js仿百度有啊通栏展示效果实现代码
发布于 2017-06-30 06:24:38 | 148 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
百度有啊通栏展示大家并不陌生吧，下面与大家分享下具体的实现js代码，感兴趣的朋友可以参考下哈
效果图如下：
页面代码：
<!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=utf-8" />
<title>百度有啊通栏展示效果</title>
<style type="text/css">
body,div,dl,dt,dd,ul,li,h3{margin:0;padding:0;}
body{color:#333;font:12px/1.5 arial;}
li{list-style:none;}
a:link,a:visited,a:active{color:#333;text-decoration:none;}
a:hover{color:#F30;}
img{border:none;}
#box{width:740px;margin:10px auto;}
#container{position:relative;height:232px;background:#FCFCFC;}
#container .item{position:absolute;top:0;left:0;width:492px;height:230px;overflow:hidden;background:#FAFAFA;border:1px solid #ddd;z-index:1;opacity:1;}
#container .item .pic{float:left;width:210px;height:200px;display:inline;margin:15px;}
#container .item .pic img{width:210px;height:200px;vertical-align:top;}
#container .item .txt{float:left;width:250px;margin-top:12px;}
#container .item .txt dt{font-size:14px;font-weight:700;}
#container .item .txt .info{color:#999;}
#container .item .txt dd{height:24px;line-height:24px;}
#container .item .txt dd span{float:left;}
#container .item .txt .star{position:relative;float:left;height:12px;width:69px;margin:6px 0 0 5px;}
#container .item .txt .star .star_red{position:absolute;top:0;left:0;height:12px;width:69px;z-index:2;background:url(http://js.fgm.cc/learn/lesson10/img/youa/star.png) repeat-x scroll left top transparent;}
#container .item .txt .star .star_grey{background:url(http://js.fgm.cc/learn/lesson10/img/youa/star.png) repeat-x scroll left -15px transparent;height:12px;width:69px;}
#container .item .txt .pink,#container .item .txt .blue,#container .item .txt .green{color:#FFF;font-weight:700;margin-right:2px;background:#F66B5B;padding:0 5px;}
#container .item .txt .blue{background:#96BAE7;}
#container .item .txt .green{background:#9CDBC3;}
#container .item .txt .comment{width:232px;height:99px;margin-top:10px;background:#FFF;border:1px solid #EAEAEA;}
#container .item .txt .comment h3{font-size:12px;font-weight:400;height:24px;line-height:24px;border-bottom:1px solid #E9E9E9;padding:0 10px;}
#container .item .txt .comment .comment_list{width:220px;height:60px;overflow:hidden;margin:8px 0 0 10px;}
#container .item .txt .comment .comment_list ul{width:220px;}
#container .item .txt .comment .comment_list ul li{height:20px;line-height:20px;white-space:nowrap;}
#container .item .txt .comment .comment_list ul li b{color:#999;font-weight:400;}
#control{height:37px;text-align:center;background:url(http://js.fgm.cc/learn/lesson10/img/youa/bg.png) no-repeat;}
#control span{width:8px;height:8px;font-size:0;line-height:0;cursor:pointer;display:inline-block;background-color:#FEFEFE;border:1px solid #BCC1C5;margin:13px 2px 2px;}
#control span.active{background-color:#848484;border:1px solid #6E6E6E;}
</style>
<script type="text/javascript">
function Youa (obj)
{
this.obj = $(obj);
this.container = $("container");
this.control = $("control");
this.items = $$$("item", this.container);
this.iCenter = 2;
this.aSort = [];
this.timer = null;
this.oData = [
{left:0, zIndex:2, opacity:30},
{left:40, zIndex:3, opacity:60},
{left:124, zIndex:4, opacity:100},
{left:208, zIndex:3, opacity:60},
