一个日期转换函数代码,ASP代码库,德仔网

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【ASP】一个日期转换函数
作者: / 发布于2011/1/6/ 905
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<div class="code" twffan="done">Function FormatDate(byVal strDate,byVal strFormat)

' Accepts strDate as a valid date/time,
' strFormat as the output template.
' The function finds each item in the 
' template and replaces it with the 
' relevant information extracted from strDate.
' You are free to use this code provided the following line remains
' www.adopenstatic.com/resources/code/formatdate.asp

' Template items
' %m Month as a decimal no. 2
' %M Month as a padded decimal no. 02
' %B Full month name February
' %b Abbreviated month name Feb 
' %d Day of the month eg 23
' %D Padded day of the month eg 09
' %O Ordinal of day of month (eg st or rd or nd)
' %j Day of the year 54
' %Y Year with century 1998
' %y Year without century 98
' %w Weekday as integer (0 is Sunday)
' %a Abbreviated day name Fri
' %A Weekday Name Friday
' %H Hour in 24 hour format 24
' %h Hour in 12 hour format 12
' %N Minute as an integer 01
' %n Minute as optional if minute <> 00
' %S Second as an integer 55
' %P AM/PM Indicator PM

On Error Resume Next

Dim intPosItem
Dim int12HourPart
Dim str24HourPart
Dim strMinutePart
Dim strSecondPart
Dim strAMPM

' Insert Month Numbers
strFormat = Replace(strFormat, "%m", DatePart("m", strDate), 1, -1, vbBinaryCompare)

' Insert Padded Month Numbers
strFormat = Replace(strFormat, "%M", Right("0" & DatePart("m", strDate), 2), 1, -1, vbBinaryCompare)

' Insert non-Abbreviated Month Names
strFormat = Replace(strFormat, "%B", MonthName(DatePart("m", strDate), False), 1, -1, vbBinaryCompare)

' Insert Abbreviated Month Names
strFormat = Replace(strFormat, "%b", MonthName(DatePart("m", strDate), True), 1, -1, vbBinaryCompare)

' Insert Day Of Month
strFormat = Replace(strFormat, "%d", DatePart("d",strDate), 1, -1, vbBinaryCompare)

' Insert Padded Day Of Month
strFormat = Replace(strFormat, "%D", Right ("0" & DatePart("d",strDate), 2), 1, -1, vbBinaryCompare)

' Insert Day of Month Ordinal (eg st, th, or rd)
strFormat = Replace(strFormat, "%O", GetDayOrdinal(Day(strDate)), 1, -1, vbBinaryCompare)

' Insert Day of Year
strFormat = Replace(strFormat, "%j", DatePart("y",strDate), 1, -1, vbBinaryCompare)

' Insert Long Year (4 digit)
strFormat = Replace(strFormat, "%Y", DatePart("yyyy",strDate), 1, -1, vbBinaryCompare)

' Insert Short Year (2 digit)
strFormat = Replace(strFormat, "%y", Right(DatePart("yyyy",strDate),2), 1, -1, vbBinaryCompare)

' Insert Weekday as Integer (eg 0 = Sunday)
strFormat = Replace(strFormat, "%w", DatePart("w",strDate,1), 1, -1, vbBinaryCompare)

' Insert Abbreviated Weekday Name (eg Sun)
strFormat = Replace(strFormat, "%a", WeekDayName(DatePart("w",strDate,1), True), 1, -1, vbBinaryCompare)

' Insert non-Abbreviated Weekday Name
strFormat = Replace(strFormat, "%A", WeekDayName(DatePart("w",strDate,1), False), 1, -1, vbBinaryCompare)

' Insert Hour in 24hr format
str24HourPart = DatePart("h",strDate)
If Len(str24HourPart) < 2 then str24HourPart = "0" & str24HourPart
strFormat = Replace(strFormat, "%H", str24HourPart, 1, -1, vbBinaryCompare)

' Insert Hour in 12hr format
int12HourPart = DatePart("h",strDate) Mod 12
If int12HourPart = 0 then int12HourPart = 12
strFormat = Replace(strFormat, "%h", int12HourPart, 1, -1, vbBinaryCompare)

' Insert Minutes
strMinutePart = DatePart("n",strDate)
If Len(strMinutePart) < 2 then strMinutePart = "0" & strMinutePart
strFormat = Replace(strFormat, "%N", strMinutePart, 1, -1, vbBinaryCompare)

' Insert Optional Minutes
If CInt(strMinutePart) = 0 then
strFormat = Replace(strFormat, "%n", "", 1, -1, vbBinaryCompare)
Else
If CInt(strMinutePart) < 10 then strMinutePart = "0" & strMinutePart
strMinutePart = ":" & strMinutePart
strFormat = Replace(strFormat, "%n", strMinutePart, 1, -1, vbBinaryCompare)
End If

' Insert Seconds
strSecondPart = DatePart("s",strDate)
If Len(strSecondPart) < 2 then strSecondPart = "0" & strSecondPart
strFormat = Replace(strFormat, "%S", strSecondPart, 1, -1, vbBinaryCompare)

' Insert AM/PM indicator
If DatePart("h",strDate) >= 12 then
strAMPM = "PM"
Else
strAMPM = "AM"
End If

strFormat = Replace(strFormat, "%P", strAMPM, 1, -1, vbBinaryCompare)

FormatDate = strFormat

End Function

Function GetDayOrdinal( _
byVal intDay _
)

' Accepts a day of the month 
' as an integer and returns the 
' appropriate suffix
On Error Resume Next

Dim strOrd

Select Case intDay
Case 1, 21, 31
strOrd = "st"
Case 2, 22
strOrd = "nd"
Case 3, 23
strOrd = "rd"
Case Else
strOrd = "th"
End Select

GetDayOrdinal = strOrd

End Function</div>
</div>
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