当前位置：首页 > 资讯 > 技术文档

javascript asp教程第十三课－－include文件

时间：2020-07-24 08:16 编辑：来源：阅读：
扫一扫，手机访问

摘要：javascript asp教程第十三课－－include文件

[b]Server Side Includes:[/b] Experienced JavaScript programmers know that code reuse is good. Experienced JavaScript programmers also know that JavaScript functions are data types. So, we should be able to store a JavaScript function inside a Session Variable or an Application Variable, right? Unfortunately, no. The way to reuse JavaScript functions across many pages is to use SSI: Server Side Includes.

<%@LANGUAGE="JavaScript"%>
<HTML>
<HEAD>
<!--#include file="script13a.asp"-->
<TITLE><% Response.Write( whatTimeIsIt() ) %> </TITLE>
</HEAD>
<BODY>
<%
Response.Write("The date and time are " + DateTime + "<BR><BR>\r")
Response.Write("Tomorrow's date is " + Tomorrow + "<BR><BR>\r")
Response.Write("Tomorrow will be a " + findDayOfWeek(Tomorrow) + "\r")
%>
</BODY>
</HTML>

[url=javascript:lesson(]Click Here[/url] to run the script in a new window. Look at the code for script13.asp. It calls for an include file via this line:  I'll let you see the include file in a moment. But first, I reprinted the client-side code directly below.

<HTML>
<HEAD>

<TITLE>10:57:20 AM </TITLE>
</HEAD>
<BODY>
The date and time are 4/11/2003 10:57:20 AM<BR><BR>
Tomorrow's date is 4/12/2003<BR><BR>
Tomorrow will be a Saturday

</BODY>
</HTML>

The final HTML code looks so nice and simple. You'd never know that the Date() object had been torn down and put back together. Below is the include file.

<%
function whatTimeIsIt()
 {
 var m=new Date()
 var minute=m.getMinutes()
 var second=m.getSeconds()
 var ampm=false

 if (minute >=0 && minute < 10)
  {
  minute=("0" + minute)
  }
 if (second >= 0 && second < 10 )
  {
  second=("0" + second)
  }
 var hours=m.getHours()
 if (hours > 12)
  {
  ampm=true
  hours=hours-12
  }
 if (hours==12)
  {
  ampm=true
  }
 if (hours == 0)
  {
  hours=hours+12
  ampm=false
  }
 if (ampm)
  {
  ampm=" pm"
  }
 else
  {
  ampm=" am"
  }
 var myTime=hours + ":" + minute + ":" + second + ampm
 return myTime;
 }
var DateTime = new Date();
var Month = (DateTime.getMonth() + 1) + "/";
var Day = DateTime.getDate() + "/";
var Year = DateTime.getFullYear();
var DateTime = Month + Day + Year + " " + whatTimeIsIt();

var Tomorrow=new Date()
Tomorrow.setDate(Tomorrow.getDate() + 1)
Month = (Tomorrow.getMonth() + 1) + "/"
Day = Tomorrow.getDate() + "/" 
Year = Tomorrow.getFullYear()
Tomorrow = Month + Day + Year

function findDayOfWeek(DateInQuestion)
 {

 // format for DateInQuestion is mm/dd/yyyy or m/d/yyyy 
 // and presumes the /'s are present. 

 myRegExp=/\d{1,2}\//
 myMonth=(parseInt(DateInQuestion.match(myRegExp)) -1)

 myRegExp=/\/\d{1,2}\//
 myDay=new String(DateInQuestion.match(myRegExp))
 myDay=parseInt( myDay.substring(1,myDay.length) )

 myRegExp=/\/\d{4}/
 myYear=new String(DateInQuestion.match(myRegExp))
 myYear=parseInt( myYear.substring(1,myYear.length) )

 DateInQuestion=new Date(myYear,myMonth,myDay)
 
 DayOfWeek=new Array
 DayOfWeek[0]="Sunday"
 DayOfWeek[1]="Monday"
 DayOfWeek[2]="Tuesday"
 DayOfWeek[3]="Wednesday"
 DayOfWeek[4]="Thursday"
 DayOfWeek[5]="Friday"
 DayOfWeek[6]="Saturday"
 DayOfWeek=DayOfWeek[DateInQuestion.getDay()]

 return DayOfWeek;
 }
%>

Imagine that you had 50 pages that all need whatTimeIsIt(), findDayOfWeek(), DateTime, and Tomorrow. You wouldn't want 50 different copies of these functions and variables. No, you would rather have a single copy of these items so that you could manipulate the single copy and execute your updates to all 50 pages at once. Now you know how to do that. [b]Moving Forward:[/b] This concludes Section 03. Next up Server and Error objects in Section 04.

全部评论(0)

上一篇：php防止网站被刷新的方法汇总
下一篇：asp快速开发方法之数据操作实例代码第1/3页

资讯排行榜
更多>>