{left:246, zIndex:2, opacity:30},
{left:40, zIndex:0, opacity:0}
];
this.__create__()
};
Youa.prototype.__create__ = function ()
{
var that = this;
var oSpan = null;
var i = 0;
for (i = 0; i < that.items.length; i++)
{
that.items[i].number = i;
that.aSort[i] = that.items[i];
oSpan = document.createElement("span");
oSpan.number = i;
that.control.appendChild(oSpan)
}
for (i = 0; i < 2; i++) this.aSort.unshift(this.aSort.pop());
that.aSpan = $$("span", that.control);
that.control.onmouseover = function (ev)
{
var oEv = ev || event;
var oTarget = oEv.target || oEv.srcElement;
if (oTarget.tagName.toUpperCase() == "SPAN")
{
that.aSort.sort(function (a, b) {return a.number - b.number});
if (oTarget.number < that.iCenter)
{
for (i = 0; i < that.iCenter - oTarget.number; i++) that.aSort.unshift(that.aSort.pop());
that.__set__();
return false
}
else if (oTarget.number > that.iCenter)
{
for (i = 0; i < oTarget.number - that.iCenter; i++) that.aSort.push(that.aSort.shift());
that.__set__();
return false
}
else
{
that.__set__()
}
}
}
this.__set__();
this.__switch__();
this.__autoPlay__()
};
Youa.prototype.__set__ = function ()
{
var i = 0;
for (i = 0; i < this.aSort.length; i++) this.container.appendChild(this.aSort[i]);
for (i = 0; i < this.aSpan.length; i++) this.aSpan[i].className = "";
this.aSpan[this.aSort[this.iCenter].number].className = "active";
for (i = 0; i < this.aSort.length; i++)
{
this.aSort[i].index = i;
if (i < 5)
{
new Animate(this.aSort[i], this.oData[i]);
}
else
{
new Animate(this.aSort[i], this.oData[this.oData.length - 1])
}
}
};
Youa.prototype.__switch__ = function ()
{
var i = 0;
var that = this;
this.container.onclick = function (ev)
{
var oEv = ev || event;
var oTarget = oEv.target || oEv.srcElement;
var index = findItem(oTarget);
if (index < that.iCenter)
{
for (i = 0; i < that.iCenter - index; i++) that.aSort.unshift(that.aSort.pop());
that.__set__();
return false
}
else if (index > that.iCenter)
{
for (i = 0; i < index - that.iCenter; i++) that.aSort.push(that.aSort.shift());
that.__set__();
return false
}
function findItem (element)
{
return element.className == "item" ? element.index : arguments.callee(element.parentNode)
}
};
};
Youa.prototype.__autoPlay__ = function ()
{
var that = this;
that.timer = setInterval(function ()
{
that.aSort[3].click()
}, 3000);
that.obj.onmouseover = function ()
{
clearInterval(that.timer)
};
that.obj.onmouseout = function ()
{
that.timer = setInterval(function ()
{
that.aSort[3].click()
}, 3000)
}
};
function $ (id)
{
return typeof id === "string" ? document.getElementById(id) : id
};
function $$ (tagName, oParent)
{
return (oParent || document).getElementsByTagName(tagName)
};
function $$$ (className, element, tagName)
{
var i = 0;
var aClass = [];
var reClass = new RegExp("(^|//s)" + className + "(//s|$)");
var aElement = $$(tagName || "*", element || document);
for (i = 0; i < aElement.length; i++) reClass.test(aElement[i].className) && aClass.push(aElement[i]);
return aClass
};
function css (element, attr, value)
{
if (arguments.length == 2)
{
if (typeof arguments[1] === "string")
{
return element.currentStyle ? element.currentStyle[attr] : getComputedStyle(element, null)[attr]
}
else
{
for (var property in attr)
{
property == "opacity" ?
