js获取今天星期几

喜欢ヅ旅行 2022-11-18 04:52 556阅读 0赞

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html" charset="utf-8" />
        <title></title>
    </head>
    <body>
        <button class="button" type="button">点击查看</button>
        <div id="content"></div>
        <script>
            function myDay(date) { 
                switch (date) { 
                    case 0:
                        return "星期天"
                        break;
                    case 1:
                        return "星期一"
                        break;
                    case 2:
                        return "星期二"
                        break;
                    case 3:
                        return "星期三"
                        break;
                    case 4:
                        return "星期四"
                        break;
                    case 5:
                        return "星期五"
                        break;
                    case 6:
                        return "星期六"
                        break;
                }
            }
            var button = document.getElementsByClassName('button')[0];
            var con = document.getElementById('content')
            var date = new Date().getDay()
            button.onclick = function functionName() { 
                con.innerHTML = myDay(date)
            }
        </script>
    </body>
</html>