diff --git a/sql/v2.0.0.sql b/sql/v2.0.0.sql
new file mode 100644
index 0000000..8333a2c
--- /dev/null
+++ b/sql/v2.0.0.sql
@@ -0,0 +1,53 @@
+create database if not exists education_administration_system default character set utf8mb4 collate utf8mb4_0900_ai_ci;
+
+use education_administration_system;
+
+create table if not exists Faculty(
+    id char(15) primary key comment '职工号',
+    name varchar(15) not null comment '姓名',
+    password varchar(40) not null comment '密码(SHA加密)',
+    sex char(5) not null comment '性别',
+    birth date comment '出生年月日',
+    department varchar(30) not null comment '部门/所在系',
+    title varchar(15) comment '职称'
+);
+
+create table if not exists Student(
+    id char(15) primary key comment '学号',
+    name varchar(15) not null comment '姓名',
+    password varchar(40) not null comment '密码(SHA加密)',
+    sex char(5) not null comment '性别',
+    birth date comment '出生年月日',
+    department varchar(30) not null comment '所在系',
+    grade int not null comment '年级',
+    stuClass varchar(20) not null comment '班级'
+);
+
+create table if not exists Course(
+    id char(8) primary key comment '课程号',
+    name varchar(30) not null comment '课程名',
+    credit int not null comment '学分',
+    cnt int not null comment '选课人数'
+);
+
+create table if not exists SelectCourse(
+    courseId char(8) comment '课程号',
+    studentId char(15) comment '学生学号',
+    grade decimal(5,2) comment '成绩',
+    PRIMARY KEY(courseId,studentId),
+    foreign key(courseId) references Course(id),
+    foreign key(studentId) references Student(id)
+    on update cascade
+    on delete cascade
+);
+
+create table if not exists TeachCourse(
+    courseId char(8) comment '课程号',
+    facultyId char(15) comment '教师工号',
+    location varchar(40) comment '授课地点',
+    primary key(courseId,facultyId),
+    foreign key(courseId) references Course(id),
+    foreign key(facultyId) references Faculty(id)
+    on update cascade
+    on delete cascade
+);
diff --git a/src/main/java/cn/czyx007/eas_gui/bean/Course.java b/src/main/java/cn/czyx007/eas_gui/bean/Course.java
new file mode 100644
index 0000000..60de2e2
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/bean/Course.java
@@ -0,0 +1,64 @@
+package cn.czyx007.eas_gui.bean;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 20:19
+ */
+public class Course {
+    private String id;//课程号
+    private String name;//课程名
+    private Integer credit;//学分
+    private Integer cnt;//选科人数
+
+    public Course() {
+    }
+
+    public Course(String id, String name, Integer credit, Integer cnt) {
+        this.id = id;
+        this.name = name;
+        this.credit = credit;
+        this.cnt = cnt;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getCredit() {
+        return credit;
+    }
+
+    public void setCredit(Integer credit) {
+        this.credit = credit;
+    }
+
+    public Integer getCnt() {
+        return cnt;
+    }
+
+    public void setCnt(Integer cnt) {
+        this.cnt = cnt;
+    }
+
+    @Override
+    public String toString() {
+        return "Course{" +
+                "id='" + id + '\'' +
+                ", name='" + name + '\'' +
+                ", credit=" + credit +
+                ", cnt=" + cnt +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/bean/Faculty.java b/src/main/java/cn/czyx007/eas_gui/bean/Faculty.java
index b795550..346dd20 100644
--- a/src/main/java/cn/czyx007/eas_gui/bean/Faculty.java
+++ b/src/main/java/cn/czyx007/eas_gui/bean/Faculty.java
@@ -1,5 +1,7 @@
 package cn.czyx007.eas_gui.bean;
 
+import java.time.LocalDate;
+
 /**
  * @author : 张宇轩
  * @createTime : 2022/6/24 - 22:05
@@ -8,16 +10,20 @@ public class Faculty {
     private String id;//职工号
     private String name;//姓名
     private String password;//密码
+    private String sex;//性别
+    private LocalDate birth;//出生年月日
     private String department;// 部门 / 所在系
     private String title;//职称
 
     public Faculty() {
     }
 
-    public Faculty(String id, String name, String password, String department, String title) {
+    public Faculty(String id, String name, String password, String sex, LocalDate birth, String department, String title) {
         this.id = id;
         this.name = name;
         this.password = password;
+        this.sex = sex;
+        this.birth = birth;
         this.department = department;
         this.title = title;
     }
@@ -62,12 +68,30 @@ public class Faculty {
         this.title = title;
     }
 
+    public String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    public LocalDate getBirth() {
+        return birth;
+    }
+
+    public void setBirth(LocalDate birth) {
+        this.birth = birth;
+    }
+
     @Override
     public String toString() {
         return "Faculty{" +
                 "id='" + id + '\'' +
                 ", name='" + name + '\'' +
                 ", password='" + password + '\'' +
+                ", sex='" + sex + '\'' +
+                ", birth=" + birth +
                 ", department='" + department + '\'' +
                 ", title='" + title + '\'' +
                 '}';
diff --git a/src/main/java/cn/czyx007/eas_gui/bean/SelectCourse.java b/src/main/java/cn/czyx007/eas_gui/bean/SelectCourse.java
new file mode 100644
index 0000000..8fc20ac
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/bean/SelectCourse.java
@@ -0,0 +1,53 @@
+package cn.czyx007.eas_gui.bean;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 20:20
+ */
+public class SelectCourse {
+    private String courseId;//课程号
+    private String studentId;//学生学号
+    private Double grade;//成绩
+
+    public SelectCourse() {
+    }
+
+    public SelectCourse(String courseId, String studentId, Double grade) {
+        this.courseId = courseId;
+        this.studentId = studentId;
+        this.grade = grade;
+    }
+
+    public String getCourseId() {
+        return courseId;
+    }
+
+    public void setCourseId(String courseId) {
+        this.courseId = courseId;
+    }
+
+    public String getStudentId() {
+        return studentId;
+    }
+
+    public void setStudentId(String studentId) {
+        this.studentId = studentId;
+    }
+
+    public Double getGrade() {
+        return grade;
+    }
+
+    public void setGrade(Double grade) {
+        this.grade = grade;
+    }
+
+    @Override
+    public String toString() {
+        return "SelectCourse{" +
+                "courseId='" + courseId + '\'' +
+                ", studentId='" + studentId + '\'' +
+                ", grade=" + grade +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/bean/Student.java b/src/main/java/cn/czyx007/eas_gui/bean/Student.java
index 2e7981b..0393e25 100644
--- a/src/main/java/cn/czyx007/eas_gui/bean/Student.java
+++ b/src/main/java/cn/czyx007/eas_gui/bean/Student.java
@@ -1,5 +1,7 @@
 package cn.czyx007.eas_gui.bean;
 
+import java.time.LocalDate;
+
 /**
  * @author : 张宇轩
  * @createTime : 2022/6/24 - 22:07
@@ -8,6 +10,8 @@ public class Student {
     private String id;//学号
     private String name;//姓名
     private String password;//密码
+    private String sex;//性别
+    private LocalDate birth;//出生年月日
     private String department;//所在系
     private Integer grade;//年级
     private String stuClass;//班级
@@ -15,10 +19,12 @@ public class Student {
     public Student() {
     }
 
-    public Student(String id, String name, String password, String department, Integer grade, String stuClass) {
+    public Student(String id, String name, String password, String sex, LocalDate birth, String department, Integer grade, String stuClass) {
         this.id = id;
         this.name = name;
         this.password = password;
+        this.sex = sex;
+        this.birth = birth;
         this.department = department;
         this.grade = grade;
         this.stuClass = stuClass;
@@ -72,12 +78,30 @@ public class Student {
         this.stuClass = stuClass;
     }
 
+    public String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    public LocalDate getBirth() {
+        return birth;
+    }
+
+    public void setBirth(LocalDate birth) {
+        this.birth = birth;
+    }
+
     @Override
     public String toString() {
         return "Student{" +
                 "id='" + id + '\'' +
                 ", name='" + name + '\'' +
                 ", password='" + password + '\'' +
+                ", sex='" + sex + '\'' +
+                ", birth=" + birth +
                 ", department='" + department + '\'' +
                 ", grade=" + grade +
                 ", stuClass='" + stuClass + '\'' +
diff --git a/src/main/java/cn/czyx007/eas_gui/bean/TeachCourse.java b/src/main/java/cn/czyx007/eas_gui/bean/TeachCourse.java
new file mode 100644
index 0000000..7657f1b
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/bean/TeachCourse.java
@@ -0,0 +1,53 @@
+package cn.czyx007.eas_gui.bean;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 20:21
+ */
+public class TeachCourse {
+    private String courseId;//课程号
+    private String facultyId;//教师工号
+    private String location;//授课地点
+
+    public TeachCourse() {
+    }
+
+    public TeachCourse(String courseId, String facultyId, String location) {
+        this.courseId = courseId;
+        this.facultyId = facultyId;
+        this.location = location;
+    }
+
+    public String getCourseId() {
+        return courseId;
+    }
+
+    public void setCourseId(String courseId) {
+        this.courseId = courseId;
+    }
+
+    public String getFacultyId() {
+        return facultyId;
+    }
+
+    public void setFacultyId(String facultyId) {
+        this.facultyId = facultyId;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    @Override
+    public String toString() {
+        return "TeachCourse{" +
+                "courseId='" + courseId + '\'' +
+                ", facultyId='" + facultyId + '\'' +
+                ", location='" + location + '\'' +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/BaseDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/BaseDAO.java
index bc8d943..08f6fd5 100644
--- a/src/main/java/cn/czyx007/eas_gui/dao/BaseDAO.java
+++ b/src/main/java/cn/czyx007/eas_gui/dao/BaseDAO.java
@@ -5,7 +5,10 @@ import cn.czyx007.eas_gui.dbc.JDBCUtils;
 import java.lang.reflect.Field;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
+import java.math.BigDecimal;
 import java.sql.*;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
 import java.util.ArrayList;
 import java.util.List;
 import java.sql.Connection;
@@ -78,6 +81,12 @@ public abstract class BaseDAO<T> {
                 T t = clazz.newInstance();
                 for (int i = 0; i < columnCount; i++) {
                     Object columnValue = resultSet.getObject(i + 1);
+                    if (columnValue instanceof BigDecimal){
+                        columnValue = Double.parseDouble(columnValue.toString());
+                    }
+                    if (columnValue instanceof LocalDateTime){
+                        columnValue = Date.from(((LocalDateTime) columnValue).atZone(ZoneId.systemDefault()).toInstant());
+                    }
 
                     //获取列的别名（没有起别名时默认就是列名）
                     String columnLabel = metaData.getColumnLabel(i + 1);
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/CourseDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/CourseDAO.java
new file mode 100644
index 0000000..8a9dee0
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/CourseDAO.java
@@ -0,0 +1,27 @@
+package cn.czyx007.eas_gui.dao;
+
+import cn.czyx007.eas_gui.bean.Course;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 20:47
+ */
+public interface CourseDAO {
+    //添加一门课程
+    boolean addCourse(Connection connection, Course course);
+    //删除一门课程
+    boolean deleteCourse(Connection connection,String id);
+    //修改课程学分
+    boolean updateCourseCredit(Connection connection,String id,Integer credit);
+    //修改选课人数
+    boolean updateCourseChooseCnt(Connection connection,String id,int change);
+    //根据课程号查询课程
+    Course searchCourseById(Connection connection,String id);
+    //根据课程名查询课程
+    List<Course> searchCourseByName(Connection connection,String name);
+    //查询所有课程
+    List<Course> searchAllCourse(Connection connection);
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/FacultyDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/FacultyDAO.java
index da07ed6..c4a82c4 100644
--- a/src/main/java/cn/czyx007/eas_gui/dao/FacultyDAO.java
+++ b/src/main/java/cn/czyx007/eas_gui/dao/FacultyDAO.java
@@ -16,11 +16,15 @@ public interface FacultyDAO {
     //根据职工号删除一名教职工
     boolean deleteFaculty(Connection connection,String id);
     //根据职工号更新一名教职工的信息
-    boolean updateFaculty(Connection connection,String id,String password,String department,String title);
+    boolean updateFaculty(Connection connection,String id,String department,String title);
     //根据职工号查找一名教职工
     Faculty getFacultyById(Connection connection,String id);
     //根据姓名查找匹配的教职工
     List<Faculty> getFacultyByName(Connection connection,String name);
+    //查询所有教职工
+    List<Faculty> getAllFaculty(Connection connection);
     //检查职工号与密码是否匹配
     Long checkPassword(Connection connection,String id,String password);
+    //根据工号修改密码
+    boolean changePassword(Connection connection,String id,String newPassword);
 }
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/SelectCourseDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/SelectCourseDAO.java
new file mode 100644
index 0000000..b9a0ab4
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/SelectCourseDAO.java
@@ -0,0 +1,32 @@
+package cn.czyx007.eas_gui.dao;
+
+import cn.czyx007.eas_gui.bean.Course;
+import cn.czyx007.eas_gui.bean.SelectCourse;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 21:24
+ */
+public interface SelectCourseDAO {
+    //添加一条选课信息
+    boolean addSelectCourse(Connection connection, SelectCourse selectcourse);
+    //删除一条选课信息
+    boolean deleteSelectCourse(Connection connection,String courseId,String studentId);
+    //删除某课程选课信息
+    boolean deleteSelectCourseByCourse(Connection connection,String courseId);
+    //删除某学生选课信息
+    boolean deleteSelectCourseByStudent(Connection connection,String studentId);
+    //修改课程成绩
+    boolean updateSelectCourseGrade(Connection connection,String courseId,String studentId,Integer grade);
+    //查询某人某科成绩
+    SelectCourse searchOnesSelectCourse(Connection connection,String courseId,String studentId);
+    //根据课程号查询课程
+    List<SelectCourse> searchSelectCourseByCourseId(Connection connection,String courseId);
+    //根据学名查询课程
+    List<SelectCourse> searchSelectCourseByStudentId(Connection connection, String studentId);
+    //查询所有课程
+    List<SelectCourse> searchAllSelectCourse(Connection connection);
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/StudentDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/StudentDAO.java
index 93029ed..187127e 100644
--- a/src/main/java/cn/czyx007/eas_gui/dao/StudentDAO.java
+++ b/src/main/java/cn/czyx007/eas_gui/dao/StudentDAO.java
@@ -16,11 +16,15 @@ public interface StudentDAO {
     //根据学号删除一名学生
     boolean deleteStudent(Connection connection,String id);
     //根据学号更新一名学生的信息
-    boolean updateStudent(Connection connection,String id,String password,String department,Integer grade,String stuClass);
+    boolean updateStudent(Connection connection,String id,String department,Integer grade,String stuClass);
     //根据学号查找一名学生
     Student getStudentById(Connection connection, String id);
     //根据姓名查找匹配的学生
     List<Student> getStudentByName(Connection connection, String name);
+    //查询所有学生
+    List<Student> getAllStudent(Connection connection);
     //检查学号与密码是否匹配
     Long checkPassword(Connection connection,String id,String password);
+    //根据学号修改密码
+    boolean changePassword(Connection connection,String id,String newPassword);
 }
