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	<title>散人笔记 &#187; Math</title>
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		<title>利用js的Math方法实现一种摇晃的鼠标跟随效果</title>
		<link>http://www.uideas.cn/post/177.html</link>
		<comments>http://www.uideas.cn/post/177.html#comments</comments>
		<pubDate>Mon, 30 Nov 2009 14:16:41 +0000</pubDate>
		<dc:creator>kos</dc:creator>
				<category><![CDATA[JAVASCRIPT]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[setTimeout]]></category>
		<category><![CDATA[摇晃的鼠标跟随]]></category>

		<guid isPermaLink="false">http://www.uideas.cn/?p=177</guid>
		<description><![CDATA[　　也许这个东西没什么实用价值，但好耍是肯定的，看看下面的效果
<form enctype="application/x-www-form-urlencoded"><code>
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<div class="Nocontent"><textarea class="textarea" cols="20" rows="8">&#60;html&#62; &#60;head&#62; &#60;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&#62; &#60;title&#62;&#60;/title&#62; &#60;/head&#62; &#60;body style="overflow:hidden"&#62; &#60;img src="http://www.uideas.cn/download/block_1.gif" name="AD" id="AD" style=" position: absolute"&#62; &#60;p&#62;&#60;a href="http://www.uideas.cn/download/1.html"&#62;点击查看美女图片&#60;/a&#62;&#60;/p&#62; &#60;p&#62;&#38;nbsp;&#60;/p&#62; &#60;p&#62;&#60;a href="http://www.uideas.cn/download/1.html"&#62;点击查看美女图片&#60;/a&#62;&#60;/p&#62; &#60;p&#62;&#38;nbsp;&#60;/p&#62; &#60;p&#62;&#60;a href="http://www.uideas.cn/download/1.html"&#62;点击查看美女图片&#60;/a&#62;&#60;/p&#62; &#60;/body&#62; &#60;script language="javascript" type="text/javascript"&#62;   var ns=document.getElementById&#38;&#38;!document.all;     var AD = document.getElementById("AD"); var shakeX = 0,shakeY = 0; var stantX = 0,stantY = 0; var ADX = 0,ADY = 0; var ADW = AD.offsetWidth/2; var ADH = AD.offsetHeight/2;    function Ouille(){    	x = Math.round(stantX += (shakeX += ((ADX-stantX-shakeX)*1)/10));    	y = Math.round(stantY += (shakeY += ((ADY-stantY-shakeY)*1)/10));      	AD.style.left = x-ADW;      	AD.style.top = y-ADH;     	setTimeout("Ouille()",5);        	}     	   function momouse(obj){      	ADX=ns? obj.clientX: event.clientX;     	ADY=ns? obj.clientY: event.clientY; }  document.onmousemove=momouse; Ouille(); &#60;/script&#62; &#60;/html&#62; </textarea></div>
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			<content:encoded><![CDATA[<p>　　也许这个东西没什么实用价值，但好耍是肯定的，看看下面的效果</p>
<form enctype="application/x-www-form-urlencoded"><code></p>
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<div class="Nocontent"><textarea class="textarea" cols="20" rows="8">&lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&gt; &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body style="overflow:hidden"&gt; &lt;img src="http://www.uideas.cn/download/block_1.gif" name="AD" id="AD" style=" position: absolute"&gt; &lt;p&gt;&lt;a href="http://www.uideas.cn/download/1.html"&gt;点击查看美女图片&lt;/a&gt;&lt;/p&gt; &lt;p&gt;&amp;nbsp;&lt;/p&gt; &lt;p&gt;&lt;a href="http://www.uideas.cn/download/1.html"&gt;点击查看美女图片&lt;/a&gt;&lt;/p&gt; &lt;p&gt;&amp;nbsp;&lt;/p&gt; &lt;p&gt;&lt;a href="http://www.uideas.cn/download/1.html"&gt;点击查看美女图片&lt;/a&gt;&lt;/p&gt; &lt;/body&gt; &lt;script language="javascript" type="text/javascript"&gt;   var ns=document.getElementById&amp;&amp;!document.all;     var AD = document.getElementById("AD"); var shakeX = 0,shakeY = 0; var stantX = 0,stantY = 0; var ADX = 0,ADY = 0; var ADW = AD.offsetWidth/2; var ADH = AD.offsetHeight/2;    function Ouille(){    	x = Math.round(stantX += (shakeX += ((ADX-stantX-shakeX)*1)/10));    	y = Math.round(stantY += (shakeY += ((ADY-stantY-shakeY)*1)/10));      	AD.style.left = x-ADW;      	AD.style.top = y-ADH;     	setTimeout("Ouille()",5);        	}     	   function momouse(obj){      	ADX=ns? obj.clientX: event.clientX;     	ADY=ns? obj.clientY: event.clientY; }  document.onmousemove=momouse; Ouille(); &lt;/script&gt; &lt;/html&gt; </textarea></div>
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<p> </code></form>
<p>&nbsp;</p>
<p>　　其实在上面的代码中做点小手脚，你就可以看到不同的效果，也许你会用得着。<br />
比如把<br />
　　AD.style.left = x-ADW;<br />
　　AD.style.top = y-ADH;<br />
改成<br />
　　AD.style.left = x;<br />
　　AD.style.top = y;<br />
或其它的，就可以用到其它地方了！</p>
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