基于jQuery实现手风琴菜单、层级菜单、置顶菜单、无缝滚动效果

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一、手风琴菜单效果图及代码如下:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>手风琴效果制作</title>
 <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../css/reset.css">
 <style>
  .con{
   width:908px;
   height:300px;
   margin:50px auto;
   overflow: hidden;
   position:relative;
  }
  .con .list_ul{
  }
  .con .list_ul li{
   width:805px;
   height:300px;
   position:absolute;
   background:#fff;
  }
  .con .list_ul li span{
   width:26px;
   height:296px;
   text-align: center;
   color:#fff;
   padding-top:4px;
   float:left;
   cursor: pointer;
  }
  .con .list_ul li img{
   width:777px;
   height:300px;
   float:right;
  }
  .con .list_ul li:after{
   display: table;
   clear:both;
   zoom:1;
   content: '';
  }
  .con .list_ul li:nth-child(1){
   left:0;
  }
  .con .list_ul li:nth-child(2){
   left:801px;
  }
  .con .list_ul li:nth-child(3){
   left:828px;
  }
  .con .list_ul li:nth-child(4){
   left:855px;
  }
  .con .list_ul li:nth-child(5){
   left:882px;
  }
  .con .list_ul li:nth-child(1) span{
   background: rgba(8, 201, 160, 0.49);
  }
  .con .list_ul li:nth-child(2) span{
   background: rgba(120, 201, 66, 0.97);
  }
  .con .list_ul li:nth-child(3) span{
   background: rgb(77, 114, 201);
  }
  .con .list_ul li:nth-child(4) span{
   background: rgb(255, 179, 18);
  }
  .con .list_ul li:nth-child(5) span{
   background: rgb(201, 5, 166);
  }
 </style>
 <script src="../js/jquery-1.12.4.min.js"></script>
 <script>
  $(function(){
   $(".list_li").click(function(){
    //左边
    $(this).animate({left:26*$(this).index()});
    //获取该li元素前面的兄弟元素,实现点击中间的部分,它前面的兄弟元素也跟着一起向左移动
    $(this).prevAll().each(function(){
     $(this).animate({left:26*$(this).index()});
    });
    //右边:获取该li元素后面的兄弟元素,实现点击中间的部分,它后面的兄弟元素也跟着一起向右移动
    $(this).nextAll().each(function(){
     $(this).animate({left:778+26*$(this).index()});
    });
   })
  })
 </script>
</head>
<body>
 <div class="con">
  <ul class="list_ul">
   <li class="list_li">
    <span>风景图01</span>
    <img src="../images/li01.png" alt="风景图01">
   </li>
   <li class="list_li">
    <span>风景图02</span>
    <img src="../images/li02.png" alt="风景图02">
   </li>
   <li class="list_li">
    <span>风景图03</span>
    <img src="../images/li03.png" alt="风景图03">
   </li>
   <li class="list_li">
    <span>风景图04</span>
    <img src="../images/li04.png" alt="风景图04">
   </li>
   <li class="list_li">
    <span>风景图05</span>
    <img src="../images/li05.png" alt="风景图05">
   </li>
  </ul>
 </div>
</body>
</html>

二、上卷下拉式(层级)菜单效果图和代码如下:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>用jQuery中的slideToggle制作菜单</title>
 <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../css/reset.css">
 <style>
  .menu{
   width:200px;
   margin:10px auto;
  }
  .menu>li{
   background: #8731dd;
   color:#fff;
   text-indent: 16px;
   margin-top:-1px;
   cursor: pointer;
  }
  .menu>li>span{
   padding:10px 0;
   display:block;
   border-bottom: 1px solid #f3f3f3;
  }
  .menuactive,.menu>li>span:hover{
   background:#c7254e;
  }
  .menu > li ul{
   display: none;
  }
  .menu > li ul li{
   text-indent:20px;
   background: #9a9add;
   border:1px solid #f3f3f3;
   margin-top:-1px;
   padding:6px 0;
  }
  .menu >li .active{
   display: block;

