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原生JS实现读取当前时间

| 阅读:2239 发表时间:2019-11-14 17:01:16 HTML5+CSS3

原生JS实现读取当前时间,加一个setInterval 可以做时间秒级显示

function writeCurrentDate() {
	var now = new Date();
	var year = now.getFullYear(); //得到年份
	var month = now.getMonth();//得到月份
	var date = now.getDate();//得到日期
	var day = now.getDay();//得到周几
	var hour = now.getHours();//得到小时
	var minu = now.getMinutes();//得到分钟
	var sec = now.getSeconds();//得到秒
  var MS = now.getMilliseconds();//获取毫秒
	var week;
	month = month + 1;
	if (month < 10) month = "0" + month;
	if (date < 10) date = "0" + date;
	if (hour < 10) hour = "0" + hour;
	if (minu < 10) minu = "0" + minu;
	if (sec < 10) sec = "0" + sec;
	if (MS < 100)MS = "0" + MS;
	var time = "";
	time = year + "-" + month + "-" + date + " " + hour + ":" + minu + ":" + sec;
	$("#currentDate").html(time);
  }
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