DateDiff 函数可用来决定两个日期之间所指定的时间间隔数目。例如,可以使用 DateDiff 来计算两个日期之间相隔几日,或计算从今天起到年底还有多少个星期。 为了计算 date1 与 date2 相差的日数,可以使用“一年的日数”(y) 或“日”(d)。当 interval 是“一周的日数”(w) 时,DateDiff 返回两日期间的周数。如...
Function calc(startDate As Date, endDate As Date) As String '--- '开始日期天数——结束日期天数 Dim sDay As Integer, eDay As Integer sDay = VBA.Day(startDate) eDay = VBA.Day(endDate) Dim dDiff As Long, mDiff As Long, yDiff As Long mDiff = VBA.DateDiff("m", startDate, endDate...
Function 本月天数(日期 As Date) As Byte 本月天数 = DateSerial(Year(日期), Month(日期) + 1, Day(日期)) - 日期 End Function Function 月末(日期 As Date) As Date 月末= DateSerial(Year(日期), Month(日期) + 1, 1) - 1 End Function Function 月初(日期 As Date) As Date 月初= 日期 ...
End Function 算出每个月的天数 一法: Dim a, b, c a = Year(Now()) b = Month(Now()) c = Format((a & "/" & b + 1 & "/1"), "###") - Format((a & "/" & b & "/1"), "###") 二法: DateDiff("d", Format(Date, "yyyy-mm-01"), Format(DateAdd("m", -1, Da...
微软的官方文档地址:DateDiff 函数 (Visual Basic for Applications) | Microsoft Docs 3.VBA求足岁的方法 通过上面第2点的说明,在VBA下面直接使用datediff来求足岁,是行不通的了。因此,定义如下的函数,解决这个问题。 Function Age(id As String) As Integer ...
Code Snippet 4 shows example usage of the theDateDifffunction: Code Snippet 4: Dim dat_today As Date Dim dat_tomorrow As Date dat_today = Date() dat_tomorrow = DateAdd(“d”,1,dat_today) Debug.Print DateDiff(“h”,dat_today,dat_tomorrow) ...
ACCESS-VBA编程第三章日期、时间函数2 第三章日期、时间函数2 日期函数示例 当天日期：=Date()当日：=Day(date)当月：=Month(date())当年：=Year(date())当季：=DatePart("q",Date())把日期大写 Function Date2Chinese(iDate)Dim num(10)Dim iYear Dim iMonth Dim iDay num(0) = "〇"num(1) = "...
2. 使用 VBA 计算年龄 如果你更喜欢使用 VBA 来计算年龄,可以在表单或报表的代码模块中添加一个函数。例如: Function CalculateAge(dob As Date) As Integer Dim today As Date today = Date CalculateAge = Year(today) - Year(dob) - IIf(Month(today) < Month(dob) Or (Month(today) = Month(dob)...
If DateDiff("d", Me.日期, Date) > 0 Then MsgBox "日期不能在当前日期之前" Exit Sub End If Else MsgBox "日期不能为空" Exit Sub End If End Sub Function IsFileExists(ByVal strFileName As String) As Boolean'判断文件是否存在 If Len(Dir(strFileName)) <> 0 Then ...
ACCESSVBA编程.控件:常量 控件 acBoundObjectFrame 绑定对象框 acCheckBox 复选框 acComboBox 组合框 acCommandButton 命令按钮 acCustomControl ActiveX