javascript获取当前时间（年月日时分秒）的实例代码

<p id="time"></p>
<script>
var time = document.getElementById("time")
 
		function show() {
			let date = new Date();
			let year = date.getFullYear(); //获取当前年份
			let mon = date.getMonth() + 1; //获取当前月份
			let da = date.getDate(); //获取当前日
			let h = date.getHours(); //获取小时
			let m = date.getMinutes(); //获取分钟
			let s = date.getSeconds(); //获取秒
			time.innerText = `${year} ${mon} ${da} ${h}:${m}:${s}`;
          //通过html中p标签id为time的获取到时间运行
		}
		setInterval("show()", 1000);
</script>