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-Complete hospital outpatient system, authentication, patients can query an appointment, denunciation, view medical records and other operations, doctors can view the patient' s conditio