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+E_R图
+
+![image-20230914112503321](https://s2.loli.net/2023/09/14/hazeIFEfy73VDsn.png)
+
+
+
+# 代码
+
+```MYSQL
+/*==============================================================*/
+/* DBMS name:      MySQL 5.0                                    */
+/* Created on:     2023/9/14 11:17:52                           */
+/*==============================================================*/
+CREATE DATABASE hospital1 charset utf8;
+use hospital1;
+
+drop table if exists aaa;
+
+drop table if exists administrative;
+
+drop table if exists doctor;
+
+drop table if exists doctor_patients;
+
+drop table if exists drug;
+
+drop table if exists hospital;
+
+drop table if exists patients;
+
+drop table if exists patients_reception;
+
+drop table if exists prescription;
+
+drop table if exists prescription_drug;
+
+drop table if exists reception;
+
+/*==============================================================*/
+/* Table: aaa                                                   */
+/*==============================================================*/
+create table aaa
+(
+   durg_id              int not null,
+   reception_id         int not null,
+   primary key (durg_id, reception_id)
+);
+
+/*==============================================================*/
+/* Table: administrative                                        */
+/*==============================================================*/
+create table administrative
+(
+   administrative_id    int not null auto_increment,
+   hospital_id          char(10),
+   administrative����name varchar(40) not null,
+   primary key (administrative_id)
+);
+
+/*==============================================================*/
+/* Table: doctor                                                */
+/*==============================================================*/
+create table doctor
+(
+   doctor_id            int not null auto_increment,
+   administrative_id    int,
+   doctor_name          varchar(20) not null,
+   primary key (doctor_id)
+);
+
+/*==============================================================*/
+/* Table: doctor_patients                                       */
+/*==============================================================*/
+create table doctor_patients
+(
+   patients_id          int not null,
+   doctor_id            int not null,
+   primary key (patients_id, doctor_id)
+);
+
+/*==============================================================*/
+/* Table: drug                                                  */
+/*==============================================================*/
+create table drug
+(
+   durg_id              int not null auto_increment,
+   drug_name            varchar(50) not null,
+   drug_mioney          varchar(100) not null,
+   primary key (durg_id)
+);
+
+/*==============================================================*/
+/* Table: hospital                                              */
+/*==============================================================*/
+create table hospital
+(
+   hospital_id          char(10) not null,
+   hospital_name        varchar(40) not null,
+   primary key (hospital_id)
+);
+
+/*==============================================================*/
+/* Table: patients                                              */
+/*==============================================================*/
+create table patients
+(
+   patients_id          int not null auto_increment,
+   prescribe_id         char(10),
+   patients_name        varchar(20) not null,
+   primary key (patients_id)
+);
+
+/*==============================================================*/
+/* Table: patients_reception                                    */
+/*==============================================================*/
+create table patients_reception
+(
+   patients_id          int not null,
+   reception_id         int not null,
+   primary key (patients_id, reception_id)
+);
+
+/*==============================================================*/
+/* Table: prescription                                          */
+/*==============================================================*/
+create table prescription
+(
+   prescribe_time       char(10) not null,
+   prescribe_id         char(10) not null,
+   doctor_id            int,
+   reception_id         int,
+   patients_id          int,
+   prescribe_amount     char(10) not null,
+   primary key (prescribe_id)
+);
+
+/*==============================================================*/
+/* Table: prescription_drug                                     */
+/*==============================================================*/
+create table prescription_drug
+(
+   durg_id              int not null,
+   prescribe_id         char(10) not null,
+   primary key (durg_id, prescribe_id)
+);
+
+/*==============================================================*/
+/* Table: reception                                             */
+/*==============================================================*/
+create table reception
+(
+   reception_id         int not null auto_increment,
+   reception_name       varchar(10) not null,
+   primary key (reception_id)
+);
+
+alter table aaa add constraint FK_aaa foreign key (durg_id)
+      references drug (durg_id) on delete restrict on update restrict;
+
+alter table aaa add constraint FK_aaa2 foreign key (reception_id)
+      references reception (reception_id) on delete restrict on update restrict;
+
+alter table administrative add constraint FK_Relationship_6 foreign key (hospital_id)
+      references hospital (hospital_id) on delete restrict on update restrict;
+
+alter table doctor add constraint FK_Relationship_7 foreign key (administrative_id)
+      references administrative (administrative_id) on delete restrict on update restrict;
+
+alter table doctor_patients add constraint FK_doctor_patients foreign key (patients_id)
+      references patients (patients_id) on delete restrict on update restrict;
+
+alter table doctor_patients add constraint FK_doctor_patients2 foreign key (doctor_id)
+      references doctor (doctor_id) on delete restrict on update restrict;
+
+alter table patients add constraint FK_prescription_patients2 foreign key (prescribe_id)
+      references prescription (prescribe_id) on delete restrict on update restrict;
+
+alter table patients_reception add constraint FK_patients_reception foreign key (patients_id)
+      references patients (patients_id) on delete restrict on update restrict;
+
+alter table patients_reception add constraint FK_patients_reception2 foreign key (reception_id)
+      references reception (reception_id) on delete restrict on update restrict;
+
+alter table prescription add constraint FK_doctor_prescribe foreign key (doctor_id)
+      references doctor (doctor_id) on delete restrict on update restrict;
+
+alter table prescription add constraint FK_prescription_patients foreign key (patients_id)
+      references patients (patients_id) on delete restrict on update restrict;
+
+alter table prescription add constraint FK_price_statistics foreign key (reception_id)
+      references reception (reception_id) on delete restrict on update restrict;
+
+alter table prescription_drug add constraint FK_prescription_drug foreign key (durg_id)
+      references drug (durg_id) on delete restrict on update restrict;
+
+alter table prescription_drug add constraint FK_prescription_drug2 foreign key (prescribe_id)
+      references prescription (prescribe_id) on delete restrict on update restrict;
+