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jquery仿QQ商城带左右按钮控制焦点图片切换滚动效果
简介复制代码 代码如下: jquery图片滚动仿QQ商城带左右按钮控制焦点图片切换滚动</</div>
<div class="news_infos"><div id="MyContent"><U>复制代码</U> 代码如下: <BR><!DOCTYPE html> <BR><html> <BR><head> <BR><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <BR><title>jquery图片滚动仿QQ商城带左右按钮控制焦点图片切换滚动</title> <BR><meta name="description" content="jquery图片特效制作仿腾讯QQ商城首页banner焦点图片轮播切换效果，带索引按钮控制和左右按钮控制图片切换" /> <BR><style type="text/css"> <BR>*{margin:0;padding:0;} <BR>body{font-size:12px;color:#222;font-family:Verdana,Arial,Helvetica,sans-serif;background:#f0f0f0;} <BR>.clearfix:after{content: ".";display: block;height: 0;clear: both;visibility: hidden;} <BR>.clearfix{zoom:1;} <BR>ul,li{list-style:none;} <BR>img{border:0;} <BR>.wrapper{width:800px;margin:0 auto;padding-bottom:50px;} <BR>h1{height:50px;line-height:50px;font-size:22px;font-weight:normal;font-family:"Microsoft YaHei",SimHei;margin-bottom:20px;} <BR>/* focus */ <BR>#focus{width:800px;height:280px;overflow:hidden;position:relative;} <BR>#focus ul{height:380px;position:absolute;} <BR>#focus ul li{float:left;width:800px;height:280px;overflow:hidden;position:relative;background:#000;} <BR>#focus ul li div{position:absolute;overflow:hidden;} <BR>#focus .btnBg{position:absolute;width:800px;height:20px;left:0;bottom:0;background:#000;} <BR>#focus .btn{position:absolute;width:780px;height:10px;padding:5px 10px;right:0;bottom:0;text-align:right;} <BR>#focus .btn span{display:inline-block;_display:inline;_zoom:1;width:25px;height:10px;_font-size:0;margin-left:5px;cursor:pointer;background:#fff;} <BR>#focus .btn span.on{background:#fff;} <BR>#focus .preNext{width:45px;height:100px;position:absolute;top:90px;background:url(img/sprite.png) no-repeat 0 0;cursor:pointer;} <BR>#focus .pre{left:0;} <BR>#focus .next{right:0;background-position:right top;} <BR></style> <BR><script type="text/javascript" src="/UploadFiles/2021-04-02/jquery.js"><script type="text/javascript"> <BR>$(function() { <BR>var sWidth = $("#focus").width(); //获取焦点图的宽度（显示面积） <BR>var len = $("#focus ul li").length; //获取焦点图个数 <BR>var index = 0; <BR>var picTimer; <br><br>//以下代码添加数字按钮和按钮后的半透明条，还有上一页、下一页两个按钮 <BR>var btn = "<div class='btnBg'></div><div class='btn'>"; <BR>for(var i=0; i < len; i++) { <BR>btn += "<span></span>"; <BR>} <BR>btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>"; <BR>$("#focus").append(btn); <BR>$("#focus .btnBg").css("opacity",0.5); <BR>//为小按钮添加鼠标滑入事件，以显示相应的内容 <BR>$("#focus .btn span").css("opacity",0.4).mouseover(function() { <BR>index = $("#focus .btn span").index(this); <BR>showPics(index); <BR>}).eq(0).trigger("mouseover"); <BR>//上一页、下一页按钮透明度处理 <BR>$("#focus .preNext").css("opacity",0.2).hover(function() { <BR>$(this).stop(true,false).animate({"opacity":"0.5"},300); <BR>},function() { <BR>$(this).stop(true,false).animate({"opacity":"0.2"},300); <BR>}); <BR>//上一页按钮 <BR>$("#focus .pre").click(function() { <BR>index -= 1; <BR>if(index == -1) {index = len - 1;} <BR>showPics(index); <BR>}); <BR>//下一页按钮 <BR>$("#focus .next").click(function() { <BR>index += 1; <BR>if(index == len) {index = 0;} <BR>showPics(index); <BR>}); <BR>//本例为左右滚动，即所有li元素都是在同一排向左浮动，所以这里需要计算出外围ul元素的宽度 <BR>$("#focus ul").css("width",sWidth * (len)); <br><br>//鼠标滑上焦点图时停止自动播放，滑出时开始自动播放 <BR>$("#focus").hover(function() { <BR>clearInterval(picTimer); <BR>},function() { <BR>picTimer = setInterval(function() { <BR>showPics(index); <BR>index++; <BR>if(index == len) {index = 0;} <BR>},4000); //此4000代表自动播放的间隔，单位：毫秒 <BR>}).trigger("mouseleave"); <br><br>//显示图片函数，根据接收的index值显示相应的内容 <BR>function showPics(index) { //普通切换 <BR>var nowLeft = -index*sWidth; //根据index值计算ul元素的left值 <BR>$("#focus ul").stop(true,false).animate({"left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position <br><br>$("#focus .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果 <BR>} <BR>}); <BR></script> <BR></head> <BR><body> <BR><div class="wrapper"> <BR><h1>jquery图片滚动仿QQ商城带左右按钮控制焦点图片切换滚动</h1> <br><br><div id="focus"> <BR><ul> <BR><li><a href="http://www.875.cn/" target="_blank"><img src="/UploadFiles/2021-04-02/01.jpg"><li><a href="http://www.875.cn/" target="_blank"><img src="/UploadFiles/2021-04-02/02.jpg"><li><a href="http://www.875.cn/" target="_blank"><img src="/UploadFiles/2021-04-02/03.jpg"><li><a href="http://www.875.cn/" target="_blank"><img src="/UploadFiles/2021-04-02/04.jpg"><li><a href="http://www.875.cn/" target="_blank"><img src="/UploadFiles/2021-04-02/05.jpg"></ul> <BR></div><!--focus end--> <br><br></div><!-- wrapper end --> <BR></body> <BR></html> <BR> <BR>效果图如下： <BR><a href="javascript:;" onclick="showimg('/UploadFiles/2021-04-02/201306271809204.gif?201352718942');"><img src="/UploadFiles/2021-04-02/201306271809204.gif?201352718942" alt="jquery仿QQ商城带左右按钮控制焦点图片切换滚动效果" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)" border="0"/></a></div>
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