<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>页面刷新按钮</title>
<script>
function renovates() {
document.location.reload();
}
</script>
</head>
<body onload="alert('页面刷新了！');">
<p align="center"><input type="button" value="刷新" name="renovates" onclick="renovates()" /></p>
</body>
</html>