📄 tutorial4_page10.html
字号:
<html>
<head>
<meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb_2312-80">
<meta NAME="GENERATOR" CONTENT="Microsoft FrontPage 3.0">
<title>Webmonkey: javascript: Thau's JavaScript Tutorial: Day 1</title>
<meta NAME="keywords"
CONTENT="javascript, hotwired, webmonkey, javascript, javascript tutorial, thau, dave thau, developer resource, developer, development, web
development, design, code, geek, warez, free, new, latest, news, tools,
info, tutorials, how-to, builder, web builder, pag">
<meta NAME="description"
CONTENT="Thau's JavaScript Tutorial: Day 1: Not only does Thau give the JavaScript skinny, but he'll have you writing your first script by the end of the day.">
<meta NAME="Template" CONTENT="E:\LIZEJUN\OFFICE\html.dot">
</head>
<body TEXT="#000000" LINK="#0000ff" VLINK="#800080" BGCOLOR="#ffffff">
<table CELLSPACING="0" BORDER="0" CELLPADDING="3" WIDTH="623">
<tr>
<td WIDTH="58%" VALIGN="MIDDLE"><strong><font FACE="System,??" LANG="ZH-CN"
COLOR="#ff0000">第</font><font FACE="宋体" LANG="ZH-CN" COLOR="#ff0000">10</font><font
FACE="System,??" LANG="ZH-CN" COLOR="#ff0000">页：数组在文件目标模块</font><font
FACE="宋体" LANG="ZH-CN" COLOR="#ff0000">(DOM)</font><font FACE="System,??" LANG="ZH-CN"
COLOR="#ff0000">中</font></strong><font FACE="System,??" LANG="ZH-CN"><br>
<!-- BYLINE --> </font><font FACE="System,??" LANG="ZH-CN" SIZE="2">作者：</font><a
HREF="mailto:thau@wired.com"><font FACE="宋体" LANG="ZH-CN" SIZE="2">Thau!</font></a><font
FACE="宋体" LANG="ZH-CN"> <!-- SEE ALSO LINKS --></font></td>
</tr>
<tr>
<td WIDTH="58%" VALIGN="TOP" BGCOLOR="#ffffff"><font FACE="System,??" LANG="ZH-CN"
SIZE="4">本例打算用图片交换来演示数组如何介入</font><font FACE="宋体"
LANG="ZH-CN" SIZE="4">DOM</font><font FACE="System,??" LANG="ZH-CN" SIZE="4">的。如果你用的是</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">IE3.0</font><font FACE="System,??" LANG="ZH-CN"
SIZE="4">或</font><font FACE="宋体" LANG="ZH-CN" SIZE="4">Netscape2.0</font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">，赶紧升级。试一下本例，看一下源码。</font><font
FACE="宋体" LANG="ZH-CN"><p>Here's the JavaScript that's in the </font><tt>onClick=""</tt><font
FACE="宋体" LANG="ZH-CN"> in the link: </p>
</font><pre>
var change=prompt('Change which image (0 or 1)?','');
window.document.images[change].src='three.jpg';
</pre>
<font FACE="System,??" LANG="ZH-CN" SIZE="4"><p>本例打算用图片交换来演示数组如何介入</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">DOM</font><font FACE="System,??" LANG="ZH-CN" SIZE="4">的。如果你用的是</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">IE3.0</font><font FACE="System,??" LANG="ZH-CN"
SIZE="4">或</font><font FACE="宋体" LANG="ZH-CN" SIZE="4">Netscape2.0</font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">，赶紧升级。试一下本例，看一下源码。</p>
</font><pre>
document.image_name.src = 'some_image.gif';
</pre>
<font FACE="System,??" LANG="ZH-CN" SIZE="4"><p>为了做这事，每个图片都需命名到。若你不知要交换的图片名，但却知道其在</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">HTML</font><font FACE="System,??" LANG="ZH-CN"
SIZE="4">页中的顺序。可以用它的</font><font FACE="宋体" LANG="ZH-CN" SIZE="4">DOM</font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">数来指定该图片。</p>
<p>一个</font><font FACE="宋体" LANG="ZH-CN" SIZE="4">HTML</font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">文件中的第一个图片是</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">document.images[0]</font><font FACE="System,??"
