📄 22.2.htm
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>颜色演示</title>
</head>
<body>
<center>
<form>
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<img width=50 height=50 src="blue.gif">
<br>
<br>
<INPUT type=button value="新颜色" onClick="newImage()">
</form>
</center>
</body>
<script language="javascript">
<!--
var imageArray=new Array(5);
imageArray[0]=new Image(50,50);
imageArray[0].src="white.gif";
imageArray[1]=new Image(50,50);
imageArray[1].src="black.gif";
imageArray[2]=new Image(50,50);
imageArray[2].src="red.gif";
imageArray[3]=new Image(50,50);
imageArray[3].src="green.gif";
imageArray[4]=new Image(50,50);
imageArray[4].src="blue.gif";
function newImage()
{
document.images[Math.round(49.5*Math.random())].src = imageArray[Math.round(4.5 * Math.random())].src
}
//-->
</script>
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