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$(function(){ var imgSrc = $("#image").attr("src"); getImageWidth(imgSrc,function(w,h){ console.log({width:w,height:h}); }); }); function getImageWidth(url,callback){ var img = new Image(); img.src = url; // 如果图片被缓存,则直接返回缓存数据 if(img.complete){ callback(img.width, img.height); }else{ // 完全加载完毕的事件 img.onload = function(){ callback(img.width, img.height); } } }
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