  }
  .menu > li ul li:hover{
   background:#67C962;
  }
  .menu_li ul{
   margin-bottom:1px;
  }
 </style>
 <script src="../js/jquery-1.12.4.min.js"></script>
 <script>
  $(function () {
   $(".menu_li>span").click(function(){
    $(this).addClass("menuactive").parent().siblings().children("span").removeClass("menuactive");
    $(this).next("ul").slideToggle();
    $(this).parent().siblings().children("ul").slideUp();
   })
  })
 </script>
</head>
<body>
<ul class="menu" id="menu">
 <li class="menu_li">
  <span class="menuactive">水果系列</span>
  <ul class="active">
   <li>苹果</li>
   <li>梨子</li>
   <li>葡萄</li>
   <li>火龙果</li>
  </ul>
 </li>
 <li class="menu_li">
  <span>海鲜系列</span>
  <ul>
   <li>鱼</li>
   <li>大虾</li>
   <li>螃蟹</li>
   <li>海带</li>
  </ul>
 </li>
 <li class="menu_li">
  <span>果蔬系列</span>
  <ul>
   <li>茄子</li>
   <li>黄瓜</li>
   <li>豆角</li>
   <li>西红柿</li>
  </ul>
 </li>
 <li class="menu_li">
  <span>速冻食品</span>
  <ul>
   <li>水饺</li>
   <li>冰淇淋</li>
  </ul>
 </li>
 <li class="menu_li">
  <span>肉质系列</span>
  <ul>
   <li>猪肉</li>
   <li>羊肉</li>
   <li>牛肉</li>
  </ul>
 </li>
</ul>
</body>
</html>

三、置顶菜单(当一个菜单到达页面顶部时,停在那)

 <!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>置顶菜单</title>
 <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../css/reset.css" rel="external nofollow" >
 <style>
  .header{
   width:960px;
   height:200px;
   margin:0 auto;
   background: #ccc;
  }
  .header img{
   width:100%;
   height:200px;
  }
  .ul_list{
   width:960px;
   height:50px;
   margin:0 auto;
   text-align: center;
   display: flex;
   justify-content: space-between;/*实现子元素水平方向上平分*/
   align-items: center;/*使子元素垂直方向上居中*/
   background: #67C962;
  }
  .ul_list li{
   width:160px;
   height:50px;
   line-height: 50px;
   border:1px solid #ccc;
   /*使边框合并*/
   margin-right:-1px;
  }
  .ul_list li a{
   color:#fff;
  }
  .ul_list li:hover{
   background: #c7254e;
  }
  .ul_fixed{
   position: fixed;
   top:0;
  }
  .menu_pos{
   width:960px;
   height:50px;
   margin:0 auto;
   line-height: 50px;
   display: none;
  }
  .con div{
   width:958px;
   height:300px;
   line-height: 300px;
   text-align: center;
   margin:-1px auto 0;
   border: 1px solid #ccc;
  }
  .footer{
   height:300px;
  }
  .top{
   width:38px;
   height:38px;
   border-radius: 35px;
   background: #000;
   color:#fff;
   font-size:13px;
   padding:8px;
   text-align: center;
   position: fixed;
   right:100px;
   bottom:20px;
   display: none;
  }
  .top:hover{
   cursor: pointer;
  }
 </style>
 <script src="../js/jquery-1.12.4.min.js"></script>
 <script>
  $(function(){
   var oLeft = ($(document).outerWidth(true)-$(".header").outerWidth())/2;
   var oTop = $(".top");
   $(window).scroll(function(){
    if($(window).scrollTop() >= $(".header").outerHeight()){
     $(".ul_list").addClass("ul_fixed").css({left:oLeft});
     $(".menu_pos").show();
    }else{
     $(".ul_list").removeClass("ul_fixed");
     $(".menu_pos").hide();
    }
    if($(window).scrollTop() >= 150){
     oTop.fadeIn();
     oTop.click(function(){
      //第一种回到顶部的方式
      //$(window).scrollTop(0);
      //第二种回到顶部的方式(常用)
      $("html,body").animate({scrollTop:0});
     })
    }else{
     oTop.fadeOut();
    }
   });
  })
 </script>
</head>
<body>
 <div class="header">
  <img src="../images/li02.png" alt="banner图">
 </div>
 <ul class="ul_list">
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首页</a></li>
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >新闻动态</a></li>
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >产品展示</a></li>
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >案例分析</a></li>
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >关注我们</a></li>
  <li><a rel="nofollow noopener noreferrer" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >联系我们</a></li>
 </ul>
 <div class="menu_pos"></div>
 <div class="con">
  <div class="con_header">网站主内容一</div>
  <div class="con_center">网站主内容二</div>
  <div class="con_footer">网站主内容三一</div>
 </div>
 <div class="footer"></div>
 <div class="top">回到顶部</div>
</body>
</html>