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/TeachCourseDAO.java b/src/main/java/cn/czyx007/eas_gui/dao/TeachCourseDAO.java
new file mode 100644
index 0000000..3f94094
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/TeachCourseDAO.java
@@ -0,0 +1,32 @@
+package cn.czyx007.eas_gui.dao;
+
+import cn.czyx007.eas_gui.bean.SelectCourse;
+import cn.czyx007.eas_gui.bean.TeachCourse;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 21:39
+ */
+public interface TeachCourseDAO {
+    //添加一条授课信息
+    boolean addTeachCourse(Connection connection, TeachCourse teachCourse);
+    //删除一条授课信息
+    boolean deleteTeachCourse(Connection connection,String courseId,String facultyId);
+    //删除某课程授课信息
+    boolean deleteTeachCourseByCourse(Connection connection,String courseId);
+    //删除某老师授课信息
+    boolean deleteTeachCourseByFaculty(Connection connection,String facultyId);
+    //修改授课地点
+    boolean updateTeachCourseLocation(Connection connection,String courseId,String facultyId,String location);
+    //查询某老师某课授课地点
+    TeachCourse searchOnesTeachCourse(Connection connection,String courseId,String facultyId);
+    //根据课程号查询授课信息
+    List<TeachCourse> searchTeachCourseByCourseId(Connection connection, String courseId);
+    //根据教师工号查询授课信息
+    List<TeachCourse> searchTeachCourseByFacultyId(Connection connection, String facultyId);
+    //查询所有授课信息
+    List<TeachCourse> searchAllTeachCourse(Connection connection);
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/impl/CourseDAOImpl.java b/src/main/java/cn/czyx007/eas_gui/dao/impl/CourseDAOImpl.java
new file mode 100644
index 0000000..643fbba
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/impl/CourseDAOImpl.java
@@ -0,0 +1,63 @@
+package cn.czyx007.eas_gui.dao.impl;
+
+import cn.czyx007.eas_gui.bean.Course;
+import cn.czyx007.eas_gui.dao.BaseDAO;
+import cn.czyx007.eas_gui.dao.CourseDAO;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 21:14
+ */
+public class CourseDAOImpl extends BaseDAO<Course> implements CourseDAO {
+    @Override
+    public boolean addCourse(Connection connection, Course course) {
+        //language=MySQL
+        String sql = "insert into education_administration_system.course values (?,?,?,?)";
+        return update(connection,sql,course.getId(),course.getName(),course.getCredit(),course.getCnt()) > 0;
+    }
+
+    @Override
+    public boolean deleteCourse(Connection connection, String id) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.course where id = ?";
+        return update(connection,sql,id) > 0;
+    }
+
+    @Override
+    public boolean updateCourseCredit(Connection connection, String id, Integer credit) {
+        //language=MySQL
+        String sql = "update education_administration_system.course set credit = ? where id = ?";
+        return update(connection,sql,credit,id) > 0;
+    }
+
+    @Override
+    public boolean updateCourseChooseCnt(Connection connection, String id, int change) {
+        //language=MySQL
+        String sql = "update education_administration_system.course set cnt = cnt + ? where id = ?";
+        return update(connection,sql,change,id) > 0;
+    }
+
+    @Override
+    public Course searchCourseById(Connection connection, String id) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.course where id = ?";
+        return search(connection,sql,id).get(0);
+    }
+
+    @Override
+    public List<Course> searchCourseByName(Connection connection, String name) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.course where name = ?";
+        return search(connection,sql,name);
+    }
+
+    @Override
+    public List<Course> searchAllCourse(Connection connection) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.course";
+        return search(connection,sql);
+    }
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/impl/FacultyDAOImpl.java b/src/main/java/cn/czyx007/eas_gui/dao/impl/FacultyDAOImpl.java
index d246eb1..5c44dc9 100644
--- a/src/main/java/cn/czyx007/eas_gui/dao/impl/FacultyDAOImpl.java
+++ b/src/main/java/cn/czyx007/eas_gui/dao/impl/FacultyDAOImpl.java
@@ -15,8 +15,8 @@ public class FacultyDAOImpl extends BaseDAO<Faculty> implements FacultyDAO {
     @Override
     public boolean addFaculty(Connection connection, Faculty faculty) {
         //language=MySQL
-        String sql = "insert into education_administration_system.faculty values (?,?,sha1(?),?,?)";
-        return update(connection, sql, faculty.getId(), faculty.getName(), faculty.getPassword(), faculty.getDepartment(), faculty.getTitle()) > 0;
+        String sql = "insert into education_administration_system.faculty values (?,?,sha1(?),?,?,?,?)";
+        return update(connection, sql, faculty.getId(), faculty.getName(), faculty.getPassword(), faculty.getSex(),faculty.getBirth(), faculty.getDepartment(), faculty.getTitle()) > 0;
     }
 
