本文实例讲述了js焦点文字滚动效果。分享给大家供大家参考。具体如下：效果描述：今天推荐的这个又是一个原生的js焦点图效果默认自动切换，也可以手动切换javascript代码采用函数式对象编程，也就是javascript编程中的Module模式基本用法很简单，主要特点有三：1、模块化，可重用2、封装了变量和function，和全局的命名空间不接触，不污染全局变量3、只暴露可用public方法，其他私有方法全部隐藏，确保js相互之间不会冲突运行效果图：-------------------查看效果-------------------小提示：浏览器中如果不能正常运行，可以尝试切换浏览模式。为大家分享的jQuery下拉美化搜索表单效果代码如下<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>纯js(不依赖现有框架)焦点文字滚动效果</title><style >*{margin:0;padding:0; list-style:none;}#slider{overflow:hidden;width:470px;height:150px;position:relative; margin:100px auto;}#slider .pics{width:470px;height:150px}#slider .pics li{height:150px;width:470px;float:left}#slider #nav {position:absolute;bottom:5px;right:5px;}#slider #nav li.nav{background:#F47500; color:#fff;}#slider #nav li{border:1px solid #f47500; color:#d94b01; cursor:pointer;background:#fff;font-size:12px; height:15px;width:15px;float:left;margin-left:4px;display:inline;text-align:center}</style></head><body><!--代码部分begin--><div id="slider"><ul class="pics"><li><img alt="js焦点图效果" src="images/01.jpg" /></li><li><img alt="js焦点图效果" src="images/02.jpg" /></li><li><img alt="js焦点图效果" src="images/03.jpg" /></li><li><img alt="js焦点图效果" src="images/04.jpg" /></li><li><img alt="js焦点图效果" src="images/05.jpg" /></li></ul><ul id="nav"><li onmouseover="setTimeout(function(){lanrenzhijia.slider.pos(0)},300)">1</li><li onmouseover="setTimeout(function(){lanrenzhijia.slider.pos(1)},300)">2</li><li onmouseover="setTimeout(function(){lanrenzhijia.slider.pos(2)},300)">3</li><li onmouseover="setTimeout(function(){lanrenzhijia.slider.pos(3)},300)">4</li><li onmouseover="setTimeout(function(){lanrenzhijia.slider.pos(4)},300)">5</li></ul></div><script>var lanrenzhijia = {}, H$ = function(id){return document.getElementById(id)}, H$$ = function(c,p){return p.getElementsByTagName(c)}lanrenzhijia.slider = function(){return{init:function(id,options){var ul = this.u = H$$("ul",H$(id))[0], li = H$$("li",ul); this.l=li.length; this.index = 0;if(options.navId&&options.curClass){this.nav = H$$("li",H$(options.navId)), this.c = options.curClass;}this.a=options.auto||0; this.v=options.vertical||0;H$(id).style.overflow = "hidden";H$(id).style.position = "relative";ul.style.position="absolute";if(this.v){ul.style.top=0; this.h=options.height||li[0].offsetHeight; ul.style.height=(this.l*this.h)+"px";}else{ul.style.left=0; this.w=options.width||li[0].offsetWidth; ul.style.width=(this.l*this.w)+"px";}this.pos(options.index||0,this.a?1:0);},pos:function(pos,a){clearInterval(this.u.posAnim); clearInterval(this.u.auto);var curPos=this.v?parseInt(this.u.style.top):parseInt(this.u.style.left),correctPos=this.v?pos*this.h:pos*this.w, direction = correctPos>Math.abs(curPos)?1:-1;correctPos*=-1; this.index = pos;if(this.nav){for(var i=0;i<this.l;i++){this.nav[i].className = i==pos?this.c:""}}this.u.posAnim = setInterval(function(){lanrenzhijia.slider.anim(correctPos,direction,a)},10);},anim:function(des,dir,a){var curPos=this.v?parseInt(this.u.style.top):parseInt(this.u.style.left);if(curPos == des){clearInterval(this.u.posAnim);if(a||this.a){lanrenzhijia.slider.auto()}}else{var v=curPos-Math.ceil(Math.abs(des-curPos)*.07)*dir+"px";this.v?this.u.style.top=v:this.u.style.left=v;}},auto:function(){this.u.auto=setInterval(function(){lanrenzhijia.slider.move(1,1)},this.a*1000)},move:function(n,a){var num=this.index+n, i=n==1?num==this.l?0:num:num<0?this.l-1:num; lanrenzhijia.slider.pos(i,a);}};}();</script><script>lanrenzhijia.slider.init("slider",{ auto:3,vertical:1,navId:"nav",curClass:"nav",index:0});</script><!--代码部分end--></body></html>以上就是为大家分享的js(不依赖现有框架)焦点文字滚动效果代码，希望大家可以喜欢。
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