ShowMsg("成功退出登录!","javascript:history.back(-1)",0,2000);
ShowMsg("成功退出登录!",$_SERVER['HTTP_REFERER'],0,2000);
$_SERVER['HTTP_REFERER'] 是上一页的url
ShowMsg("成功退出登录!","javascript:history.back(-1)",0,2000);
ShowMsg("成功退出登录!",$_SERVER['HTTP_REFERER'],0,2000);
$_SERVER['HTTP_REFERER'] 是上一页的url