of 31.12.2007: 1
} // CalendarWeekSample

什么是C＃函数，它提供与FoxPro Week（date，2,2）相同的结果？

2 个答案: