diff --git "a/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\232.md" "b/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..3fb13e9fecce3123f668c3f3f388c34371b64a04
--- /dev/null
+++ "b/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\232.md"	
@@ -0,0 +1,187 @@
+MySQL中创建一个数据库student_db
+
+库中创建student表
+
+1. 表中数据如下
+
+2. | 编号 | 姓名 | 性别 |
+   | ---- | ---- | ---- |
+   | 1    | 张三 | 男   |
+   | 2    | 李四 | 女   |
+   | 3    | 王五 | 男   |
+
+```mysql
+CREATE database student_db charset utf8;
+use student_db;
+CREATE TABLE student(
+id int,
+`name` varchar(20),
+sex char
+);
+INSERT into student VALUES(1,"张三","男"),(2,"李四","女"),(3,"王五","男");
+```
+
+编写java 4个类，分别实现以下功能
+
+1. 查询功能，查询student中所有数据
+2. 添加功能
+
+   3.修改功能
+
+   4.删除功能
+
+```java
+import java.sql.*;
+
+public class Test1 {
+    public static void main(String[] args) {
+        Connection conn=null;
+        Statement sta=null;
+        ResultSet res=null;
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false";
+            String username="root";
+            String password="root";
+             conn = DriverManager.getConnection(url, username, password);
+            String sql="select * from student";
+             sta = conn.createStatement();
+             res = sta.executeQuery(sql);
+            while (res.next()){
+                int id = res.getInt("id");
+                String name=res.getString("name");
+                String sex=res.getString("sex");
+                System.out.println(id+"-"+name+"-"+sex);
+            }
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+            e.printStackTrace();
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+            e.printStackTrace();
+        }
+        try {
+            if (res!=null){
+            res.close();}
+            if (sta!=null){
+            sta.close();}
+            if(conn!=null){
+            conn.close();}
+        } catch (Exception e) {
+            System.out.println("资源释放异常");
+        }
+
+    }
+}
+```
+
+```java
+import java.sql.*;
+
+public class Test2{
+    public static void main(String[] args) {
+
+
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="insert into student values(4,'子豪','男')";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("添加成功");
+            }else {
+                System.out.println("失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+
+
+    }
+}
+
+```
+
+```java
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class Test3{
+    public static void main(String[] args) {
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="update student set name='叶子豪' where id=4";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("修改成功");
+            }else {
+                System.out.println("修改失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+    }
+}
+
+```
+
+```java
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class Test4 {
+    public static void main(String[] args) {
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="delete from student where id=4";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("删除成功");
+            }else {
+                System.out.println("删除失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+    }
+}
+
+```
+
diff --git "a/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\2322.md" "b/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\2322.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ba5677b138715a791dbbbeed7255f56d3cc8faa6
--- /dev/null
+++ "b/54 \345\217\266\345\255\220\350\261\252/JSP\344\275\234\344\270\2322.md"	
@@ -0,0 +1,256 @@
+MySQL中创建一个数据库student_db
+
+库中创建student表
+
+1. 表中数据如下
+
+2. | 编号 | 姓名 | 性别 |
+   | ---- | ---- | ---- |
+   | 1    | 张三 | 男   |
+   | 2    | 李四 | 女   |
+   | 3    | 王五 | 男   |
+
+```mysql
+CREATE database student_db charset utf8;
+use student_db;
+CREATE TABLE student(
+id int,
+`name` varchar(20),
+sex char
+);
+INSERT into student VALUES(1,"张三","男"),(2,"李四","女"),(3,"王五","男");
+```
+
+编写java 4个类，分别实现以下功能
+
+1. 查询功能，查询student中所有数据
+2. 添加功能
+
+   3.修改功能
+
+   4.删除功能
+
+```java
+import java.sql.*;
+
+public class Test1 {
+    public static void main(String[] args) {
+        Connection conn=null;
+        Statement sta=null;
+        ResultSet res=null;
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false";
+            String username="root";
+            String password="root";
+             conn = DriverManager.getConnection(url, username, password);
+            String sql="select * from student";
+             sta = conn.createStatement();
+             res = sta.executeQuery(sql);
+            while (res.next()){
+                int id = res.getInt("id");
+                String name=res.getString("name");
+                String sex=res.getString("sex");
+                System.out.println(id+"-"+name+"-"+sex);
+            }
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+            e.printStackTrace();
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+            e.printStackTrace();
+        }
+        try {
+            if (res!=null){
+            res.close();}
+            if (sta!=null){
+            sta.close();}
+            if(conn!=null){
+            conn.close();}
+        } catch (Exception e) {
+            System.out.println("资源释放异常");
+        }
+
+    }
+}
+```
+
+```java
+import java.sql.*;
+
+public class Test2{
+    public static void main(String[] args) {
+
+
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="insert into student values(4,'子豪','男')";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("添加成功");
+            }else {
+                System.out.println("失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+
+
+    }
+}
+
+```
+
+```java
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class Test3{
+    public static void main(String[] args) {
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="update student set name='叶子豪' where id=4";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("修改成功");
+            }else {
+                System.out.println("修改失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+    }
+}
+
+```
+
+```java
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class Test4 {
+    public static void main(String[] args) {
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            String url="jdbc:mysql://localhost:3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8";
+            String username="root";
+            String password="root";
+            Connection conn = DriverManager.getConnection(url, username, password);
+            String sql="delete from student where id=4";
+            Statement sta = conn.createStatement();
+            int i = sta.executeUpdate(sql);
+            if (i>0){
+                System.out.println("删除成功");
+            }else {
+                System.out.println("删除失败");
+            }
+
+            sta.close();
+            conn.close();
+
+        } catch (ClassNotFoundException e) {
+            System.out.println("驱动包导入错误");
+        } catch (SQLException e) {
+            System.out.println("语法错误");
+        }
+    }
+}
+
+```
+
+~~~java
+public class Test5 {
+    public static void main(String[] args) {
+        ArrayList<Studen> list = new ArrayList<>();
+        String sql="update studen set name='小米' where id=1";
+        int que = ZSG.query(sql);
+        try {
+            System.out.println("修改成功！");
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        for (int i = 0; i <list.size(); i++) {
+            Studen n=list.get(i);
+            System.out.println(n.getId()+":"+n.getName()+"--"+n.getSex());
+        }
+    }
+}
+```
+
+##  属性类
+
+```java
+public class Studen {
+    private String id;
+    private String name;
+    private String sex;
+
+    @Override
+    public String toString() {
+        return "Studen{" +
+                "id='" + id + '\'' +
+                ", name='" + name + '\'' +
+                ", sex='" + sex + '\'' +
+                '}';
+    }
+
+    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 String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    public Studen(int id, String name, String sex) {
+    }
+
+    public Studen(String id, String name, String sex) {
+        this.id = id;
+        this.name = name;
+        this.sex = sex;
+~~~
+