Function SundayCount(StartDate As Date, EndDate As Date) As Long
On Error GoTo Err_SundayCount:
Dim Days As Integer '区间天数
Dim FirstSunday As Date '第一个周日具体日期
Dim NextSunday As Date '下一个周日具体日期
Dim Myweekday As Integer
Dim i As Long
Dim j As Long
'确保日期都不为空，若为空则置为0
If Not IsNull(StartDate) And Not IsNull(EndDate) Then
'如果结束日期<开始日期，则为0
If EndDate >= StartDate Then
'如果天数大于7,则先确定第一个周日是哪个日期，再7天一加，直到大于结束日期
Days = EndDate - StartDate
' If Days > 7 Then
Myweekday = Weekday(StartDate) '算出是周几,星期天是1
If Myweekday > 1 Then
FirstSunday = StartDate + 8 - Myweekday
Else
FirstSunday = StartDate
End If
Debug.Print "最近的周日是: " & FirstSunday
NextSunday = FirstSunday + 7
i = 1
SundayCount = 1
For i = 1 To Days Step 7
Debug.Print "下一个周日是: " & NextSunday
If NextSunday > EndDate Then
If FirstSunday > EndDate Then
SundayCount = SundayCount - 1
End If
Debug.Print "周日数目是: " & SundayCount
Exit Function
End If
NextSunday = NextSunday + 7
i = i + 1
SundayCount = SundayCount + 1
Debug.Print "周日数目是: " & SundayCount
Next
Else
SundayCount = 0
End If
Else
SundayCount = 0
End If
Exit_SundayCount:
Exit Function
Err_SundayCount:
SundayCount = 0
Resume Exit_SundayCount
End Function
Sub Test()
Debug.Print SundayCount(#2/6/2005#, #2/25/2005#)
End Sub 作者: 竹笛 时间: 2006-1-3 08:40
抽空发个帖子，免得大家把偶忘了：）作者: YXH_YXH 时间: 2013-5-17 10:29
你好！我将不相关的<BR>去除后代入公式无效。请明示或发个示例共享。多谢！！！！作者: YXH_YXH 时间: 2013-5-17 10:32
Option Compare Database
Function SundayCount(StartDate As Date, EndDate As Date) As Long ‘'统计某个日期区间内星期天的个数的函数
On Error GoTo Err_SundayCount
Dim Days As Integer '区间天数
Dim FirstSunday As Date '第一个周日具体日期
Dim NextSunday As Date '下一个周日具体日期
Dim Myweekday As Integer
Dim i As Long
Dim j As Long '确保日期都不为空，若为空则置为0
If Not IsNull(StartDate) And Not IsNull(EndDate) Then '如果结束日期<开始日期，则为0
If EndDate >= StartDate Then '如果天数大于7,则先确定第一个周日是哪个日期，再7天一加，直到大于结束日期
Days = EndDate - StartDate
' If Days > 7 Then Myweekday = Weekday(StartDate) '算出是周几,星期天是1
If Myweekday > 1 Then FirstSunday = StartDate + 8 - Myweekday
Else
FirstSunday = StartDate
End If Debug.Print "最近的周日是: " & FirstSunday NextSunday = Fir
stSunday + 7 i = 1 SundayCount = 1 For i = 1 To Days Step 7 Debug.Print "下一个周日是: " & NextSunday
If NextSunday > EndDate Then
If FirstSunday > EndDate Then SundayCount = SundayCount - 1
End If
Debug.Print "周日数目是: " & amp; SundayCount
Exit Function
End If
NextSunday = NextSunday + 7 i = i + 1 SundayCount = SundayCount + 1 Debug.Print "周日数目是: " & SundayCount Next
Else
SundayCount = 0
End If
Else: SundayCount = 0
End If
Exit_SundayCount: Exit Function
Err_SundayCount: SundayCount = 0 Resume Exit_SundayCount
End Function
Sub Test() Debug.Print SundayCount(#2/6/2005#, #2/25/2005#)
End Sub