老师,请帮忙检查一下代码,谢谢

来源:3-13 编程练习

廖可爱bongbong

2021-06-20 21:40:04

<!DOCTYPE html>

<html>


<head>

    <meta charset="utf-8">

    <title>箭头函数的应用</title>

    <style>

        div {

            width320px;

            margin20px 0;

            line-height30px;

            background: yellowgreen;

        }

    </style>

</head>


<body>

    <button id="start">开始</button>

    <button id="stop">停止</button>

    <div id="box"></div>

    <script>

        const startBtn = document.getElementById('start')

        const stopBtn = document.getElementById('stop')

        const box = document.getElementById('box')

        var show = {

            content: "Hello World",

            timer: null,

            start: function () {

                // 在此补充代码

                startBtn.onclick = () => {

                    this.timer = setInterval(() => {

                        box.innerHTML += (show.content) + '&nbsp;' + '&nbsp;';

                    }, 1000);

                }


            },

            stop: function () {

                // 在此补充代码

                stopBtn.onclick = () => {

                    clearInterval(this.timer)

                }

            },

        }

        // 在此补充代码

        show.start();

        show.stop();

    </script>

</body>


</html>


写回答

1回答

好帮手慕言

2021-06-21

同学你好,效果是正确的,继续加油,祝学习愉快~

0

0 学习 · 15276 问题

查看课程