JavaScript实现页面跳转的多种方法详解

window.location.href="http://www.baidu.com" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  
// 等价于    
<a href="http://www.baidu.com" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  target="_self">跳转到百度</a>

window.open("http://www.baidu.com")  
// 等价于 
<a href="http://www.baidu.com" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  target="_blank">跳转到百度</a>

window.history.back(-1)

self.location.href="http://www.baidu.com" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" 

location.href   // 指的是某window对象的url的地址
self.location.href   // 指当前窗口的url地址，去掉self默认为当前窗口的url地址，一般用于防止外部的引用
top.location.href   // 为引用test.html页面url的父窗口对象的url

if(top.location.href!=self.location.href){
       location.href="http://www.a.com" rel="external nofollow" ;
}

<script language="javascript" type="text/javascript">
       window.location.href="http://www.a.com?backurl=" rel="external nofollow"  + window.location.href; 
</script>

<script>window.location.href='http://blog.yoodb.com';</script>

<script language="javascript">
	alert("返回");
	window.history.back(-1);
</script>

<a href="javascript:history.go(-1)" rel="external nofollow" >返回上一步</a>
<a href="<%=Request.ServerVariables(" rel="external nofollow" HTTP_REFERER")%>">返回上一步</a>

<input name="前端知音" type="button" value="前端知音" onClick="location.href='login.do'">

<a href="javascript:" rel="external nofollow"  onClick="window.open('login.do','','height=500,width=611,scrollbars=yes,status=yes')">新窗口</a>

<head>
    <!--只刷新不跳转 -->
    <meta http-equiv="refresh" content="5">
    <!--定时跳转 -->
    <meta http-equiv="refresh" content="5;url=index.html"> 
</head>