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日期对象+倒计时跳转3-28
moonheart的博客
Original
805 people have browsed it

实例

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>javascript-日期对象|倒计时跳转</title>
	<style type="text/css">
		p{
			height: 50px;
			width: 300px;
			margin:100px auto;
		}
		span{
			display: inline-block;
			height: 50px;
			width: 50px;
			line-height: 50px;
			color: red;
			font-size: 18px;
			text-align: center;

		}
		button{
			width: 180px;
			height: 40px;
			text-align: center;
		}
	</style>
</head>
<body>
<button onclick="alert(getDates());">单击显示日期</button>
<button ondblclick="alert(getNowTimes());">双击显示时间</button>
<button onclick="setInterval('fnDetime()',1000);">倒计时变色并跳转</button>
<p>
	还剩<span>5</span>秒跳转至<a href="http://www.php.cn">中文网</a>
</p>
<script type="text/javascript">
	var d=new Date();//获取当前系统时间
	document.write(d);
	//2019-3-28 日期格式化输出
	function getDates(){
		var d=new Date();
		var year=d.getFullYear();//获取年份
		var month=d.getMonth()+1;//获取月份
		var day=d.getDate();
		return year+'-'+month+'-'+day;
	}
	//getDates();
	function getNowTimes(){
		var d=new Date();
		var h=d.getHours();//0~23的整数
		var m=d.getMinutes();//0~59分钟
		var s=d.getSeconds();//0~59秒钟
		m=m<10?'0'+m:m;
		s=s<10?'0'+s:s;
		return h+':'+m+':'+s;

	}
	//[案例]随机选择颜色,十六进制颜色
	function roundColor(){
		var bg='#'//背景色
		var r=Math.floor(Math.random()*10).toString()+Math.floor(Math.random()*10);
		var g=Math.floor(Math.random()*10).toString()+Math.floor(Math.random()*10);
		var b=Math.floor(Math.random()*10).toString()+Math.floor(Math.random()*10);
		bg+=r+g+b;
		document.getElementsByTagName('body')[0].style.background=bg;

	}
	//倒计时,5秒倒计时,跳转至PHP中文网

	var Espan=document.getElementsByTagName('span')[0];
	var i=4;
	function fnDetime(){//倒计时5秒,每1000毫秒更新一次
		if(i>0){
			Espan.innerHTML=i;
			roundColor();
			i--;
		}else{//倒计时结束,进行页面跳转
			window.location.href="http://www.php.cn";
		}

	}
	//setInterval("fnDetime()",1000);//定时刷新页面 1秒=1000毫秒;

</script>

</body>
</html>

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