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VBScript DateAdd 函数

一个函数，返回已添加指定时间间隔的日期。

语法

DateAdd(interval,number,date)

参数说明

  • interval，必需参数。 它可以取以下值 −

    • d − day of the year.

    • m − month of the year

    • y − year of the year

    • yyyy − year

    • w − weekday

    • ww − week

    • q − quarter

    • h − hour

    • m − minute

    • s − second

  • number，必填参数。 它可以采用正参数和负参数。

  • date，必填参数。 表示添加间隔的日期的变体或文字。

示例

<!DOCTYPE html>
<html>
   <body>
      <script language = "vbscript" type = "text/vbscript">
         ' Positive Interal
         date1 = 01-Jan-2013
         document.write("Line 1 : " &DateAdd("yyyy",1,date1) & "<br />")
         document.write("Line 2 : " &DateAdd("q",1,date1) & "<br />")
         document.write("Line 3 : " &DateAdd("m",1,date1) & "<br />")
         document.write("Line 4 : " &DateAdd("y",1,date1) & "<br />")
         document.write("Line 5 : " &DateAdd("d",1,date1) & "<br />")
         
         document.write("Line 6 : " &DateAdd("w",1,date1) & "<br />")
         document.write("Line 7 : " &DateAdd("ww",1,date1) & "<br />")
         document.write("Line 8 : " &DateAdd("h",1,"01-Jan-2013 12:00:00") & "<br />")
         document.write("Line 9 : " &DateAdd("n",1,"01-Jan-2013 12:00:00") & "<br />")
         document.write("Line 10 : "&DateAdd("s",1,"01-Jan-2013 12:00:00") & "<br />")

         ' Negative Interval
         document.write("Line 11 : " &DateAdd("yyyy",-1,date1) & "<br />")
         document.write("Line 12 : " &DateAdd("q",-1,date1) & "<br />")
         document.write("Line 13 : " &DateAdd("m",-1,date1) & "<br />")
         document.write("Line 14 : " &DateAdd("y",-1,date1) & "<br />")
         document.write("Line 15 : " &DateAdd("d",-1,date1) & "<br />")
         
         document.write("Line 16 : " &DateAdd("w",-1,date1) & "<br />")
         document.write("Line 17 : " &DateAdd("ww",-1,date1) & "<br />")
         document.write("Line 18 : " &DateAdd("h",-1,"01-Jan-2013 12:00:00") & "<br />")
         document.write("Line 19 : " &DateAdd("n",-1,"01-Jan-2013 12:00:00") & "<br />")
         document.write("Line 20 : " &DateAdd("s",-1,"01-Jan-2013 12:00:00") & "<br />") 
      </script>
   </body>
</html>

当您将其另存为 .html 并在 Internet Explorer 中执行时，上述脚本将产生以下结果 −

Line 1 : 27/06/1895
Line 2 : 27/09/1894
Line 3 : 27/07/1894
Line 4 : 28/06/1894
Line 5 : 28/06/1894
Line 6 : 28/06/1894
Line 7 : 4/07/1894
Line 8 : 1/01/2013 1:00:00 PM
Line 9 : 1/01/2013 12:01:00 PM
Line 10 : 1/01/2013 12:00:01 PM
Line 11 : 27/06/1893
Line 12 : 27/03/1894
Line 13 : 27/05/1894
Line 14 : 26/06/1894
Line 15 : 26/06/1894
Line 16 : 26/06/1894
Line 17 : 20/06/1894
Line 18 : 1/01/2013 11:00:00 AM
Line 19 : 1/01/2013 11:59:00 AM
Line 20 : 1/01/2013 11:59:59 AM

vbscript_date.html

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