jQuery 勾选启用输入框

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <label for="checks">
            <input type="checkbox" name="checks" id="checks" value="1" />
            <span>通过短信通知我</span>
        </label>
        <br /><br />
        <div>
            接收通知的手机号：
            <input id="exportInp" type="text" disabled="disabled" value="已禁用" />
            <span style="color:#666;font-size:12px">请注意，有短信通知</span>
        </div>

        <script src="js/jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
        <script type="text/javascript">
            $(function(){
                $("#checks").click(function(){
                    console.log($(this)+"点击我了");
//                    var checkeds = this.checked;
                    if(this.checked == true){
                        console.log("选中了");
                        $("#exportInp").removeAttr("disabled");
                    }else{
                        console.log("未选中");
                        $("#exportInp").attr("disabled","disabled");
                    }
                })
            })
        </script>
    </body>
</html>

效果预览：