jQuery制作效果超棒的手风琴折叠菜单

拉风的jQuery制作的手风琴折叠菜单，效果非常不错!这里是之前版本的改进版，主要是jquery代码改进

演示图：

main.js

$(function(){
  var tmp = null,
    $title = $('.title'),
    $con = $('.title > ul');

  $title.click(function(){
    $(tmp).children('ul').slideUp().end().children('.arrow').removeClass('arrow-up');
    $(this).children('ul').slideToggle().end().children('.arrow').addClass('arrow-up');
    tmp = this;
  });
  $con.click(function(){
    return false;  // 阻止事件冒泡
  });
});

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <title>jquery js css html</title>
  <meta charset="utf-8" />
  <link rel="stylesheet" href="css/style.css" />
</head>
<body>
  <!--sidebar-->
  <div class="sidebar">
    <ul>
      <li class="title"><span>一、HTML5基础教程</span><span class="arrow"></span>
        <ul class="in-sidebar">
          <li><a target="_blank" href="http://www.jiuni.com.cn">HTML5基础教程1</a></li>
          <li><a href="#">HTML5基础教程2</a></li>
          <li><a href="#">HTML5基础教程3</a></li>
          <li><a href="#">HTML5基础教程4</a></li>
          <li><a href="#">HTML5基础教程5</a></li>
        </ul>
      </li>
      <li class="title"><span>二、CSS3基础教程</span><span class="arrow"></span>
        <ul class="in-sidebar">
          <li><a href="#">CSS3基础教程1</a></li>
          <li><a href="#">CSS3基础教程2</a></li>
          <li><a href="#">CSS3基础教程3</a></li>
          <li><a href="#">CSS3基础教程4</a></li>
          <li><a href="#">CSS3基础教程5</a></li>
        </ul>
      </li>
      <li class="title"><span>三、Javascript基础教程</span><span class="arrow"></span>
        <ul class="in-sidebar">
          <li><a href="#">Javascript基础教程1</a></li>
          <li><a href="#">Javascript基础教程2</a></li>
          <li><a href="#">Javascript基础教程3</a></li>
          <li><a href="#">Javascript基础教程4</a></li>
          <li><a href="#">Javascript基础教程5</a></li>
        </ul>
      </li>
      <li class="title"><span>四、NodeJs基础教程</span><span class="arrow"></span>
        <ul class="in-sidebar">
          <li><a href="#">NodeJs基础教程1</a></li>
          <li><a href="#">NodeJs基础教程2</a></li>
          <li><a href="#">NodeJs基础教程3</a></li>
          <li><a href="#">NodeJs基础教程4</a></li>
          <li><a href="#">NodeJs基础教程5</a></li>
        </ul>
      </li>
      <li class="title"><span>五、IOS基础教程</span><span class="arrow"></span>
        <ul class="in-sidebar">
          <li><a href="#">IOS基础教程1</a></li>
          <li><a href="#">IOS基础教程2</a></li>
          <li><a href="#">IOS基础教程3</a></li>
          <li><a href="#">IOS基础教程4</a></li>
          <li><a href="#">IOS基础教程5</a></li>
        </ul>
      </li>
    </ul>

  </div>

  <script src="js/jquery-1.8.3.min.js"></script>
  <script src="js/main.js"></script>
</body>
</html>

style.css

/*globle*/
ul, li{
  margin: 0;
  padding: 0;
  list-style-type: none;
}
a{
  display: inline-block;
  width: 100%;
  height: 31px;
  text-decoration: none;
  color: #fff;
  font-size: 13px;
}
a:hover{
  background: #52718A;
}
/*sidebar*/
.sidebar{
  width: 210px;
  height: 335px;
  margin: 50px auto;
  border-radius: 5px;
  font: 14px '新宋体';
  color: #f4f4f4;
}
.title{
  width: 95%;
  line-height: 32px;
  border-bottom: 1px solid #ccc;
  background: #1ABC9C;
  cursor: pointer;
}
.title > span{
  margin-left: 10px;
}
/*in-sidebar*/
.in-sidebar{
  width: 100%;
  display: none;
}
.in-sidebar > li{
  width: 100%;
  height: 32px;
  background: #34495E;
  line-height: 32px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}
/*arrow*/
.arrow{
  float: right;
  display: inline-block;
  margin-right: 5px;
  width: 20px;
  height: 32px;
  background: url(../img/down.png) no-repeat center;
}
.arrow-up{
  background: url(../img/up.png) no-repeat center;
}

以上所述就是本文给大家分享的全部内容了，希望能够对大家学习jQuery有所帮助。