(element.style.filter = "alpha(opacity=" + attr[property] + ")", element.style.opacity = attr[property] / 100) :
element.style[property] = attr[property]
}
}
}
else if (arguments.length == 3)
{
switch (attr)
{
case "width":
case "height":
case "top":
case "left":
case "right":
case "bottom":
element.style[attr] = value + "px";
break;
case "opacity" :
element.style.filter = "alpha(opacity=" + value + ")";
element.style.opacity = value / 100;
break;
default :
element.style[attr] = value;
break
}
}
return element
};
function Animate (element, options, fnCallBack)
{
this.obj = $(element);
this.options = options;
this.__onEnd__ = fnCallBack;
this.__startMove__()
};
Animate.prototype.__startMove__ = function ()
{
var that = this;
clearInterval(that.obj.timer);
that.obj.timer = setInterval(function ()
{
that.__doMove__()
}, 30);
};
Animate.prototype.__doMove__ = function ()
{
var complete = true;
var property = null;
for (property in this.options)
{
var iCur = parseFloat(css(this.obj, property));
property == "opacity" && (iCur = parseInt(iCur.toFixed(2) * 100));
var iSpeed = (this.options[property] - iCur) / 5;
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
this.options[property] == iCur || (complete = false, css(this.obj, property, iSpeed + iCur))
}
complete && (clearInterval(this.obj.timer), this.__onEnd__ && this.__onEnd__.apply(this.obj))
};
window.onload = function ()
{
new Youa("box")
};
</script>
</head>
<body>
<div id="box">
<div id="container">
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/1.jpg" /></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">必图拳馆</a></dt>
<dd class="info">不要把自己困住 你需要释放！</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">过瘾</span><span class="blue">带劲</span><span class="green">有活力</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>thaifight：</b>是一个非常好的一个拳...</li>
<li><b>快乐小友：</b>散打课的实战机会挺多...</li>
<li><b>爱情赛车：</b>白天人很少，喜欢安静...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/2.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">北京「七田阳光」全脑教育培训中心</a></dt>
<dd class="info">点亮孩子智慧人生</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">亲切</span><span class="blue">耐心</span><span class="green">干净</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>Jcenter：</b>如此诚恳的教育机构 ...</li>
<li><b>citaslin：</b>孩子的进步很大</li>
<li><b>甲鱼爱媛媛：</b>七田阳光很注重品质，...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/3.jpg" /></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">慕纱莹雪婚纱礼服馆</a></dt>
<dd class="info">物超所值的性价比，尽在慕纱莹雪！</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">精致</span><span class="blue">做工好</span><span class="green">专业</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>小企鹅快跑：</b>这个周末去取了我定的...</li>
<li><b>月逢明时：</b>这家婚纱店的婚纱做工...</li>
<li><b>日历本丢了：</b>上周末去取了婚纱，婚...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/4.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">北京金三优装饰有限责任公司</a></dt>
<dd class="info">一站式服务让你省时、省力、省钱、省心</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">口碑好</span><span class="blue">规模很大</span><span class="green">讲信誉</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>紫婧之梦：</b>这家店不错哦！</li>
<li><b>gotometop：</b>装修工都还挺朴实的，...</li>
<li><b>libangcheng1：</b>这家公司还可以，去年...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/5.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">鸿喜族休闲俱乐部—潘家园店</a></dt>
<dd class="info">专注人类健康，打造财富传奇！</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">真好</span><span class="blue">专业</span><span class="green">手法好</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>永封de铁盒：</b>环境挺不错，灯光控制...</li>
<li><b>老冯爱国：</b>不错的地方，是个很有...</li>
<li><b>白云寺方丈：</b>我不会打台球，但朋友...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/6.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">北京心拓城拓展培训</a></dt>
<dd class="info">客户第一 执行有力 激情勤奋 简单团结</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">专业</span><span class="blue">安全</span><span class="green">积极</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>janice19891：</b>很负责任~</li>
<li><b>旺达是条鱼：</b>朋友参加过他们的拓展...</li>
<li><b>bjftxiaoniu：</b>吼吼，在这里看到他们...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/7.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">韩医生专业祛痘连锁机构北京直营店</a></dt>
<dd class="info">我们只祛痘 所以更专业</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">效果好</span><span class="blue">细心</span><span class="green">专业</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>天涯hehaijiao：</b>这家店很好，顾客很多...</li>
<li><b>爱神马geili：</b>我治疗了两天感觉的好...</li>
<li><b>天上的语言：</b>这几天已经看到明显效...</li>
</ul>
</div>
</div>
</div>
</div>
<div class="item">
<div class="pic">
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/8.jpg"></a>
</div>
<div class="txt">
<dl>
<dt><a href="javascript:;">罗曼卡婚纱摄影</a></dt>
<dd class="info">口碑好 性价比高 无额外消费</dd>
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd>
<dd><span>用户印象：</span><span class="pink">口碑好</span><span class="blue">很喜欢</span><span class="green">完美</span></dd>
</dl>
<div class="comment">
<h3>用户评价</h3>
<div class="comment_list">
<ul id="list">
<li><b>明确指出i：</b>拍的很不错，老妈都夸...</li>
<li><b>爱就一直走吧：</b>他们家服务态度好，衣...</li>
<li><b>爱过你me：</b>最后照片拍出来后朋友...</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div id="control"></div>
</div>
</body>
</html>
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