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<title>JavaScrip高级教程</title>
<strong>第十三页：cookie路径和域</strong>
<p>这是掌握cookie最后的一个障碍：缺省情况下cookie只能被在<br>
同一个Web服务器上同一个路径下设置了该cookie的网页读取．<br>
例如，如果在<br>
<a href="http://chimp.webmonkey.com/food/bananas/banana_puree.htm">"http://chimp.webmonkey.com/food/bananas/banana_puree.htm"</a><br>
有一段Javascript询问了用户的姓名，你可能需要在你的另一<br>
个网页例如主页中访问一个给定的名字．所以你必须设定该<br>
cookie的路径．路径"path"用于设置可以读取一个cookie的最<br>
顶层的目录．将cookie的路径设置为你的网页最顶层的目录可<br>
以让该该目录下的所有网页都能访问该cookie．</p>
<p>方法：在你的cookie中加入path=/; 如果你只想让"food" 目录<br>
中的网页可以使用该cookie，则你加入path=/food;．还有一点：<br>
有些网站有许多小的域名，例如网猴可能还在<br>
"chimp.webmonkey.com," "gorilla.webmonkey.com," 和<br>
"ape.webmonkey.com." 域名下有网页．缺省情况下只有<br>
"chimp.webmonkey.com" 域下的网页可以读取该cookie．如果<br>
你向让"webmonkey.com"下的所有机器都可以读取该cookie，我<br>
们必须在cookie中加入 "domain=webmonkey.com" ．<br>
<br>
要将一个cookie设置在<br>
<a href="http://chimp.webmonkey.com/food/bananas/banana_puree.htm">"http://chimp.webmonkey.com/food/bananas/banana_puree.htm"</a>
<br>
并且让所有网猴的网页都可以利用它，我们可以这样：<br>
function setCookie()<br>
<br>
{<br>
<br>
var<br>
the_name = prompt("What's your name?","");<br>
<br>
var the_cookie =<br>
"cookie_puss=" + escape(the_name) + ";" ;<br>
<br>
var the_cookie = the_cookie<br>
+ "path=/;";<br>
<br>
var the_cookie = the_cookie + "domain=webmonkey.com;";<br>
<br>
<br>
document.cookie =<br>
the_cookie;<br>
<br>
}<br>
<br>
现在我们已经学习完了cookie的内容．希望你能够多加练习。</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 color="#FF0000">第一页</font> <a href="day2_1.html">Javascript高级教程-第2日</a><br>
<font color="#FF0000">第二页</font> <a href="day2_2.html">神奇的字符串处理</a><br>
<font color="#FF0000">第三页</font> <a href="day2_3.html">子字符串</a><br>
<font color="#FF0000">第四页</font> <a href="day2_4.html">分割方法(splitting
method)</a><br>
<font color="#FF0000">第五页</font> <a href="day2_5.html">相关数组</a><br>
<font color="#FF0000">第六页</font> <a href="day2_6.html">相关数组的一个例子</a><br>
<font color="#FF0000">第七页</font> <a href="day2_7.html">介绍cookie</a><br>
<font color="#FF0000">第八页</font> <a href="day2_8.html">深入了解cookies</a><br>
<font color="#FF0000">第九页</font> <a href="day2_9.html">读取cookies</a><br>
<font color="#FF0000">第十页</font> <a href="day2_10.html">复杂的cookies读取</a><br>
<font color="#FF0000">第十一页</font> <a href="day2_11.html">读取和编写多重cookies</a><br>
<font color="#FF0000">第十二页</font> <a href="day2_12.html">再次深入了解cookies</a><br>
<font color="#FF0000">第十三页</font> cookie路径和域</p>
<p><font size="3">[<a href="day1_1.html">第1课</a>][第2课][<a href="day3_1.html">第3课</a>][<a href="day4_1.html">第4课</a>][<a href="day5_1.html">第5课</a>]</font></p>
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