VB.NET根据年月获得总周数

 

    Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click        MsgBox("总周数：" & GetTotalWeeks(Me.monthid.Text))    End Sub    Private Function GetTotalWeeks(ByVal monthid As String) As Integer        Dim y, m As String        y = monthid.Substring(0, 4)        m = monthid.Substring(4)        Dim totalweeks As Integer        Dim FirstDayOfMonth As Date = New DateTime(y, m, 1)        Dim LastDayOfMonth As Date = New DateTime(y, m, Date.DaysInMonth(y, m))        Dim d As Date = FirstDayOfMonth        Dim ed(0) As Date        Dim j As Int16        For i As Int16 = 0 To Date.DaysInMonth(y, m) - 1            If d.DayOfWeek = DayOfWeek.Saturday Then                ReDim Preserve ed(j)                ed(j) = d                j = j + 1            End If            d = d.AddDays(1)        Next        For i As Int16 = 0 To ed.Length - 1            MsgBox(ed(i))        Next        totalweeks = ed.Length        If ed(ed.Length - 1) <= LastDayOfMonth Then            totalweeks = totalweeks + 1        End If        Return totalweeks    End Function

VB.NET根据年月获得总周数