📄 11-11.htm
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
<script language="javascript">
function chbgcolor(f){
for(i=0;i<f.color.length;i++){
if(f.color[i].checked==true){
document.bgColor = f.color[i].value;
break;
}
}
}
</script>
</head>
<body>
<form name="form1">
<fieldset>
<legend align="left">选择背景颜色</legend>
<input type="radio" name="color" value="red" checked>红色<br>
<input type="radio" name="color" value="blue">兰色<br>
<input type="radio" name="color" value="green">绿色<br>
<input type="radio" name="color" value="white">白色<br>
</fieldset>
<p>
<input type="button" value="改变背景颜色" onClick="chbgcolor(window.document.form1)"><br>
<fieldset >
<legend align="left">选择图书</legend>
<input type="radio" name="book" value="a">aaaa<br>
<input type="radio" name="book" value="b" checked>bbbbb<br>
</fieldset>
</form>
</body>
</html>
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