JS实现图片轮播效果

JS实现图片轮播效果
转自：https://blog.csdn.net/lgx1134569285/article/details/80511795

main.html:

    
    
    
    



    

        

            

            
  
            
  
            
  
        
        
小按钮数量无法确定，由js动态生成
        

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picture.js:

//获取各元素，方便操作
var inner=$("#box").children()[0];
var ulObj=inner.children[0];
var list=ulObj.children;
var olObj=inner.children[1];

var imgWidth=inner.offsetWidth;

var pic=0;
//根据li个数，创建小按钮
for(var i=0;i Math.abs(step)) {
            element.style.left = current + "px";
        } else {
            //清理定时器
            clearInterval(element.timeId);
            //直接到达目标
            element.style.left = target + "px";
        }
    }, 10);
}

display.css:

*{
    margin:0;
    padding: 0;
}
.box{
    width: 500px;
    height: 300px;
    border: 1px solid #ccc;
    margin: 100px auto;
    padding: 5px;
}
.inner{
    width: 500px;
    height: 300px;
    position: relative;
    overflow: hidden;
}
.inner img{
    width: 500px;
    height: 300px;
    vertical-align: top;
}
ul{
    width: 1000%;
    position: absolute;
    list-style: none;
    left: 0;
    top: 0;
}
.inner li{
    float: left;
}
ol{
    position:absolute;
    height: 20px;
    right: 20px;
    bottom: 20px;
    text-align: center;
    padding: 5px;
}
ol li{
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    background-color: #fff;
    margin: 5px;
    cursor: pointer;
}
.current{
    background-color: red;
}
#arr{
    display: none;
}
#arr span{
    width: 40px;
    height: 40px;
    position: absolute;
    left: 5px;
    top: 50%;
    margin-top: -20px;
    background: #fff;
    cursor: pointer;
    line-height: 40px;
    text-align: center;
    font-weight: bold;
    font-family: '黑体';
    font-size: 30px;
    color: #000;
    opacity: 0.5;
    border: 1px solid #fff;
}
#arr #right{
    right: 5px;
    left: auto;
}