案例测试：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>元素宽度与高度</title>
<style type="text/css">
#container{
width:200px;
height:200px;
padding:20px;
margin:30px;
border:5px solid red;
}
</style>
<script type="text/javascript" src="jquery-1.11.1.js"></script>
<script type="text/javascript">
$(function(){
console.log("width():"+$("#container").width());
console.log("height():"+$("#container").height());
console.log("innerWidth()"+$("#container").innerWidth());
console.log("innerHeight():"+$("#container").innerHeight());
console.log("outerWidth():"+$("#container").outerWidth());
console.log("outerHeight():"+$("#container").outerHeight());
})
</script>
</head>
<body>
<div id = "container"></div>
</body>
</html>运行结果：
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原文：http://blog.51cto.com/11230344/2299943