<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script language="javascript">
function back()
{
history.go(-1); //后退1页
}
function forward()
{
history.go(+1); //前进1页
}
function refresh()
{
history.go(-0) //刷新
}
</script>
</head>
<body>
<input type=button value=后退 onClick="back()">
<input type=button value=刷新 onClick="refresh()">
<input type=button value=前进 onClick="forward()">
<br/>
e维网络
<h1 >
安全性最佳做法</h1>
</body>
</html>