'javascript:history.back

Question

<script language="javascript">
setTimeout("location.href='javascript:history.back(-2)'",8000);
</script>

Answer 1

A
  \
    C --D
  /
B现在从D返回两级 可能是 A  或者 B<script language="javascript">
setTimeout("location.href='javascript:history.go(-2)'",1000);
                                       ~~~~~~~~~~~~~~
</script>已经解决，谢谢

Answer 2

setTimeout("history.go(-1)",1000);
setTimeout("history.back()",1000);
不要用location.href，这样多走了一步