今天:new Date()
毫秒:new Date(milliseconds)
字串:new Date("1991/08/22")
時間:new Date(1998, 2, 04)
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>05DateObject.html</title>
<script>
var d = new Date();
//var d = new Date(1000*46*365*24*60*60);
//var d = new Date("1991/08/22");
var m = new Date(1998, 2, 04)//注意一月是0、十二月是11
document.write(m+"<br>")
var theYear = d.getFullYear() - 1911;//民國
var theMonth = d.getMonth() + 1;//月份從0開始
var theDate = d.getDate();
//document.write(d);
document.write("民國" + theYear + "年" + theMonth + "月" + theDate + "日" + "<br>");
var y = new Date(new Date().getTime() - 24 * 60 * 60 * 1000);//尋找昨天
alert("昨天日期:"+y);
</script>
</head>
<body>
</body>
</html>
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