jQuery实现的图片轮播效果完整示例-工具盒子

本文实例讲述了jQuery实现的图片轮播效果。分享给大家供大家参考，具体如下：


<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图片轮播</title>
<style type="text/css">
*{ padding: 0; margin: 0;}
li{ list-style-type: none;}
body{ margin: 50px;}
a img{ border:none;}
.wrap{
  width: 500px;
  height: 350px;
  border: 3px solid #f00;
  position:relative;
  overflow: hidden;
}
.wrap ul{
  width: 2500px;
  position: absolute;
  left: 0;
  top: 0;
}
.wrap ul li{
  float: left;
  width: 500px;
}
.wrap ol{
  position: absolute;
  bottom: 10px;
  right: 10px;
}
.wrap ol li{
  float: left;
  width: 16px;
  height: 16px;
  line-height: 16px;
  text-align: center;
  border: 1px solid #fc0;
  background: #000;
  color: #fff;
  margin-right: 3px;
  cursor: pointer;
}
.wrap ol li.current{
  background: #fff;
  color: #000;
}
.wrap .introduce{
  height: 30px;
  line-height: 30px;
  width: 350px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  position: absolute;
  bottom: 10px;
  left: 0;
  /*opacity: 0.5;
  filter:alpha(opacity=50); */
}
</style>
</head>
<body>
<div class="wrap">
  <ul>
    <li><a href="###"><img src="1.jpg" alt="阅谁问君诵，水落清香浮"></a></li>
    <li><a href="###"><img src="2.jpg" alt="天若无人解上文，吾人自惜问天去"></a></li>
    <li><a href="###"><img src="3.jpg" alt="风雨聊程"></a></li>
    <li><a href="###"><img src="4.jpg" alt="流星与共谁与共，人生无求复何求"></a></li>
    <li><a href="###"><img src="5.jpg" alt="一站式共享网络"></a></li>
  </ul>
  <ol>
    <li class="current">1</li>
    <li>2</li>
    <li>3</li>
    <li>4</li>
    <li>5</li>
  </ol>
  <p class="introduce">111111</p>
</div>
<script src="jquery-1.7.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
  var oul = $('.wrap ul');
  var ali = $('.wrap ul li');
  var numLi = $('.wrap ol li');
  var aliWidth = $('.wrap ul li').eq(0).width();
  var _now = 0;  //这个是控制数字样式的计数器
  var _now2 = 0; //这个是控制图片运动距离的计数器
  var timeId;
  var aimg = $('.wrap ul img');
  var op = $('.wrap p');
  numLi.click(function(){
    var index = $(this).index();
    _now = index;
    _now2=index;
    var imgAlt = aimg.eq(_now).attr('alt');
    op.html(imgAlt);
    $(this).addClass('current').siblings().removeClass();
    oul.animate({'left':-aliWidth*index},500);
  });
  /**
   * [slider description] 图片运动的函数
   * @return {[type]} [description] 无返回值
   */
  function slider(){
    if(_now==numLi.size()-1){
      ali.eq(0).css({
          'position':'relative',
          'left': oul.width()
      });
      _now=0;
    }else{
      _now++;
    }
    _now2++;
    numLi.eq(_now).addClass('current').siblings().removeClass();
    var imgAlt = aimg.eq(_now).attr('alt');
    op.html(imgAlt);
    oul.animate({'left':-aliWidth*_now2},500,function(){
      if(_now==0){
        ali.eq(0).css('position','static');
        oul.css('left',0);
        _now2=0;
      }
    });
  }
  timeId = setInterval(slider,1500);
  /*$('.wrap').mouseover(function(){
    clearInterval(timeId);
  });
  $('.wrap').mouseout(function(){
    timeId = setInterval(slider,1500);
  });*/
  $('.wrap').hover(function(){
    clearInterval(timeId);
  },function(){
    timeId = setInterval(slider,1500);
  });
});
</script>
</body>
</html>

运行效果图如下：