diff --git "a/50 \345\274\240\350\265\267\347\221\236/20230909  \345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237.md" "b/50 \345\274\240\350\265\267\347\221\236/20230909  \345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237.md"
index 7060ed7f5034a089ba02e7ec0499f863717b1b2a..0aca77d31ae50ded89009de443ba74f87c29ace7 100644
--- "a/50 \345\274\240\350\265\267\347\221\236/20230909  \345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237.md"	
+++ "b/50 \345\274\240\350\265\267\347\221\236/20230909  \345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237.md"	
@@ -22,6 +22,10 @@
 
 6.数据库维护
 
+通过本次作业我意识到逻辑思维真的很重要
+
+
+
 ```java
 CREATE DATABASE test22 charset utf8;
 use test22;
diff --git "a/50 \345\274\240\350\265\267\347\221\236/20230913  \345\275\261\350\247\206.md" "b/50 \345\274\240\350\265\267\347\221\236/20230913  \345\275\261\350\247\206.md"
new file mode 100644
index 0000000000000000000000000000000000000000..7553a6594ef00e2dae9ea44861ed0dda779c3e0a
--- /dev/null
+++ "b/50 \345\274\240\350\265\267\347\221\236/20230913  \345\275\261\350\247\206.md"	
@@ -0,0 +1,132 @@
+```mysql
+###这次作业让我知道了温故而知新的重要性，以后我要好好复习过去学过的知识，多钻研MySQL，增强自己的逻辑思维能力
+create database test0913 charset utf8;
+use test0913;
+/*==============================================================*/
+/* DBMS name:      MySQL 5.0                                    */
+/* Created on:     2023/9/13 9:03:16                            */
+/*==============================================================*/
+
+
+drop table if exists actor;
+
+drop table if exists country;
+
+drop table if exists evaluate;
+
+drop table if exists language;
+
+drop table if exists movie;
+
+drop table if exists type;
+
+drop table if exists user;
+
+/*==============================================================*/
+/* Table: actor                                                 */
+/*==============================================================*/
+create table actor
+(
+   act_id               int not null auto_increment,
+   director             varchar(10) not null,
+   act_name             varchar(10) not null,
+   act_age              numeric(8,0) not null,
+   act_sex              varchar(10) not null,
+   primary key (act_id)
+);
+insert into actor value (1,'王宝强','王宝强',18,'男');
+/*==============================================================*/
+/* Table: country                                               */
+/*==============================================================*/
+create table country
+(
+   co_id                numeric(8,0) not null,
+   co_name              varchar(10) not null,
+   primary key (co_id)
+);
+insert into country value (1,'中国');
+/*==============================================================*/
+/* Table: evaluate                                              */
+/*==============================================================*/
+create table evaluate
+(
+   evaluate_id          int not null auto_increment,
+   director             varchar(10),
+   user_id              numeric(8,0),
+   evaluate_title       varchar(30) not null,
+   evaluate_time        time not null,
+   state                varchar(10) not null,
+   primary key (evaluate_id)
+);
+insert into evaluate value(2,'王宝强',54,'过往人生',2023=1=21,'已上映');
+/*==============================================================*/
+/* Table: language                                              */
+/*==============================================================*/
+create table language
+(
+  lan_id                 int not null,
+   lan_name             varchar(18) not null,
+   primary key (���Ա�)
+);
+insert into `language` value (1,'汉语') ;
+/*==============================================================*/
+/* Table: movie                                                 */
+/*==============================================================*/
+create table movie
+(
+   director             varchar(10) not null,
+   co_id                numeric(8,0),
+   type                 numeric(10,0),
+   ���Ա��                 int not null,
+   `write`              varchar(10) not null,
+   act                  varchar(10) not null,
+   movie_time           datetime not null,
+   movie_length         date not null,
+   movie_nname          varchar(10) not null,
+   imdb                 varchar(15) not null,
+   primary key (director)
+);
+
+/*==============================================================*/
+/* Table: type                                                  */
+/*==============================================================*/
+create table type
+(
+   type                 numeric(10,0) not null,
+   type_name            varchar(18) not null,
+   primary key (type)
+);
+
+/*==============================================================*/
+/* Table: user                                                  */
+/*==============================================================*/
+create table user
+(
+   user_id              numeric(8,0) not null,
+   user_name            varchar(15) not null,
+   user_sex             varchar(10) not null,
+   user_area            varchar(10) not null,
+   primary key (user_id)
+);
+
+alter table actor add constraint FK_Relationship_4 foreign key (director)
+      references movie (director) on delete restrict on update restrict;
+
+alter table evaluate add constraint FK_Relationship_5 foreign key (director)
+      references movie (director) on delete restrict on update restrict;
+
+alter table evaluate add constraint FK_Relationship_6 foreign key (user_id)
+      references user (user_id) on delete restrict on update restrict;
+
+alter table movie add constraint FK_Relationship_3 foreign key (co_id)
+      references country (co_id) on delete restrict on update restrict;
+
+alter table movie add constraint FK_Relationship_7 foreign key (type)
+      references type (type) on delete restrict on update restrict;
+
+alter table movie add constraint FK_Relationship_8 foreign key (���Ա��)
+      references language (���Ա��) on delete restrict on update restrict;
+
+
+```
+