ASP常用日期格式化函数 FormatDate()


            核心代码





<%

'功能:多功能日期格式化函数

'来源:http://jorkin.reallydo.com/article.asp?id=477



Function FormatDate(sDateTime, sReallyDo)

 Dim sJorkin

 sJorkin = GetLocale()

 If Not IsDate(sDateTime) Then sDateTime = Now()

 sDateTime = CDate(sDateTime)

 Select Case UCase(sReallyDo & "")

 Case "0", "1", "2", "3", "4"

  FormatDate = FormatDateTime(sDateTime, sReallyDo)

 Case "00"

  FormatDate = FormatDate(sDateTime, "YYYY-MM-DD hh:mm:ss")

 Case "01"

  FormatDate = FormatDate(sDateTime, "YYYY年MM月DD日")

 Case "02"

  FormatDate = FormatDate(sDateTime, "YYYY-MM-DD")

 Case "03"

  FormatDate = FormatDate(sDateTime, "hh:mm:ss")

 Case "04"

  FormatDate = FormatDate(sDateTime, "hh:mm")

 Case "ISO8601", "GOOGLE", "SITEMAP" '//ISO8601格式, 一般用于GoogleSiteMap, "+08:00" 为时区.

  FormatDate = FormatDate(sDateTime, "YYYY-MM-DDThh:mm:ss.000+08:00")

 Case "RFC822", "RSS", "FEED" '//RFC822格式, 一般用于RSS, "+0800" 为时区.

  SetLocale("en-gb")

  FormatDate = FormatDate(sDateTime, "ew, DD eMM YYYY hh:mm:ss +0800")

  SetLocale(sJorkin)

 Case "RND", "RAND", "RANDOMIZE" '//随机字符串

  Randomize

  sJorkin = Rnd()

  FormatDate = FormatDate(sDateTime, "YYYYMMDDhhmmss") & _

    Fix((9 * 10^6 -1) * sJorkin) + 10^6

 Case Else

  FormatDate = sReallyDo

  FormatDate = Replace(FormatDate, "YYYY", Year(sDateTime))

  FormatDate = Replace(FormatDate, "DD", Right("0" & Day(sDateTime), 2))

  FormatDate = Replace(FormatDate, "hh", Right("0" & Hour(sDateTime), 2))

  FormatDate = Replace(FormatDate, "mm", Right("0" & Minute(sDateTime), 2))

  FormatDate = Replace(FormatDate, "ss", Right("0" & Second(sDateTime), 2))

  FormatDate = Replace(FormatDate, "YY", Right(Year(sDateTime), 2))

  FormatDate = Replace(FormatDate, "D", Day(sDateTime))

  FormatDate = Replace(FormatDate, "h", Hour(sDateTime))

  FormatDate = Replace(FormatDate, "m", Minute(sDateTime))

  FormatDate = Replace(FormatDate, "s", Second(sDateTime))

  If InStr(1, FormatDate, "EW", 1) > 0 Then

  SetLocale("en-gb")

  FormatDate = Replace(FormatDate, "EW", UCase(WeekdayName(Weekday(sDateTime), False)))

  FormatDate = Replace(FormatDate, "eW", WeekdayName(Weekday(sDateTime), False))

  FormatDate = Replace(FormatDate, "Ew", UCase(WeekdayName(Weekday(sDateTime), True)))

  FormatDate = Replace(FormatDate, "ew", WeekdayName(Weekday(sDateTime), True))

  SetLocale(sJorkin)

  Else

  FormatDate = Replace(FormatDate, "W", WeekdayName(Weekday(sDateTime), False))

  FormatDate = Replace(FormatDate, "w", WeekdayName(Weekday(sDateTime), True))

  End If

  If InStr(1, FormatDate, "EMM", 1) > 0 Then

  SetLocale("en-gb")

  FormatDate = Replace(FormatDate, "EMM", MonthName(Month(sDateTime), False))

  FormatDate = Replace(FormatDate, "eMM", MonthName(Month(sDateTime), True))

  SetLocale(sJorkin)

  Else

  FormatDate = Replace(FormatDate, "MM", Right("0" & Month(sDateTime), 2))

  FormatDate = Replace(FormatDate, "M", Month(sDateTime))

  End If

 End Select

End Function

%>







用法如下：





<%

'将日期格式化为ISO8601格式

Response.Write(FormatDate("2008-03-06 08:03:06", "SITEMAP"))

'将日期格式化为RFC822格式

Response.Write(FormatDate("2008-03-06 08:03:06", "RSS"))

'将日期格式化为(英星期, 英月/日/年)

Response.Write(FormatDate(Now(), "eW, EMM/DD/YYYY"))

'将生成一个以年月日时分秒随机数的字符串

Response.Write(FormatDate(Now(), "RND"))

%>



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