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<td bgcolor="#ffff99" width="451">JavaScript教程 - 第三课</td>
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<td bgcolor="#FF6600" width="451"><a href="mailto:thau@wired.com">Thau</a></td>
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<td width="458" valign="top" align="left"><strong><small><small><br>
</small></small><font face="宋体" size="3">第六页：</font></strong><b><font size="2"
face="宋体">JavaScript</font></b><strong><font size="3">文件目标模块</font></strong>
<p><font size="3">既然你已经知道如何按你自己的意愿打开窗口，那么现在开始<br>
学习怎样在窗口中操作一些事。在此之前你要学习一下<br>
<font face="宋体">JavaScript</font>的文件目标模块（<font face="宋体">DOM</font>），首先，让我们学一点“目<br>
标导向编程”。</font></p>
<p><font size="3" face="宋体">概述目标导向编程</font></p>
<p><font size="3">目标导向编程 <font face="宋体">- </font>特别是<font
face="宋体">JavaScript</font>版本的 <font face="宋体">- </font>是比较容易理<br>
解的。其主旨是信息依据目标组织。<font face="宋体">JavaScript</font>其优越处之一<br>
在于其带有一内建式目标库。例如，一个窗口即一个对象。无<br>
论何时我提到一个缺省的<font face="宋体">JavaScript</font>库对象，我将使用大<br>
写（<font face="宋体">Window</font>）。特定的情况（特定的窗口）将用小写。</font></p>
<font size="3"><p>对象都有用以描述它们的属性。窗口对象的其中一些属性是它<br>
的名字，（即状态条上的字），窗口文件的<font face="宋体">URL</font>，及窗口文件<br>
本身。（其中包括单字，图形及窗口中的超文本链接。）</p>
<p>在<font face="宋体">JavaScript </font>中缺省的窗口对象为 <font
face="宋体">window.</font>这里你可了解你将<br>
如何获取缺省窗口的属性。</p>
<blockquote>
<pre>
<font face="宋体">var the_status = window.status;
</font></pre>
</blockquote>
<p>这是说：找到称为<font face="宋体">window </font>的<font face="宋体">status</font>属性，将之调用到变量<br>
<font face="宋体">the_status</font>中。窗口的<font face="宋体">status</font>特性包含了状态条上出现的词<br>
句。你也可事先设置它，像这样：</p>
<blockquote>
<pre><font face="宋体">
window.status = "I'm monkeying around!";
</font></font></pre>
</blockquote>
<p><font size="3">这是一个使用状态条的<a href="day3_7.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_7.html">例子</a>。</font></p>
<p align="left"><font face="宋体" size="3" color="#000000"><strong>JavaScript教程</strong></font><font
color="#FF0000" face="宋体" size="3"><br>
</font><font size="3" color="#FF0000">第</font><font color="#FF0000" face="宋体"
size="3">一</font><font size="3" color="#FF0000">页</font><font size="2" face="宋体"> </font><a
href="day3_6.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_6.html"><font size="3">第三天课程简介</font></a><font size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">二</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_2.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_2.html"><font size="3">窗口操作介绍</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">三</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_3.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_3.html"><font size="3"><strong>Javascript</strong>中的窗口操作</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">四</font><font size="3" color="#FF0000">页</font><a href="day3_4.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_4.html"> <font
size="2" face="宋体"><b>JavaScript</b></font><font size="3">中的窗口操作举例</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">五</font><font size="3" color="#FF0000">页</font><a href="day3_5.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_5.html"> <font
size="2" face="宋体"><b>Windows</b></font><font size="3">特性</font></a><font size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">六</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> <b>JavaScript</b></font><font size="3">文件目标模块</font><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">七</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_7.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_7.html"><font size="3">状态条的操作</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">八</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_8.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_8.html"><font size="3">窗口间的交流</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">九</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_9.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_9.html"><font size="3">再谈</font><font size="2"
face="宋体"><b>JavaScript DOM</b></a><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">十</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_10.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_10.html"><font size="3">窗口的其它特性</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">十一</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_11.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_11.html"><font size="3">再谈</font><font size="2"
face="宋体"><b>Window</b></font><font size="3">及</font><font size="2" face="宋体"><b>Frame</b></font><font
size="3">树杈结构</font></a><font size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">十二</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_12.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_12.html"><font size="3">自己动手操作</font></a><font
size="2"><br>
</font><font size="3" color="#FF0000">第</font><font face="宋体" size="3"
color="#FF0000">十三</font><font size="3" color="#FF0000">页</font><font size="2"
face="宋体"> </font><a href="day3_13.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_13.html"><font size="3">第三天复习</font></a></p>
<p align="left"><font face="宋体" size="3">[<a href="index.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/index.html">第1课</a>][<a
href="day2_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day2_1.html">第2课</a>][第3课][<a href="day4_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_1.html">第4课</a>][<a
href="day5_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day5_1.html">第5课</a>]</font></p>
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