getMessage().'in file:'.$this->getFile().'on line:'.$this->getLine();    }}function reg($reginfo = null){    // 依据不同错误抛出不同异常    if (empty($reginfo) || !isset($reginfo)) {        throw new Exception('参数非法');    }    if (empty($reginfo['email'])) {        throw new emailException('邮件为空');    }    if ($reginfo['pwd'] != $reginfo['repwd']) {        throw new pwdException('两次密码不一致！');    }}// 接收不同异常，并针对性处理！try {   reg(array('email' => '1078789950@qq.com', 'pwd' => '123', 'repwd' => '1231' ));} catch (Exception $e) {    echo $e ->getMessage();} catch (emailException $ee) {    echo $ee ->getMessage();} catch (pwdException $ep) {    echo $ep;}