方式一：
<script language="javascript" type="text/javascript">
window.location.href="index.php";
</script>方式二：
<script language="javascript">
history.back();
</script>方式三：
<script language="javascript">
history.go(-1);
</script>方式四：
<script language="javascript">
window.navigate("index.php");
</script>方式五：
<script language="javascript">
self.location='index.php';
</script>方式六：
<script language="javascript">
top.location='index.php';
</script>