四、无缝滚动效果图及代码如下:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>无缝滚动</title>
 <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../css/reset.css">
 <style>
  .con{
   width:662px;
   margin:50px auto;
  }
  .con button{
   width:100px;
   height:36px;
   line-height: 36px;
   text-align: center;
   border: none;
   margin-left:20px;
  }
  .box{
   width:655px;
   height:135px;
   margin:20px auto;
   border:1px solid #ccc;
   padding-left:10px;
   padding-bottom:10px;
   position: relative;
   overflow: hidden;
  }
  .ul_list{
   display: flex;
   position: absolute;
   left:0;
   top:0;
   padding: 10px;
  }
  .ul_list li{
   width:120px;
   height:120px;
   border:1px solid #ccc;
   margin-left:-1px;
   margin-right:10px;
   /*margin-top:10px;*/
  }
  .ul_list li img{
   width:100%;
   height:100px;
   line-height: 100px;
  }
 </style>
 <script src="../js/jquery-1.12.4.min.js"></script>
 <script>
  $(function(){
   var oUl = $(".ul_list");
   var oLeft = $(".left");
   var oRight = $(".right");
   var left = 0;
   var delay = 2;
   oUl.html(oUl.html()+oUl.html());
   function move(){
    left-=delay;
    if(left<-667){
     left = 0;
    }
    if(left>0){
     left = -667;
    }
    oUl.css({left:left});
   }
   var timer =setInterval(move,30);
   oLeft.click(function(){
    delay =2;
   });
   oRight.click(function(){
    delay = -2;
   });
   oUl.children().each(function(){
    oUl.eq($(this).index()).mouseover(function(){
     clearInterval(timer);
    });
    oUl.eq($(this).index()).mouseout(function(){
     timer= setInterval(function(){
      left-=delay;
      if(left<-667){
       left = 0;
      }
      if(left>0){
       left = -667;
      }
      oUl.css({left:left});
     },30);
    })
   })
  })
 </script>
</head>
<body>
<div class="con">
 <button class="left">向左</button>
 <button class="right">向右</button>
 <div class="box clearfix">
  <ul class="ul_list">
   <li><img src="../images/furit_03.jpg" alt="第一张图片"></li>
   <li><img src="../images/goods_08.jpg" alt="第二张图片"></li>
   <li><img src="../images/furit_02.jpg" alt="第三张图片"></li>
   <li><img src="../images/goods_05.jpg" alt="第四张图片"></li>
   <li><img src="../images/furit_04.jpg" alt="第五张图片"></li>
  </ul>
 </div>
</div>
</body>
</html>

以上菜单涉及到的知识点如下:

四、jQuery

1、slideDown()向下展示

2、slideUp()向上卷起

3、slideToggle()依次展开或卷起某个元素

五、jQuery链式调用

jquery对象的方法在执行完之后返回这个jquery对象,所有的jQuery对象的方法可以连起来写:

$("#div1").chlidren("ul").slideDown("fast").parent().siblings().chlidren("ul").slideUp("fase")

$("#div1").//id位div1的元素

.chlidren("ul") //该元素下的ul子元素

.slideDown("fast") //高度从零到实际高度来显示ul元素

.parent() //跳转到ul的父元素,也就是id为div1的元素

.siblings() //跳转div1元素同级的所有兄弟元素

.chlidren("ul") //查找这些兄弟元素中的ul子元素

.slideUp("fase") //从实际高度变换为零来隐藏ul元素

总结

以上所述是小编给大家介绍的基于jQuery实现手风琴菜单、层级菜单、置顶菜单、无缝滚动,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!

本文基于jQuery实现手风琴菜单、层级菜单、置顶菜单、无缝滚动效果到此结束。任何人的光鲜亮丽,必有他该面对的艰难险阻。小编再次感谢大家对我们的支持!

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