jquery enabled选择器 语法
作用：:enabled 选择器选取所有启用的表单元素。大理石平台精度等级
语法：$(":enabled")
jquery enabled选择器 示例
<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(":enabled").css("background-color","#B2E0FF");
});
</script>
</head>
<body>
<html>
<body>
<form action="">
Name: <input type="text" name="user" />
<br />
Password: <input type="password" name="password" />
<br />
<button type="button">Useless Button</button>
<input type="button" value="Another useless button" />
<br />
<input type="reset" value="Reset" />
<input type="submit" value="Submit" />
<br />
</form>
</body>
</html>
</body>
</html>