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Home  >  Article  >  Web Front-end  >  How to set text to scroll continuously in jquery

How to set text to scroll continuously in jquery

coldplay.xixi
coldplay.xixiOriginal
2020-11-17 15:33:171939browse

How to set up uninterrupted scrolling of text in jquery: 1. Single-line scrolling, the code is [$(this).css({marginTop:"0px"}).find("li:first").appendTo( )]; 2. Multi-line scrolling, the code is [Scroll:function()].

How to set text to scroll continuously in jquery

How to set up uninterrupted scrolling of text in jquery:

1. Single-line scrolling

<!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" c />
<title>无标题文档</title>
<style type="text/css">
ul,li{margin:0;padding:0}
#scrollDiv{width:300px;height:25px;line-height:25px;border:#ccc 1px solid;overflow:hidden}
#scrollDiv li{height:25px;padding-left:10px;}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
function AutoScroll(obj){
        $(obj).find("ul:first").animate({
                marginTop:"-25px"
        },500,function(){
                $(this).css({marginTop:"0px"}).find("li:first").appendTo(this);
        });
}
$(document).ready(function(){
setInterval(&#39;AutoScroll("#scrollDiv")&#39;,1000)
});
</script>
</head>
<body>
<div id="scrollDiv">
<ul>
    <li>这是公告标题的第一行</li>
    <li>这是公告标题的第二行</li>
    <li>这是公告标题的第三行</li>
    <li>这是公告标题的第四行</li>
    <li>这是公告标题的第五行</li>
    <li>这是公告标题的第六行</li>
    <li>这是公告标题的第七行</li>
    <li>这是公告标题的第八行</li>
</ul>
</div>
</body>
</html>

2. Multi-line scrolling

<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
ul,li{margin:0;padding:0}
#scrollDiv{width:300px;height:100px;min-height:25px;line-height:25px;border:#ccc 1px solid;overflow:hidden}
#scrollDiv li{height:25px;padding-left:10px;}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
//滚动插件
(function($){
$.fn.extend({
        Scroll:function(opt,callback){
                //参数初始化
                if(!opt) var opt={};
                var _this=this.eq(0).find("ul:first");
                var        lineH=_this.find("li:first").height(), //获取行高
                        line=opt.line?parseInt(opt.line,10):parseInt(this.height()/lineH,10), //每次滚动的行数，默认为一屏，即父容器高度
                        speed=opt.speed?parseInt(opt.speed,10):500, //卷动速度，数值越大，速度越慢（毫秒）
                        timer=opt.timer?parseInt(opt.timer,10):3000; //滚动的时间间隔（毫秒）
                if(line==0) line=1;
                var upHeight=0-line*lineH;
                //滚动函数
                scrollUp=function(){
                        _this.animate({
                                marginTop:upHeight
                        },speed,function(){
                                for(i=1;i<=line;i++){
                                        _this.find("li:first").appendTo(_this);
                                }
                                _this.css({marginTop:0});
                        });
                }
                //鼠标事件绑定
                _this.hover(function(){
                        clearInterval(timerID);
                },function(){
                        timerID=setInterval("scrollUp()",timer);
                }).mouseout();
        }        
})
})(jQuery);
$(document).ready(function(){
        $("#scrollDiv").Scroll({line:4,speed:500,timer:1000});
});
</script>
</head>
<body>
<p>多行滚动演示：</p>
<div id="scrollDiv">
<ul>
    <li>这是公告标题的第一行</li>
    <li>这是公告标题的第二行</li>
    <li>这是公告标题的第三行</li>
    <li>这是公告标题的第四行</li>
    <li>这是公告标题的第五行</li>
    <li>这是公告标题的第六行</li>
    <li>这是公告标题的第七行</li>
    <li>这是公告标题的第八行</li>
</ul>
</div>
</body>
</html>

3. Multi-line scrolling that can be controlled forward and backward

<!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=gb2312" />
<title>无标题文档</title>
<style type="text/css">
ul,li{margin:0;padding:0}
#scrollDiv{width:300px;height:100px;min-height:25px;line-height:25px;border:#ccc 1px solid;overflow:hidden}
#scrollDiv li{height:25px;padding-left:10px;}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
(function($){
$.fn.extend({
        Scroll:function(opt,callback){
                //参数初始化
                if(!opt) var opt={};
                var _btnUp = $("#"+ opt.up);//Shawphy:向上按钮
                var _btnDown = $("#"+ opt.down);//Shawphy:向下按钮
                var timerID;
                var _this=this.eq(0).find("ul:first");
                var     lineH=_this.find("li:first").height(), //获取行高
                        line=opt.line?parseInt(opt.line,10):parseInt(this.height()/lineH,10), //每次滚动的行数，默认为一屏，即父容器高度
                        speed=opt.speed?parseInt(opt.speed,10):500; //卷动速度，数值越大，速度越慢（毫秒）
                        timer=opt.timer //?parseInt(opt.timer,10):3000; //滚动的时间间隔（毫秒）
                if(line==0) line=1;
                var upHeight=0-line*lineH;
                //滚动函数
                var scrollUp=function(){
                        _btnUp.unbind("click",scrollUp); //Shawphy:取消向上按钮的函数绑定
                        _this.animate({
                                marginTop:upHeight
                        },speed,function(){
                                for(i=1;i<=line;i++){
                                        _this.find("li:first").appendTo(_this);
                                }
                                _this.css({marginTop:0});
                                _btnUp.bind("click",scrollUp); //Shawphy:绑定向上按钮的点击事件
                        });
                }
                //Shawphy:向下翻页函数
                var scrollDown=function(){
                        _btnDown.unbind("click",scrollDown);
                        for(i=1;i<=line;i++){
                                _this.find("li:last").show().prependTo(_this);
                        }
                        _this.css({marginTop:upHeight});
                        _this.animate({
                                marginTop:0
                        },speed,function(){
                                _btnDown.bind("click",scrollDown);
                        });
                }
               //Shawphy:自动播放
                var autoPlay = function(){
                        if(timer)timerID = window.setInterval(scrollUp,timer);
                };
                var autoStop = function(){
                        if(timer)window.clearInterval(timerID);
                };
                 //鼠标事件绑定
                _this.hover(autoStop,autoPlay).mouseout();
                _btnUp.css("cursor","pointer").click( scrollUp ).hover(autoStop,autoPlay);//Shawphy:向上向下鼠标事件绑定
                _btnDown.css("cursor","pointer").click( scrollDown ).hover(autoStop,autoPlay);
        }       
})
})(jQuery);
$(document).ready(function(){
        $("#scrollDiv").Scroll({line:4,speed:500,timer:1000,up:"btn1",down:"btn2"});
});
</script>
</head>
<body>
<p>多行滚动演示：</p>
<div id="scrollDiv">
<ul>
    <li>这是公告标题的第一行</li>
    <li>这是公告标题的第二行</li>
    <li>这是公告标题的第三行</li>
    <li>这是公告标题的第四行</li>
    <li>这是公告标题的第五行</li>
    <li>这是公告标题的第六行</li>
    <li>这是公告标题的第七行</li>
    <li>这是公告标题的第八行</li>
</ul>
</div>
<span id="btn1">向前</span>  <span id="btn2">向后</span>
</body>
</html>

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