diff --git "a/work/com/java/minxi/java_20240524/java_2302_\351\231\210\345\206\240\345\256\207_2344310209/MysqlMain.java" "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\345\206\240\345\256\207_2344310209/MysqlMain.java"
new file mode 100644
index 0000000000000000000000000000000000000000..6bfc2f7e7dfbe3bdc328a8f0b2f201736fa4cd15
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\345\206\240\345\256\207_2344310209/MysqlMain.java"
@@ -0,0 +1,123 @@
+package com.java.minxi.java_20240524.java_2302_陈冠宇_2344310209;
+
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.Statement;
+import java.sql.*;
+
+
+public class MysqlMain {
+    public static void main(String[] args) throws Exception {
+        Text1();
+        Text2();
+        Text3();
+    }
+
+
+
+    public static void Text1() throws Exception{
+        Class.forName("com.mysql.cj.jdbc.Driver");
+
+        String url = "jdbc:mysql:///student?serverTimezone=Asia/Shanghai";
+
+        String username = "root";
+
+        String password = "123456";
+
+        Connection conn = DriverManager.getConnection(url, username, password);
+
+        String sql = "select * from teacher_info;";
+
+        Statement stmt = conn.createStatement();
+
+        ResultSet resultSet = stmt.executeQuery(sql);
+
+        System.out.println("所有用户信息:");
+
+
+        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"+age);
+        }
+        System.out.println();
+
+        resultSet.close();
+
+        stmt.close();
+
+        conn.close();
+
+    }
+    private static void Text2() throws Exception{
+
+        String url = "jdbc:mysql:///student?serverTimezone=Asia/Shanghai";
+
+        String username = "root";
+
+        String password = "123456";
+
+        Connection conn = DriverManager.getConnection(url, username, password);
+
+        String sql = "select * from teacher_info where id = 1 && teacher_age = 35;";
+
+        Statement stmt = conn.createStatement();
+
+        ResultSet resultSet = stmt.executeQuery(sql);
+
+
+        System.out.println("id为1，且年龄为35岁的用户:");
+
+        System.out.println("id\t\tteacher_name\tteacher_age");
+
+        while (resultSet.next()){
+
+            int id = resultSet.getInt(1);
+
+            String name = resultSet.getString(2);
+
+            int age = resultSet.getInt(3);
+
+            System.out.println(id+"\t\t"+name+"\t\t\t"+age);
+
+        }
+        System.out.println();
+
+        resultSet.close();
+
+        stmt.close();
+
+        conn.close();
+    }
+
+    private static void Text3() throws Exception {
+
+        String url = "jdbc:mysql:///student?serverTimezone=Asia/Shanghai";
+
+
+        String username = "root";
+
+        String password = "123456";
+
+        Connection conn = DriverManager.getConnection(url, username, password);
+
+        String sql = "update teacher_info set teacher_name = '小严' where id = 3;";
+        Statement stmt = conn.createStatement();
+
+        int i = stmt.executeUpdate(sql);
+        if (i > 0) {
+            System.out.println("执行成功");
+        } else {
+            System.out.println("执行失败");
+        }
+        stmt.close();
+        conn.close();
+    }
+
+
+}