話不多說，請看代碼：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>鼠標跟隨效果</title> <style type="text/css"> *{margin: 0;padding: 0;} img{position:absolute;top:0;left:0;} </style></head><body> <img src="http://www.qdfuns.com/misc.php?mod=attach&genre=editor&aid=21984166dad229792b21c2e1277bece5" height="50" width="50" alt="" id="img"></body><script type="text/javascript"> (function(window){ // 獲取對象 var img = document.getElementById("img"); // 為頁面添加單擊事件，鼠標點擊時圖片滑動到鼠標所在位置 document.onclick = function(event){ var event = event || window.event; // 獲取鼠標在頁面上的坐標 var pageX = event.pageX || event.clientX + document.documentElement.scrollLeft; var pageY = event.pageY || event.clientY + document.documentElement.scrollTop; // 減去圖片自身寬高的一半，使鼠標在圖片中間 pageX = pageX - img.offsetWidth/2; pageY = pageY - img.offsetWidth/2; animate(img,{"left":pageX,"top":pageY}); }; // 封裝緩動函數(shù) function animate(obj,json,fn){ clearInterval(obj.timer); obj.timer = setInterval(function(){ var flog = true ; for( k in json ){ if( k === "zindex" ){ obj.style[k] = json[k]; }else if( k === "opacity" ){ var leader = getStyle(obj,k) * 100; var target = json[k] * 100; var step = ( target - leader ) / 10 ; step = step > 0 ? Math.ceil( step ) : Math.floor( step ); leader = leader + step ; obj.style[k] = leader / 100; }else{ var leader = parseInt( getStyle(obj,k) ); var target = json[k]; var step = ( target - leader) / 10 ; step = step > 0 ? Math.ceil( step ) : Math.floor( step ); leader = leader + step; obj.style[k] = leader + "px"; }; if( leader !== target ){ flog = false; } } if( flog ){ clearInterval(obj.timer); if( fn ){ fn(); }; }; }, 15) }; // 封裝獲取計算后樣式的函數(shù) function getStyle(obj,attr){ if( window.getComputedStyle ){ return window.getComputedStyle(obj,null)[attr]; }else{ return obj.currentStyle[attr]; }; }; })(window)</script></html>以上就是本文的全部內(nèi)容，希望本文的內(nèi)容對大家的學習或者工作能帶來一定的幫助，同時也希望多多支持武林網(wǎng)！
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