1、效果截图：
2、HTML/JQ代码：
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>jQuery获取当前时间(年/月/日 时:分:秒)</title>
</head>
<body>
<script src="js/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
function getNowDateTime(){
var now = new Date();
var year = now.getFullYear();
var month = (now.getMonth() + 1) < 10 ? '0' + (now.getMonth() + 1) : now.getMonth() + 1;
var dates = now.getDate() < 10 ? '0' + now.getDate() : now.getDate();
var hours = now.getHours() < 10 ? "0" + now.getHours() : now.getHours();
var minutes = now.getMinutes() < 10 ? '0' + now.getMinutes() : now.getMinutes();
var seconds = now.getSeconds() < 10 ? '0' + now.getSeconds() : now.getSeconds();
return year + "/" + month + "/" + dates + " " + hours + ":" + minutes + ":" + seconds;
}
$(function(){
console.log(getNowDateTime());
})
</script>
</html>