减小字体 增大字体
] 源码如下<br>----------------------------------------------------------<br><html><br><script Language="javascript"><br>function a(x,y,color)<br>{document.write("<img border='0' style='position: absolute; left: "+(x+300)+"; top: "+(y+200)+";background-color: "+color+"' src='http://www.haosc.com/wytx/114/px.gif' width=1 height=1>")}<br></script><br><head><br><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><br><meta name="GENERATOR" content="Microsoft FrontPage 4.0"><br><meta name="ProgId" content="FrontPage.Editor.Document"><br><title>花瓣－www.51<a target="_blank" href="http://www.newasp.cn/" class="wordstyle">windows</a>.Net</title><br></head><br><br><body><br><script><br><br>for(t=1;t<=360;t++){<br>lo=200 * Math.sin(2 * (Math.PI / 180) * t);<br>x = lo * Math.cos((Math.PI / 180) * t);<br>y = lo * Math.sin((Math.PI / 180) * t); <br>a(x,y,"#000000");<br>lo=200 * Math.cos(2 * (Math.PI / 180) * t);<br>x = lo * Math.cos((Math.PI / 180) * t);<br>y = lo * Math.sin((Math.PI / 180) * t); <br>a(x,y,"#ff0000");<br>}<br></script><br></body><br></html> <br>
[提示：你可先按照下面代码提示修改 上面部分代码，再按运行，此处看到的演示不完全正确]
减小字体
增大字体
