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随机点名.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>学员点名程序</title>
<script type="text/javascript">

	var arr = ['索玉兵','陈浩','赵斌','索晓峰','韩治体','郭炳炳','连静鑫','索金华','宣亮','祁鹏晨','卓宝亮','茹文波','王文丽','王文军','张志锋','黄志成','吕星波','李静涛','卢少辉','王强','胡毅','孙涛','杨杰','刘星','杨利超','刘格','王雪陟','陈召','孙立','任小龙'];
	function run(){//随机抽取一名同学
		num = Math.floor(Math.random()*arr.length);
		document.getElementById('sname').innerHTML = arr[num];
		var c1 = Math.floor(Math.random()*120);
		var c2 = Math.floor(Math.random()*120);
		var c3 = Math.floor(Math.random()*120);
		document.getElementById('sname').style.color = "rgb("+c1+","+c2+","+c3+")"

	}
	window.onload = function(){
		document.getElementById('btn').onclick = function(){
			var auto_time = setInterval(run,100);//设置定时器
			setTimeout(function(){//清除定时器
				clearInterval(auto_time);
				// 删除同学
				arr.splice(num,1);
			},1000)
		}

	}

</script>
</head>

<body style="background:#ccc;">
	<div style="width:300px;height:100px;margin:0 auto;margin-top:100px;">
		<p id="sname" style="width:350px;height:60px;text-align:center;font-size:100px;font-weight:800;font-family:'叶根友刀锋黑草-企业版';letter-spacing:10px;">请点名</p>
		<input type="button" value='开始点名' id="btn" style="margin:0 auto;display:block;" />

	</div>


</body>
</html>