如何在Visual Basic 6中查找给定日期的周数？

Question

有没有人在vb6中返回给定日期的周数的工作函数？

这曾经工作:

Dim W As Integer

W = Format(DateSerial(2010, 1, 1), "ww", vbMonday, vbFirstFourDays)

但是在Windows 8.1中,您现在可以获得"超出堆栈空间".

Answer 1

考虑到偏移量，答案有点复杂

以下功能应该可以很好地满足您的需要。只需向其传递一个有效的 Date 对象，它将返回一个周数的整数。

Private Function Week(dteValue As Date) As Integer
   'Monday is set as first day of week
   Dim lngDate As Long
   Dim intWeek As Integer

   'If january 1. is later then thursday, january 1. is not in week 1
   If Not Weekday("01/01/" & Year(dteValue), vbMonday) > 4 Then
      intWeek = 1
   Else
      intWeek = 0
   End If
   'Sets long-value for january 1.
   lngDate = CLng(CDate("01/01/" & Year(dteValue)))

   'Finds the first monday of year
   lngDate = lngDate + (8 - Weekday("01/01/" & Year(dteValue), vbMonday))
   'Increases week by week until set date is passed
   While Not lngDate > CLng(CDate(dteValue))
      intWeek = intWeek + 1
      lngDate = lngDate + 7
   Wend
   'If the date set is not in week 1, this finds latest week previous year
   If intWeek = 0 Then
      intWeek = Week("31/12/" & Year(dteValue) - 1)
   End If
   Week = intWeek
End Function

该代码由FreeVBCode.com提供 （包括向原作者提供属性的参考）。