获取DOM元素样式

1、obj.currentStyle.styleName　　　只兼容IE

2、getComputedStyle(obj, false).styleName　　不兼容IE8

于是有了兼容性写法：

function getStyle(obj, sName){
	return (obj.currentStyle || getComputedStyle(obj, false))[sName];
}

　　demo：

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>DEMO - Lik</title>
	<style>
		div{
			100px;
			height:200px;
			background:blue;
		}
	</style>
</head>
<body>
	<div></div>
	<script>
		function getStyle(obj, sName){
			return (obj.currentStyle || getComputedStyle(obj, false))[sName];
		}
		var oDiv = document.getElementsByTagName('div')[0];
		console.log(getStyle(oDiv, 'width'));	　　　　// 100px
		console.log(getStyle(oDiv, 'height'));	　　　　// 200px
		console.log(getStyle(oDiv, 'background'));　　　// rgb(0, 0, 255) none repeat scroll 0% 0% / auto padding-box border-box
	</script>
</body>
</html>

author：Lik
Endeavoring to powerless, struggling to move yourself.