JavaScript实现图片跟随鼠标移动的完整代码示例

<head>
 <meta charset="UTF-8">
 <title></title>
 <style type="text/css">
 #box {
 width: 1000px;
 height: 600px;
 background: #cecece;
 margin: 20px auto;
 }
 
 img{
 width: 50px;
 height: 50px;
 border-radius: 50%;
 background: #f00;
 position: absolute;
 }
 </style>
</head>

<body>
 <div id="box">
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 <img src="img/1.png" class="img"/>
 </div>
 <script type="text/javascript">
 window.onload = function() {
 var oBox = document.getElementById("box");
 var oImg=document.getElementsByClassName("img");
 
 oBox.onmousemove = function(e) {
 var e = e || window.event;
 var left = e.clientX;
 var top = e.clientY;

 //console.log(left, top);
 //设置oImg偏移量
 //oImg.style.left = left + "px";
 //oImg.style.top = top + "px";
 oImg[0].style.left=left + "px";
 oImg[0].style.top=top + "px";
 
 for(var i=oImg.length-1;i>0;i--){
 oImg[i].style.left=oImg[i-1].style.left;
 oImg[i].style.top=oImg[i-1].style.top;
 }
 }
 }
 </script>
</body>