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<title>JavaScrip高级教程</title>
 <strong>第十页：<font size="3" face="宋体">History对象</font></strong> 
      <p><font face="宋体" size="3">在Javascript对象结构中还有两项我们没有涉及，即Packages<br>
        和History。要了解Packages需要先学习Java，但History则<br>
        是JavaScript特有的而且非常有用。</font></p>
      <p><font face="宋体" size="3">History包含着你的浏览器访问过的URL的记录列表.History对<br>
        象使你能利用<tt><a href="backup/day3_10.htm#" onClick="window.history.back(); return false;">window.history.back()</a>和<br>
        window.history.forward()</tt>在列表各项记录中来回切换。back<br>
        的功能和你的浏览器上的back按钮的作用是一致的。 </font></p>
      <p><font face="宋体" size="3">这两种方法在帧（分割窗口）中非常有用，因为在帧中浏览器<br>
        的back按钮常会把你带到你不想去的网页。</font></p>
      <p><font face="宋体" size="3" color="#000000"><strong>JavaScript高级教程</strong></font><font color="#FF0000" face="宋体" size="3"><br>
        </font><font face="宋体"><font color="#FF0000">第一页</font> <a href="day3_10.html">Javascript高级教程 
        - 第三课</a><br>
        <font size="3"><font color="#FF0000">第二页</font> <a href="day3_2.html">如何给事件定时</a><br>
        <font color="#FF0000">第三页</font> <a href="day3_3.html">定时循环的概念</a><br>
        <font color="#FF0000">第四页</font> <a href="day3_4.html">定时循环的做法</a><br>
        <font color="#FF0000">第五页</font> <a href="day3_5.html">一个Javascript编写的时钟</a><br>
        <font color="#FF0000">第六页</font> <a href="day3_6.html">给定时器加入变量</a><br>
        <font color="#FF0000">第七页</font> <a href="day3_7.html">识别用户的浏览器</a><br>
        <font color="#FF0000">第八页</font> <a href="day3_8.html">如何识别用户的浏览器</a><br>
        <font color="#FF0000">第九页</font> <a href="day3_9.html">对象和方法的识别</a><br>
        <font color="#FF0000">第十页</font> History对象</font></font></p>
      <p><font size="3">[<a href="day1_1.html">第1课</a>][<a href="day2_1.html">第2课</a>][第3课][<a href="day4_1.html">第4课</a>][<a href="day5_1.html">第5课</a>]</font></p>
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