loadPicSize:function(sourceSrc){
			console.log(sourceSrc);
			var?self?=this;

			this.preLoadImg(sourceSrc,function(){

				self.popupPic.attr("src",sourceSrc);
				console.log("self.popupPic:"+self.popupPic);
				var?picWidth?=self.popupPic.width();
				var?picHeight=self.popupPic.height();
				console.log("picWidth:"+picWidth);
				console.log("picHeight:"+picHeight);
			});
		},
		preLoadImg:function(src,callback){
			?var?img=new?Image();
????????????if(!!window.ActiveXObject){
????????????????img.onreadystatechange=function(){
????????????????????if?(this.readyState=="complete")?{
????????????????????????callback();
????????????????????};
????????????????};
????????????}else?{
????????????????img.onload=function(){
????????????????????callback();
????????????????};
????????????};
????????????img.src=src;
		},

代碼如上，報錯如下

這個問題卡了好久求解答！