图片预加载
for(var i=1;i<77;i++) { (function (oNewImg){ var oImg=new Image(); oImg.onload=function () { oNewImg.src=this.src; }; oImg.src='img/miaov ('+i+').jpg'; oNewImg.style.display='none'; document.body.appendChild(oNewImg); })(document.createElement('img')); }