对于我这种菜鸟来讲，刚接触项目。叫我用插件，其实我说插件太臃肿不想用，倒不如说我是看不懂那些插件。。。- -（更愿意自己写点看得懂的代码，顺便也是个学习的过程）
所以自己花了些时间，自己来写了个demo， 效果很简单。（求轻喷-_-）
下面我就直接贴上代码了
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=1024" />
<meta name="description" content="" />
<meta name="Keywords" content="" />
<title>cfjc</title> <!--[if lt IE 9]><script type="text/javascript" src="http://www.ruifox.com/resouce/js/company/html5.js"></script><![endif]-->
<style type="text/css">
.left{float:left;}
.right{float:right;}
.clearfloat:after{display:block;clear:both;content:"";visibility:hidden;height:0}
.clearfloat{zoom:1}
body{margin:0; padding:0;}
ul{margin:0; padding:0;}
.wp {width:1000px; margin:0 auto;position:relative;}
li{list-style:none;}
a{text-decoration:none;}
a:hover{text-decoration:underline;}
.nobrder{border-right:none;}
#banner{width:100%; height:500px; position:relative;}
#banner ul {position:relative; min-width:4000px;height: 500px;z-index: 0}
.bnnwp {position:relative;overflow:hidden; width:100%; z-index:40;}
#banner ul li{float:left; min-width:1000px; height:500px;}
#banner ul .b1{background:#423134 url(../images/banner01.jpg) no-repeat center center;}
#banner ul .b2 {background:#45239A;}
#banner ul .b3 {background:#45123A;}
#banner ul .b4{background:#46193A;}
#banner .nextbtn{position:absolute; top:40%;right:50px; z-index:43}
#banner .prvebtn{position:absolute; top:40%;left:50px;z-index:43}
.nextbtn{width:22px; height:43px; background:url(../images/next_hover.png) no-repeat; cursor:pointer; font-size:28px; color:#fff;}
.nextbtn:hover{ background:url(../images/next.png) no-repeat;}
.prvebtn{width:22px; height:43px; background:url(../images/prev.png) no-repeat;cursor:pointer; font-size:28px; color:#fff;}
.prvebtn:hover{ background:url(../images/prev_hover.png) no-repeat;}
#bancontr{position:absolute;bottom:20px; right:100px;z-index:42;}
.heighlight_tip span{display:inline-block;*zoom:1; font-size:28px; color:#fff; *display:inline; width:14px;height:14px; border-radius:50%; text-indent:6px; color:#fff; background:#61676C; line-height:21px; margin-left:10px;cursor:pointer; behavior: url(../images/pie/PIE.htc);}
.heighlight_tip .current{background:#006ba4; no-repeat;}
</style>
</head>
<body>
<section id="banner">
<div class="bnnwp"><ul class="clearfloat">
<li style="background: url("http://chengfei-en.brandmarketingsite.com/uploadfile/2014/0106/20140106014754577.jpg") no-repeat center "></li>
<li style="background: url("http://chengfei-en.brandmarketingsite.com/uploadfile/2014/0106/20140106041757808.jpg") no-repeat center"></li>
<li style="background: url("http://chengfei-en.brandmarketingsite.com/uploadfile/2014/0106/20140106041812272.jpg") no-repeat center"></li>
<li style="background: url("http://chengfei-en.brandmarketingsite.com/uploadfile/2014/0106/20140106041820216.jpg") no-repeat center"></li>
</ul>
</div>
<div class="prvebtn"><</div>
<div class="nextbtn">></div>
<div id="bancontr">
<div class="heighlight_tip">
<span class="current" ></span>
<span></span>
<span></span>
<span></span>
<div style="clear:both"></div>
</div>
</div>
</section>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
<script type="text/javascript">
var index="";
var timer="";
var index="";
var leng=$("li").size();
testLiw(); //banner ——UL宽度设置； 用于自适应屏幕宽度！
$(window).resize(function() {
testLiw();
}); function testLiw(){ Lwith=$("body").width();
xl=(leng+2)*Lwith;
$("#banner ul").width(xl);
$("#banner ul li").width(Lwith);
showpicSet(index);
} var sWidth=$("li").width(Lwith);
$("#banner ul").css("width", Lwith*(leng+2)); //设置ul的宽度;
$("#banner ul").prepend($("#banner ul li:last").clone()); //为了实现滑动更好的效果你懂的、
$("#banner ul").append($("#banner ul li:eq(1)").clone());
$("#banner ul").css("left", -Lwith+"px"); //初始化幻灯片的位置！ $(".heighlight_tip span").mouseover(function(){
index=$(".heighlight_tip span").index(this);
showpic(index);
}).eq(0).click(); //class="current" 初始化按钮位置！ $(".prvebtn").click(function(){prve();});
$(".nextbtn").click(function(){next();}); function next(){
if(index==leng-1){
index=0;
showlast();
}else{
index++;
showpic(index); }} ; //下一页
function prve(){
if(index==0){index=leng-1;
showfirst();
}
else{
index--;
showpic(index);}} //上一页 function showpicSet(index){ //我也不知道为什么把这个函数写在这下面了，--用来调整在幻灯片播放过程中，自适应屏幕本身的宽度。
var nowLeft= (-index-1)*Lwith;
$(".bnnwp ul").stop(true,false).css('left',nowLeft);
}
function showpic(index){
var nowLeft= (-index-1)*Lwith;
$("#banner ul").stop(true,true).animate({'left':nowLeft},700);
$(".heighlight_tip span").removeClass("current").eq(index).addClass("current");
} function showlast(){ //最后一张跳到第一张的函数
var nowLeft=(-leng-1)*Lwith;
$("#banner ul").stop(true,false).animate({'left':nowLeft},700,function(){
$("#banner ul").css('left',-Lwith+'px');
})
$(".heighlight_tip span").removeClass("current").eq(0).addClass("current");
} function showfirst(){ //第一张跳到最后一张的函数
var nowleft=(-leng)*Lwith;
$("#banner ul").stop(true,false).animate({'left':"0px"},700,function(){
$("#banner ul").css('left',nowleft+'px');
})
$(".heighlight_tip span").removeClass("current").eq(leng-1).addClass("current");
} $("#banner").hover(function(){
clearInterval(timer);},
function(){timer=window.setInterval(function(){next();},6000); }).mouseout(); </script>
</body>
</html>
//自己都觉得代码写的太冗长了，还请各位大神们多多批评啊，帮小弟我指出些错误。。- -