diff --git "a/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main.java" "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main.java"
new file mode 100644
index 0000000000000000000000000000000000000000..1b023dba625d52cb1daf946f9bb2e3c1c93b034a
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main.java"
@@ -0,0 +1,29 @@
+package com.java.minxi.java_20240524.java_2302_刘贤国_2344310219;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class Main {
+    public static void main(String[] args) {
+        String url="jdbc:mysql://localhost:3306/student?serverTimezone=Asia/Shanghai";
+        String username="root";
+        String password="123456";
+
+        Connection connection= DriverManager.getConnection(url,username,password);
+        String sql ="Select*from teacher_info";
+
+        Statement stat= connection.createStatement();
+
+        ResultSet resultset= stat.executeQuery(sql);
+
+        while(resultset.next()){
+            int id= resultset.getInt("id");
+            String name= resultset.getNString("teacher_teacher");
+            int age= resultset.getInt("teacher_age");
+            System.out.println(id+name+age);
+        }
+
+    }
+}
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main1.java" "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main1.java"
new file mode 100644
index 0000000000000000000000000000000000000000..09e61a6807c31566c8f1de41d05ff28b519163cb
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main1.java"
@@ -0,0 +1,29 @@
+package com.java.minxi.java_20240524.java_2302_刘贤国_2344310219;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class Main1 {
+    public static void main(String[] args) {
+        String url="jdbc:mysql://localhost:3306/student?serverTimezone=Asia/Shanghai";
+        String username="root";
+        String password="123456";
+
+        Connection connection= DriverManager.getConnection(url,username,password);
+        String sql ="select * from teacher_info where id=1 and teacher_age=35";
+
+        Statement stat= connection.createStatement();
+
+        ResultSet resultset= stat.executeQuery(sql);
+
+        while(resultset.next()){
+            int id= resultset.getInt(1);
+            String name= resultset.getNString(2);
+            int age= resultset.getInt(3);
+            System.out.println(id+name+age);
+            System.out.println(id+name+age);
+        }
+    }
+}
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main2.java" "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..cf41ca5f2673abe4bda0723fad832ee1e64fd6b7
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\345\210\230\350\264\244\345\233\275_2344310219/Main2.java"
@@ -0,0 +1,24 @@
+package com.java.minxi.java_20240524.java_2302_刘贤国_2344310219;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class Main2 {
+    public static void main(String[] args) {
+        String url="jdbc:mysql://localhost:3306/student?serverTimezone=Asia/Shanghai";
+        String username="root";
+        String password="123456";
+
+        Connection connection= DriverManager.getConnection(url,username,password);
+        String sql ="update teacher_info set teacher_name='小严' where id=3;";
+
+        Statement stat= connection.createStatement();
+
+        ResultSet resultset= stat.executeQuery(sql);
+
+        int i=stat.executeUpdate(sql);
+        }
+    }
+}