JS 实现消息滚动效果

版权声明:JiahaoZhang原创文章,转载请注明出处 https://blog.csdn.net/GrootBaby/article/details/82187928
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>js实现消息滚动效果</title>
<script src="http://libs.baidu.com/jquery/1.11.3/jquery.min.js"></script>
<style>
* {
	margin:0;
	padding:0;
}
.scroll-box {
	width:200px;
	height:200px;
	border:2px solid #000;
	margin:20px auto;
	overflow:hidden;
}
.scroll-box ul {
	list-style:none;
	width:100%;
	height:100%;
}
.scroll-box ul li {
	width:100%;
	height:40px;
	box-sizing:border-box;
	line-height:40px;
	text-align:left;
}
</style>
</head>
<body>
<div class="scroll-box">
  <ul>
    <li>1,课程html</li>
    <li>2,课程css</li>
    <li>3,课程js</li>
    <li>4,课程jquery</li>
    <li>5,课程html5</li>
    <li>6,课程css3</li>
    <li>7,课程php</li>
    <li>8,课程bootstrap</li>
    <li>9,课程apicloud</li>
  </ul>
</div>

<script>
$(function() {
    //获得当前<ul>
    var $uList = $(".scroll-box ul");
    var timer = null;
    //触摸清空定时器
    $uList.hover(function() {
        clearInterval(timer);
    },
    function() { //离开启动定时器
        timer = setInterval(function() {
            scrollList($uList);
        },
        1000);
    }).trigger("mouseleave"); //自动触发触摸事件
    //滚动动画
    function scrollList(obj) {
        //获得当前<li>的高度
        var scrollHeight = $("ul li:first").height();
        //滚动出一个<li>的高度
        $uList.stop().animate({
            marginTop: -scrollHeight
        },
        600,
        function() {
            //动画结束后,将当前<ul>marginTop置为初始值0状态,再将第一个<li>拼接到末尾。
            $uList.css({
                marginTop: 0
            }).find("li:first").appendTo($uList);
        });
    }
});
</script>

</body>
</html>

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转载自blog.csdn.net/GrootBaby/article/details/82187928