完备的医院门诊系统，有身份验证，患者可以查询预约，退约，查看病历等操作，医生可查看患者情况，修改病历等，管理员管理医生帐号-comprehensive outpatient hospital system, identity verification, patients can learn about the appointment, denunciation, check medical records, etc, doctors can check patients amend medica