鼠标放上去小图显示大图

<html>
<head>
<title>test</title>
</head>
<body>
<style> 
#demo{overflow:hidden;120px;text-align:center;padding:10px;} 
#demo img{border:none;300px;height:100px;border:5px solid #f4f4f4} 
#enlarge_images{position:absolute;display:none;z-index:2;border:5px solid #f4f4f4} 
</style> 
<div id="demo" style="overflow:hidden;351px;text-align:center;padding:10px"> 
  <img src="1.jpg">
</div> 
<div id="enlarge_images"></div> 
<script> 
var demo = document.getElementById("demo"); 
var gg = demo.getElementsByTagName("img"); 
var ei = document.getElementById("enlarge_images"); 
for(i=0; i<gg.length; i++){ 
    var ts = gg[i]; 
    ts.onmousemove = function(event){ 
        event = event || window.event; 
        ei.style.display = "block"; 
        ei.innerHTML = '<img src="' + this.src + '" />'; 
        ei.style.top  = document.body.scrollTop + event.clientY + 10 + "px"; 
        ei.style.left = document.body.scrollLeft + event.clientX + 10 + "px"; 
    } 
    ts.onmouseout = function(){ 
        ei.innerHTML = ""; 
        ei.style.display = "none"; 
    } 
    ts.onclick = function(){ 
        window.open( this.src ); 
    } 
} 
</script>
</body>
</html>
原文地址:https://www.cnblogs.com/phpfensi/p/4476798.html