代码示例:(标识:eg_js_date_new_numbers1)
<!DOCTYPE html>
<html>
<body>

<h2>JavaScript new Date()</h2>

<p>一个参数会被解释为:new Date(milliseconds)。</p>

<p id="demo"></p>

<script>
var d = new Date(2018);
document.getElementById("demo").innerHTML = d;
</script>

</body>
</html>
运行结果: