参考答案

参考回答：

<script type="text/javascript">
var obj=new Image();
obj.src="http://www.phpernote.com/uploadfiles/editor/201107240502201179.jpg";
obj.onload=function(){

alert('图片的宽度为：'+obj.width+'；图片的高度为：'+obj.height);

document.getElementById("mypic").innnerHTML="<img src='"+this.src+"' />";
}
</script>
<div id="mypic">onloading……</div>

(2)方法2

<script type="text/javascript">
var obj=new Image();
obj.src="http://www.phpernote.com/uploadfiles/editor/201107240502201179.jpg";
obj.onreadystatechange=function(){
if(this.readyState=="complete"){

alert('图片的宽度为：'+obj.width+'；图片的高度为：'+obj.height);

document.getElementById("mypic").innnerHTML="<img src='"+this.src+"' />";
}
}
</script>
<div id="mypic">onloading……</div>