js获取格式化日期方法

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <script type="text/javascript">
        function dateFormat (date, fmt) { //author: meizz

            if(!(date instanceof Date))
            {
                if(date==undefined||(date.trim()+"")=="")return "";
                date = parseTime(date);
            }

            var o = {
                "M+": date.getMonth()+1, //月份
                "d+": date.getDate(), //日
                "h+": date.getHours(), //小时
                "m+": date.getMinutes(), //分
                "s+": date.getSeconds(), //秒
                "q+": Math.floor((date.getMonth() + 3) / 3), //季度
                "S": date.getMilliseconds() //毫秒
            };
            if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
            for (var k in o)
                if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
            return fmt;
        }

        function showTime(){
            x = document.getElementById("curTime");
            x.innerHTML = dateFormat(new Date(),"yyyyMMdd hh:mm:ss");
        }
    </script>
</head>
<body>
    <button οnclick="showTime()">点我查看时间</button>
    <h3><span id="curTime"></span></h3>
</body>
</html>


效果:




posted @ 2018-01-27 12:53  一锤子技术员  阅读(1)  评论(0编辑  收藏  举报  来源