     @Override
@@ -27,13 +27,10 @@ public class FacultyDAOImpl extends BaseDAO<Faculty> implements FacultyDAO {
     }
 
     @Override
-    public boolean updateFaculty(Connection connection, String id,String password,String department,String title) {
+    public boolean updateFaculty(Connection connection, String id,String department,String title) {
         //language=MySQL
         String sql;
-        if (password != null){
-            sql = "update education_administration_system.faculty set password = sha1(?) where id = ?";
-            return update(connection,sql,password,id) > 0;
-        }else if (department != null){
+        if (department != null){
             sql = "update education_administration_system.faculty set department = ? where id = ?";
             return update(connection,sql,department,id) > 0;
         }else if (title != null){
@@ -57,10 +54,24 @@ public class FacultyDAOImpl extends BaseDAO<Faculty> implements FacultyDAO {
         return search(connection,sql,name);
     }
 
+    @Override
+    public List<Faculty> getAllFaculty(Connection connection) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.faculty";
+        return search(connection,sql);
+    }
+
     @Override
     public Long checkPassword(Connection connection, String id, String password) {
         //language=MySQL
         String sql = "select password = sha1(?) from education_administration_system.faculty where id = ?";
         return getValue(connection,sql,password,id);
     }
+
+    @Override
+    public boolean changePassword(Connection connection, String id, String newPassword) {
+        //language=MySQL
+        String sql = "update education_administration_system.faculty set password = sha1(?) where id = ?";
+        return update(connection,newPassword,id) > 0;
+    }
 }
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/impl/SelectCourseDAOImpl.java b/src/main/java/cn/czyx007/eas_gui/dao/impl/SelectCourseDAOImpl.java
new file mode 100644
index 0000000..e368bb1
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/impl/SelectCourseDAOImpl.java
@@ -0,0 +1,78 @@
+package cn.czyx007.eas_gui.dao.impl;
+
+import cn.czyx007.eas_gui.bean.Course;
+import cn.czyx007.eas_gui.bean.SelectCourse;
+import cn.czyx007.eas_gui.dao.BaseDAO;
+import cn.czyx007.eas_gui.dao.SelectCourseDAO;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 21:27
+ */
+public class SelectCourseDAOImpl extends BaseDAO<SelectCourse> implements SelectCourseDAO {
+    @Override
+    public boolean addSelectCourse(Connection connection, SelectCourse selectCourse) {
+        //language=MySQL
+        String sql = "insert into education_administration_system.selectcourse values (?,?,?)";
+        return update(connection,sql,selectCourse.getCourseId(),selectCourse.getStudentId(),selectCourse.getGrade()) > 0;
+    }
+
+    @Override
+    public boolean deleteSelectCourse(Connection connection, String courseId,String studentId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.selectcourse where courseId = ? and studentId = ?";
+        return update(connection,sql,courseId,studentId) > 0;
+    }
+
+    @Override
+    public boolean deleteSelectCourseByCourse(Connection connection, String courseId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.selectcourse where courseId = ?";
+        return update(connection,sql,courseId) > 0;
+    }
+
+    @Override
+    public boolean deleteSelectCourseByStudent(Connection connection, String studentId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.selectcourse where studentId = ?";
+        return update(connection,sql,studentId) > 0;
+    }
+
+    @Override
+    public boolean updateSelectCourseGrade(Connection connection, String courseId, String studentId,Integer grade) {
+        //language=MySQL
+        String sql = "update education_administration_system.selectcourse set grade = ? where courseId = ? and studentId = ?";
+        return update(connection,sql,grade,courseId,studentId) > 0;
+    }
+
+    @Override
+    public SelectCourse searchOnesSelectCourse(Connection connection, String courseId, String studentId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.selectcourse where courseId = ? and studentId = ?";
+        return search(connection,sql,courseId,studentId).get(0);
+    }
+
+    @Override
+    public List<SelectCourse> searchSelectCourseByCourseId(Connection connection, String courseId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.selectcourse where courseId = ?";
+        return search(connection,sql,courseId);
+    }
+
+    @Override
+    public List<SelectCourse> searchSelectCourseByStudentId(Connection connection, String studentId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.selectcourse where studentId = ?";
+        return search(connection,sql,studentId);
+    }
+
+    @Override
+    public List<SelectCourse> searchAllSelectCourse(Connection connection) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.selectcourse";
+        return search(connection,sql);
+    }
+}
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/impl/StudentDAOImpl.java b/src/main/java/cn/czyx007/eas_gui/dao/impl/StudentDAOImpl.java
index 3a6e9c3..7dd095c 100644
--- a/src/main/java/cn/czyx007/eas_gui/dao/impl/StudentDAOImpl.java
+++ b/src/main/java/cn/czyx007/eas_gui/dao/impl/StudentDAOImpl.java
@@ -15,8 +15,8 @@ public class StudentDAOImpl extends BaseDAO<Student> implements StudentDAO {
     @Override
     public boolean addStudent(Connection connection, Student student) {
         //language=MySQL
-        String sql = "insert into education_administration_system.student values (?,?,sha1(?),?,?,?)";
-        return update(connection,sql,student.getId(),student.getName(),student.getPassword(),student.getDepartment(),student.getGrade(),student.getStuClass()) > 0;
+        String sql = "insert into education_administration_system.student values (?,?,sha1(?),?,?,?,?,?)";
+        return update(connection,sql,student.getId(),student.getName(),student.getPassword(),student.getSex(),student.getBirth(),student.getDepartment(),student.getGrade(),student.getStuClass()) > 0;
     }
 
     @Override
@@ -27,13 +27,10 @@ public class StudentDAOImpl extends BaseDAO<Student> implements StudentDAO {
     }
 
