前言：
效果：
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8" />
<title>Document</title>
</head>
<body>
<script>
function formatDate() {
now = new Date().getTime();
return now
}
console.log(formatDate());//当前时间戳
</script>
</body>
</html>
![软件测试丨Python学习笔记之内置库科学计算、日期与时间处理[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)