zhangjingyu 
帖子点亮插件在后台有一个设置是否扣除点亮者的积分，同时无论开启与否，被点亮者都增加相应的积分。不过，之前未开启过，但测试时注意到被点亮者的积分并没有增加。由于修改完成，于是今天开始测试积分扣除。然而，开启后进行测试，一直提示“您的积分不足，无法点亮本帖！”。更换积分类型，测试了好几次都不行，看来应该是文件有问题。还是令人头疼的php文件，不过这回还好，相应的代码不算复杂，能猜个八九。贴上完整代码：
function setflight($pid,$tid,$uid){
                global $winduid;
                if(!$winduid){
                        showmsg("对不起，点亮前请先登录！");
                }
                $this->checkflight($pid,$tid,$winduid,$uid);
                if($this->config[pay]){
                        if($this->config[ispay]){
                                $mycredit = $this->credit->get($winduid,$this->config['paytype']);
                                if($mycredit < $this->config['pay']){
                                        showmsg("您的积分不足，无法点亮本帖！");
                                }else{
                                        $this->credit->set($winduid,$this->config['paytype'],-$this->config['pay']);
                                }
                        }
                        $this->credit->set($uid,$this->config['paytype'],$this->config['pay']);
                }
                $this->db->update("update pw_posts set flight=flight+1 where tid='$tid' and pid='$pid'");
                if($this->config['maxflight']){