Jquery 链式编程
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="https://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js"></script>
</head>
<body>
<button>1</button>
<button>1</button>
<button>1</button>
<button>1</button>
<button>1</button>
<button>1</button>
<button>1</button>
<button>1</button>
<script type="text/javascript">
$("button").click(function(){
$(this).css("color","red").siblings().css("color","blue");
})
</script>
</body>
</html>

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