<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!-- tell the browser what charset to use -->
<meta http-equiv="Refresh" Content="3;Url=http://www.baidu.com">
<!--Turn to baidu three seconds later , but we do not use this-->
<title>meta</title>
</head>
<body>
</body>
</html>原文：https://www.cnblogs.com/liujun5319/p/9657865.html