LANG="ZH-CN" SIZE="4">，第二个是</font><font FACE="宋体" LANG="ZH-CN" SIZE="4">document.images[1]</font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">，如此类推。若你想知道一个文件中有多少个图片，你可检查图片数组长度知道：</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">document.imageslength</font><font FACE="System,??"
LANG="ZH-CN" SIZE="4">。例如，你想改变你的网页中所有图形为一个</font><font
FACE="宋体" LANG="ZH-CN" SIZE="4">Spacer GLF</font><font FACE="System,??" LANG="ZH-CN"
SIZE="4">图片，你可以这样做：</p>
</font><pre>
for (loop = 0; loop < document.images.length; loop++)
{
document.images[loop].src = 'spacer.gif';
}
</pre>
<font FACE="System,??" LANG="ZH-CN"><p ALIGN="JUSTIFY">清楚了吧？</p>
<p ALIGN="JUSTIFY">好。下面我们准备三步是函数。函数学习中，我们要做一些练习，并有一些作业。</p>
<p ALIGN="JUSTIFY">进入<a HREF="tutorial4_page11.htm">函数</a></font><font
FACE="System,??" LANG="ZH-CN" SIZE="4">学习课程。</p>
<p><!-- PAGE X LINKS --><!-- this stuff checks if there are more pages in this story. if so, we'll
suck out the titles of those pages and build links. Right now, the maximum is
15 pages. --></font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">1</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4.htm"><font FACE="System,??" LANG="ZH-CN">第四课介绍</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- PAGE X LINKS --><!-- this stuff checks if there are more pages in this story. if so, we'll
suck out the titles of those pages and build links. Right now, the maximum is 15 pages. --><!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">2</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page2.htm"><font FACE="System,??" LANG="ZH-CN">循环介绍</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">3</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page3.htm"><font FACE="System,??" LANG="ZH-CN">循环的密码</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">4</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page4.htm"><font FACE="System,??" LANG="ZH-CN">再谈</font><font
FACE="宋体" LANG="ZH-CN">WHILE</font><font FACE="System,??" LANG="ZH-CN">循环</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">5</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page5.htm"><font FACE="宋体" LANG="ZH-CN">For </font><font
FACE="System,??" LANG="ZH-CN">循环</font></a><font FACE="System,??" LANG="ZH-CN"
SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">6</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page6.htm"><font FACE="System,??" LANG="ZH-CN">嵌套循环</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">7</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page7.htm"><font FACE="System,??" LANG="ZH-CN">循环练习</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">8</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page8.htm"><font FACE="System,??" LANG="ZH-CN">数组</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">9</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page9.htm"><font FACE="System,??" LANG="ZH-CN">数组和循环</font></a><font
FACE="System,??" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">10</font><font
FACE="System,??" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">:</font><a
HREF="tutorial4_page10.html"><font FACE="System,??" LANG="ZH-CN">文件目标模块中的数组</font></a><font
FACE="宋体" LANG="ZH-CN" SIZE="2"><br>
<font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">12</font><font
FACE="System,??" LANG="ZH-CN">页</font>: <a HREF="tutorial4_page12.html"><font
FACE="System,??" LANG="ZH-CN">无参数函数</font></a><font FACE="System,??"
LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">13</font><font
FACE="System,??" LANG="ZH-CN">页</font>: <a HREF="tutorial4_page13.htm"><font
FACE="System,??" LANG="ZH-CN">参数及返回值</font></a><font FACE="System,??"
LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,??" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">14</font><font
FACE="System,??" LANG="ZH-CN">页</font>: <a HREF="tutorial4_page14.htm"><font
FACE="System,??" LANG="ZH-CN">多于一个参数的函数</font></a><font FACE="System,??"
LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font></p>
<p><br>
<!-- AUTHOR TAGLINE --> </font></td>
</tr>
</table>
<font FACE="System,??" LANG="ZH-CN">
<p> </p>
</font>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -