1)獲取圖片尺寸

復制代碼 代碼如下:

<img src="http://www.survivalescaperooms.com/uploads/allimg/130905/15315S117_1.jpg" title="MM(實際大小200*300)"/>
<script>
function getWH(t){
//DOM屬性
console.log("width="+t.width);//200
console.log("height="+t.height);//300
//操作樣式
console.log("styleWidth="+t.style.width);//空
console.log("styleHeight="+t.style.height);//空
}

復制代碼 代碼如下:

<img src="http://www.survivalescaperooms.com/uploads/allimg/130905/15315S117_1.jpg" title="MM(實際大小200*300)"/>
<script>
function getWH(t){
console.log("width="+t.naturalWidth);
console.log("height="+t.naturalHeight);
t.width = t.naturalWidth * 2;
t.height = t.naturalHeight * 2;
}
</script>