diff --git "a/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo.java" "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo.java"
new file mode 100644
index 0000000000000000000000000000000000000000..859ec622c7173638e35de1331268f3374ddd1c6c
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo.java"
@@ -0,0 +1,37 @@
+package com.java.minxi.java_20240524.java_2302_陈愈_2344310237;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+
+import java.sql.Statement;
+
+
+public class JdbcDemo {
+    public static void main(String[] args) throws Exception {
+
+        Connection connection = null;
+        Statement statement = null;
+
+
+            Class.forName("com.mysql.cj.jdbc.Driver");
+            String url = "jdbc:mysql://localhost:3306/student?severTimezone=Asia/Shanghai";
+            String username = "root";
+            String password = "123456";
+            connection = DriverManager.getConnection(url, username, password);
+            String sql = "update teacher_info set user_name ='小严' where id = 1;";
+            statement = connection.createStatement();
+            int rs = statement.executeUpdate(sql);
+            if (rs > 0) {
+                System.out.println("执行成功");
+            } else {
+                System.out.println("执行失败");
+            }
+                statement.close();
+                connection.close();
+
+        }
+    }
+
+
+
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo2.java" "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo2.java"
new file mode 100644
index 0000000000000000000000000000000000000000..5769fae14d61a7253bebf6587a65109916f2b66d
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/JdbcDemo2.java"
@@ -0,0 +1,31 @@
+package com.java.minxi.java_20240524.java_2302_陈愈_2344310237;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.Statement;
+
+public class JdbcDemo2 {
+    public static void main(String[] args) throws Exception {
+
+        Connection connection = null;
+        Statement statement = null;
+
+
+        Class.forName("com.mysql.cj.jdbc.Driver");
+        String url = "jdbc:mysql://localhost:3306/student?severTimezone=Asia/Shanghai";
+        String username = "root";
+        String password = "123456";
+        connection = DriverManager.getConnection(url, username, password);
+        String sql = "select * from TABLE ( teacher_info );";
+        statement = connection.createStatement();
+        int rs = statement.executeUpdate(sql);
+        if (rs > 0) {
+            System.out.println("执行成功");
+        } else {
+            System.out.println("执行失败");
+        }
+        statement.close();
+        connection.close();
+
+    }
+}
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/jdbcDemo3.java" "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/jdbcDemo3.java"
new file mode 100644
index 0000000000000000000000000000000000000000..31fa13f6788ca8ee172704329dc9e5e073c700c6
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\351\231\210\346\204\210_2344310237/jdbcDemo3.java"
@@ -0,0 +1,30 @@
+package com.java.minxi.java_20240524.java_2302_陈愈_2344310237;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.Statement;
+
+public class jdbcDemo3 { public static void main(String[] args) throws Exception {
+
+    Connection connection = null;
+    Statement statement = null;
+
+
+    Class.forName("com.mysql.cj.jdbc.Driver");
+    String url = "jdbc:mysql://localhost:3306/student?severTimezone=Asia/Shanghai";
+    String username = "root";
+    String password = "123456";
+    connection = DriverManager.getConnection(url, username, password);
+    String sql = "select * from teacher_info where id = 1 && teacher_age = 35;";
+    statement = connection.createStatement();
+    int rs = statement.executeUpdate(sql);
+    if (rs > 0) {
+        System.out.println("执行成功");
+    } else {
+        System.out.println("执行失败");
+    }
+    statement.close();
+    connection.close();
+
+}
+}