Use javascript to achieve the effect of switching images left and right-CSS Tutorial-php.cn

Use javascript to achieve the effect of switching images left and right

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Release： 2018-06-25 16:47:28

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This article mainly introduces you to the left and right switching effect of images based on javascript. Interested friends can refer to it.

The example of this article introduces the detailed code of javascript to achieve the left and right switching effect of images. Share it with For your reference, the specific content is as follows

Rendering:

Specific code:

<html>
  <head>
    <title>JS图片左右切换效果</title>
    <meta charset="utf-8"/>
    <style type="text/css">
      *{
        margin:0;
        padding:0;       
      }    
         
      .images-scroll{
        border:1px solid #CCC;
        margin:100px auto;
        width:300px;
        height:200px;
        position:relative;
      }  
       
      .images-scroll ul{
        list-style:none;
      }
 
      .images-scroll li{
        float:left; 
        display:none;      
      }
 
      .images-scroll .active{
        display:block;
      }
 
      .images-scroll a{
         
      }
 
      .images-scroll img{
        width:300px;
        height:200px;
        border:none;
      }            
       
      .images-scroll .left-scroll{
        position:absolute;
        top:40%;
        left:-40px;
        opacity:0;
        background:url("images/bg_direction_nav.png");
        background-repeat:no-repeat;
        background-position:0px 0px;
        height:27px;
        width:27px;
        cursor:pointer;
      }
 
      .images-scroll .right-scroll{
        position:absolute;
        top:40%;
        opacity:0;
        right:-40px;
        background:url("images/bg_direction_nav.png");
        background-repeat:no-repeat;
        background-position:-30px 0px;
        height:27px;
        cursor:pointer;
        width:27px;       
      }  
 
      .images-scroll .right-scroll:hover{
        background-color:transparent;
      }
 
    </style>
    <script src="jquery-1.8.2.js"></script>
  </head>
  <body>
     
    <p id="images-scroll" class="images-scroll">
      <ul>
        <li class="active"><a href=""><img src="images/1.jpg" alt=""></a></li>
        <li><a href=""><img src="images/2.jpg" alt=""></a></li>
        <li><a href=""><img src="images/3.jpg" alt=""></a></li>
        <li><a href=""><img src="images/4.jpg" alt=""></a></li>
      </ul>
      <span id="left-scroll" class="left-scroll"></span>
      <span id="right-scroll" class="right-scroll"></span>
    </p>
    <script type="text/javascript">  
 
      $("#images-scroll").mouseover(function(){
        $("#left-scroll").animate({left: &#39;10px&#39;,opacity:&#39;1&#39;,},400);
        $("#right-scroll").animate({right: &#39;10px&#39;,opacity:&#39;1&#39;,},400);
      })
      $("#images-scroll").mouseleave(function(){
        $("#left-scroll").animate({left: &#39;-40px&#39;,opacity:&#39;0&#39;,},400);
        $("#right-scroll").animate({right: &#39;-40px&#39;,opacity:&#39;0&#39;,},400);        
      })
 
      imgScroll=setInterval("runScroll()",3000);
      var last_idx=$("#images-scroll ul li").index($("#images-scroll ul li:last"));
      function runScroll(){          
        var idx=$("#images-scroll ul li").index($("#images-scroll ul .active")[0]);
        $("#images-scroll li").eq(idx).removeClass("active").hide();
        idx+=1;
        if(idx%(last_idx+1)==0){
          idx=0;
        }
        $("#images-scroll li").eq(idx).addClass("active").show();
      }
      $("#left-scroll").click(function(){
        var idx=$("#images-scroll ul li").index($("#images-scroll ul .active")[0]);
        $("#images-scroll li").eq(idx).removeClass("active").hide();
        idx-=1;
        if(idx==-1){
          idx=last_idx;
        }
        $("#images-scroll li").eq(idx).addClass("active").show();
      })
      $("#right-scroll").click(function(){
        runScroll();
      })     
    </script>
     
  </body>
</html>

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