jquery学习之天猫轮播图及解决bug问题实例分享

程序员文章站 2024-01-02 15:43:58

实现效果是：图片轮播，点击时下面对li显示对应图片，接着轮播为了让两个操作分隔开，第一种方法：当点击时clearinterval,在执行完操作时再setinterval $("#m...

实现效果是：图片轮播，点击时下面对li显示对应图片，接着轮播

为了让两个操作分隔开，

第一种方法：当点击时clearinterval,在执行完操作时再setinterval

$("#mbb ul li").click(function(){  
      <span style="color:#ff0000;"> window.clearinterval(timer);  
       c=$(this).index();  
       var left=c*(-952);  
       $("#mbb .con").stop().animate({'left':left+'px'},300,function(){  
       timer=window.setinterval(function(){run();},2000)});</span>  
       $(this).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})  
     })

<html>  
<head>  
    <style type="text/css">  
  *{  
    margin: 0px auto;  
    list-style-type: none;  
  }  
  
  
  #mbb ul{  
    position: absolute;bottom: 0px;right: 0px;  
  }  
  
  #mbb ul li{  
    width: 116px;height:29px;float: left;line-height: 29px;text-align: center;opacity: 0.4;color: white;background-color: black;font-size: 12px;margin-left: 1px;  
  }  
   #mbb ul li:hover{  
    color: #c00;  
      
  }  
  
  img{  
  width: 952px;height: 440px;float: left;  
  }  
  
#mbb{  
  width: 952px;height: 440px;border: 4px green solid;margin:0px auto; position: relative;top: 0px;left:0px;overflow: hidden;         
}  
#mbb .con{  
  width: 5712px;height: 440px;position: absolute;left: 0px;top:0px;  
}  
    </style>  
    
  
  
    <script src="jquery.js"></script>  
    <script type="text/javascript">  
    $(function(){  
      var c=0;  
      var timer=window.setinterval(function(){run();  
      },2000)  
       
      $("#mbb ul li").click(function(){  
        window.clearinterval(timer);  
        c=$(this).index();  
        var left=c*(-952);  
        $("#mbb .con").stop().animate({'left':left+'px'},300,function(){  
        timer=window.setinterval(function(){run();},2000)});  
        $(this).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})  
      })     
      function run(){  
        c++;  
        if(c==5){  
            $("#mbb ul li").eq(0).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})   
        }  
  
        if(c==6){  
              $("#mbb .con").css({'left':'0px'});  
              c=1;  
        }  
        var l=-952*c;  
  
       $("#mbb .con").stop().animate({'left':l+'px'},300);  
       $("#mbb ul li").eq(c).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})   
      }  
        
   })  
        
    
</script>  
  
  
</head>  
<body>  
<p id="mbb">  
  <p class="con">  
         <img src="p1.jpg">  
         <img src="p2.jpg">   
       <img src="p3.jpg">  
       <img src="p4.jpg">  
       <img src="p5.jpg">  
       <img src="p1.jpg">  
   </p>  
   <ul>  
    <li style="opacity:0.7">衣服1</li>  
    <li>裙子2</li>  
    <li>套装3</li>  
    <li>时尚4</li>  
     <li>可爱爱5</li>  
  </ul>  
</p>  
  
  
  
  
  
  
</body>  
</html>

第二种方法用settimeout实现，在300秒之后执行run操作

cleartimeout(t)  
t=settimeout(function(){  
  timer=window.setinterval(function(){run(); },2000)  
},300)  
  
c=$(this).index();  
var left=c*(-952);  
$("#mbb .con").stop().animate({'left':left+'px'},300);  
$(this).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})

同时，为防止不小心点击造成混乱，设置一个flag，再执行完animate操作后flag=2

<html>  
<head>  
    <style type="text/css">  
  *{  
    margin: 0px auto;  
    list-style-type: none;  
  }  
  
  
  #mbb ul{  
    position: absolute;bottom: 0px;right: 0px;  
  }  
  
  #mbb ul li{  
    width: 116px;height:29px;float: left;line-height: 29px;text-align: center;opacity: 0.4;color: white;background-color: black;font-size: 12px;margin-left: 1px;  
  }  
   #mbb ul li:hover{  
    color: #c00;  
      
  }  
  
  img{  
  width: 952px;height: 440px;float: left;  
  }  
  
#mbb{  
  width: 952px;height: 440px;border: 4px green solid;margin:0px auto; position: relative;top: 0px;left:0px;overflow: hidden;         
}  
#mbb .con{  
  width: 5712px;height: 440px;position: absolute;left: 0px;top:0px;  
}  
</style>  
   
    <script src="jquery.js"></script>  
    <script type="text/javascript">  
    $(function(){  
      var c=0;  
      var flag=0;//0代表能点击，1代表不能点击  
      var t;  
      var timer=window.setinterval(function(){run();  
      },2000)  
       
      $("#mbb ul li").click(function(){  
        if(flag==1){  
          return;  
        }  
        window.clearinterval(timer);  
        //为保证多次点击造成timeout混乱  
        cleartimeout(t)  
        t=settimeout(function(){  
          timer=window.setinterval(function(){run(); },2000)  
        },300)  
  
        c=$(this).index();  
        var left=c*(-952);  
        $("#mbb .con").stop().animate({'left':left+'px'},300);  
        $(this).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})  
      })  
  
         
      function run(){  
        c++;  
        if(c==5){  
            $("#mbb ul li").eq(0).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})   
        }  
  
        if(c==6){  
              $("#mbb .con").css({'left':'0px'});  
              c=1;  
        }  
        var l=-952*c;  
  
       $("#mbb .con").stop().animate({'left':l+'px'},300,function(){  
        flag=2;  
       });  
       $("#mbb ul li").eq(c).css({'opacity':'0.7'}).siblings('li').css({'opacity':'0.4'})   
      }  
        
   })  
        
     
  
  
         
    
</script>  
  
  
</head>  
<body>  
  
   
  
  
<p id="mbb">  
  <p class="con">  
       <img src="p1.jpg">  
       <img src="p2.jpg">   
       <img src="p3.jpg">  
       <img src="p4.jpg">  
       <img src="p5.jpg">  
       <img src="p1.jpg">  
   </p>  
   <ul>  
    <li style="opacity:0.7">衣服1</li>  
    <li>裙子2</li>  
    <li>套装3</li>  
    <li>时尚4</li>  
     <li>可爱爱5</li>  
  </ul>  
   
  
</p>  
  
</body>  
</html>