diff --git "a/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/Student.java" "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/Student.java"
new file mode 100644
index 0000000000000000000000000000000000000000..2a92fa9db31e74724bd5e0049f94470a22c356ca
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/Student.java"
@@ -0,0 +1,41 @@
+package com.java.minxi.java_20240524.java_2302_胡莹莹_2344310238;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class Student {
+    public static void main(String[] args) {
+        Connection conn = null;
+        Statement stmt = null;
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+            String url = "jdbc:mysql://127.0.0.1:3306/student?serverTimezone=Asia/Shanghai";
+            String userName = "root";
+            String password = "123456";
+            conn = DriverManager.getConnection(url, userName, password);
+            String sql = "select * from teacher_info";
+            String sql2 ="select * from teacher_info where id = 1 && teacher_age =35";
+            stmt = conn.createStatement();
+            ResultSet resultSet = stmt.executeQuery(sql);
+            System.out.println("id\t\tteacher_name\tteacher_age");
+            while (resultSet.next()){
+                int id = resultSet.getInt("id");
+                String name = resultSet.getString("teacher_name");
+                int age = resultSet.getInt("teacher_age");
+                System.out.println(id+"\t\t"+name+"\t\t\t\t"+age);
+            }
+        }
+        catch (Exception e){
+            e.printStackTrace();
+        }finally {
+            try {
+                stmt.close();
+                conn.close();
+            }catch (Exception e){
+                e.printStackTrace();
+            }
+        }
+    }
+}
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/druip.java" "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/druip.java"
new file mode 100644
index 0000000000000000000000000000000000000000..4d41ebeb10fb186d4000794c975a1b2829e94664
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/druip.java"
@@ -0,0 +1,34 @@
+package com.java.minxi.java_20240524.java_2302_胡莹莹_2344310238;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.Statement;
+
+public class druip {
+    public static void main(String[] args) {
+        Connection conn = null;
+        Statement stmt = null;
+        try{
+        String url = "jdbc:mysql://127.0.0.1:3306/student?serverTimezone=Asia/Shanghai";
+        String userName = "root";
+        String password = "123456";
+        conn = DriverManager.getConnection(url,userName,password);
+        stmt = conn.createStatement();
+        String sql ="update teacher_info set teacher_name ='小严' where id = 3";
+        int count = stmt.executeUpdate(sql);
+            if (count > 0) {
+                System.out.println("执行成功");
+            }
+        }
+        catch (Exception e){
+            e.printStackTrace();
+        }finally {
+            try {
+                stmt.close();
+                conn.close();
+            }catch (Exception e){
+                e.printStackTrace();
+            }
+        }
+    }
+    }
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/er.java" "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/er.java"
new file mode 100644
index 0000000000000000000000000000000000000000..a1dccf1e78680d0b3decc1beec7bd97aa708e223
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\350\203\241\350\216\271\350\216\271_2344310238/er.java"
@@ -0,0 +1,40 @@
+package com.java.minxi.java_20240524.java_2302_胡莹莹_2344310238;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class er {
+    public static void main(String[] args) {
+        Connection conn = null;
+        Statement stmt = null;
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+            String url = "jdbc:mysql://127.0.0.1:3306/student?serverTimezone=Asia/Shanghai";
+            String userName = "root";
+            String password = "123456";
+            conn = DriverManager.getConnection(url, userName, password);
+            String sql ="select * from teacher_info where id = 1 && teacher_age =35";
+            stmt = conn.createStatement();
+            ResultSet resultSet = stmt.executeQuery(sql);
+            System.out.println("id\t\tteacher_name\tteacher_age");
+            while (resultSet.next()){
+                int id = resultSet.getInt("id");
+                String name = resultSet.getString("teacher_name");
+                int age = resultSet.getInt("teacher_age");
+                System.out.println(id+"\t\t"+name+"\t\t\t\t"+age);
+            }
+        }
+        catch (Exception e){
+            e.printStackTrace();
+        }finally {
+            try {
+                stmt.close();
+                conn.close();
+            }catch (Exception e){
+                e.printStackTrace();
+            }
+        }
+    }
+}