     @Override
-    public boolean updateStudent(Connection connection, String id, String password, String department, Integer grade, String stuClass) {
+    public boolean updateStudent(Connection connection, String id, String department, Integer grade, String stuClass) {
         //language=MySQL
         String sql;
-        if (password != null){
-            sql = "update education_administration_system.student set password = sha1(?) where id = ?";
-            return update(connection,sql,password,id) > 0;
-        }else if (department != null){
+        if (department != null){
             sql = "update education_administration_system.student set department = ? where id = ?";
             return update(connection,sql,department,id) > 0;
         }else if (grade != null){
@@ -60,10 +57,24 @@ public class StudentDAOImpl extends BaseDAO<Student> implements StudentDAO {
         return search(connection,sql,name);
     }
 
+    @Override
+    public List<Student> getAllStudent(Connection connection) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.student";
+        return search(connection,sql);
+    }
+
     @Override
     public Long checkPassword(Connection connection, String id, String password) {
         //language=MySQL
         String sql = "select password = sha1(?) from education_administration_system.student where id = ?";
         return getValue(connection,sql,password,id);
     }
+
+    @Override
+    public boolean changePassword(Connection connection, String id, String newPassword) {
+        //language=MySQL
+        String sql = "update education_administration_system.student set password = sha1(?) where id = ?";
+        return update(connection,newPassword,id) > 0;
+    }
 }
diff --git a/src/main/java/cn/czyx007/eas_gui/dao/impl/TeachCourseDAOImpl.java b/src/main/java/cn/czyx007/eas_gui/dao/impl/TeachCourseDAOImpl.java
new file mode 100644
index 0000000..1fa6158
--- /dev/null
+++ b/src/main/java/cn/czyx007/eas_gui/dao/impl/TeachCourseDAOImpl.java
@@ -0,0 +1,77 @@
+package cn.czyx007.eas_gui.dao.impl;
+
+import cn.czyx007.eas_gui.bean.TeachCourse;
+import cn.czyx007.eas_gui.dao.BaseDAO;
+import cn.czyx007.eas_gui.dao.TeachCourseDAO;
+
+import java.sql.Connection;
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/6/25 - 21:43
+ */
+public class TeachCourseDAOImpl extends BaseDAO<TeachCourse> implements TeachCourseDAO {
+    @Override
+    public boolean addTeachCourse(Connection connection, TeachCourse teachCourse) {
+        //language=MySQL
+        String sql = "insert into education_administration_system.teachcourse values (?,?,?)";
+        return update(connection,sql,teachCourse.getCourseId(),teachCourse.getFacultyId(),teachCourse.getLocation()) > 0;
+    }
+
+    @Override
+    public boolean deleteTeachCourse(Connection connection, String courseId, String facultyId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.teachcourse where courseId = ? and facultyId = ?";
+        return update(connection,sql,courseId,facultyId) > 0;
+    }
+
+    @Override
+    public boolean deleteTeachCourseByCourse(Connection connection, String courseId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.teachcourse where courseId = ?";
+        return update(connection,sql,courseId) > 0;
+    }
+
+    @Override
+    public boolean deleteTeachCourseByFaculty(Connection connection, String facultyId) {
+        //language=MySQL
+        String sql = "delete from education_administration_system.teachcourse where facultyId = ?";
+        return update(connection,sql,facultyId) > 0;
+    }
+
+    @Override
+    public boolean updateTeachCourseLocation(Connection connection, String courseId, String facultyId, String location) {
+        //language=MySQL
+        String sql = "update education_administration_system.teachcourse set location = ? where courseId = ? and facultyId = ?";
+        return update(connection,sql,location,courseId,facultyId) > 0;
+    }
+
+    @Override
+    public TeachCourse searchOnesTeachCourse(Connection connection, String courseId, String facultyId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.teachcourse where courseId = ? and facultyId = ?";
+        return search(connection,sql,courseId,facultyId).get(0);
+    }
+
+    @Override
+    public List<TeachCourse> searchTeachCourseByCourseId(Connection connection, String courseId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.teachcourse where courseId = ?";
+        return search(connection,sql,courseId);
+    }
+
+    @Override
+    public List<TeachCourse> searchTeachCourseByFacultyId(Connection connection, String facultyId) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.teachcourse where facultyId = ?";
+        return search(connection,sql,facultyId);
+    }
+
+    @Override
+    public List<TeachCourse> searchAllTeachCourse(Connection connection) {
+        //language=MySQL
+        String sql = "select * from education_administration_system.teachcourse";
+        return search(connection,sql);
+    }
+}