jquery中通过添加readonly或者disabled属性实现行为禁止 / 去除某个属性的方法

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>ajax file</title>

    <script src="./js/jquery-1.12.4.min.js"></script>

    <script>

        $(function(){

            // 设置禁止点击

            $(".butt").attr("disabled","disabled")

            $(".ck").attr('readonly',"readonly")

            // 去除某个属性

            $(".buu").removeAttr("disabled")

        });

    </script>

</head>

<body>

    <div class="box" a="">

        嘿嘿

    </div>

    <input class="ck" type="text" value="嘿嘿">

    <button class='butt'>按钮</button>

    <button class='buu' disabled="disabled">按钮2</button>

</body>

</html>