diff --git "a/work/com/java/minxi/java_20240516/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0516.java" "b/work/com/java/minxi/java_20240516/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0516.java"
index 7c739c522d084494f54dbb5fd96a6f73f9182760..276cc5bc4f08edc325dcc3e3c8aaa40e3d3ebf5d 100644
--- "a/work/com/java/minxi/java_20240516/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0516.java"
+++ "b/work/com/java/minxi/java_20240516/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0516.java"
@@ -66,10 +66,10 @@ public class zy0516 {
         SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         System.out.println(simpleDateFormat.format(date));
 
-        String d=simpleDateFormat.format(date);
+        String f=simpleDateFormat.format(date);
         Date date1=null;
         try{
-            date1= simpleDateFormat.parse(d);
+            date1= simpleDateFormat.parse(f);
         }catch (ParseException e){
             e.printStackTrace();
         }
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/druid.properties" "b/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/druid.properties"
new file mode 100644
index 0000000000000000000000000000000000000000..d115424d4d33a1ef533b012a7e2a30698e86926d
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/druid.properties"
@@ -0,0 +1,12 @@
+#????
+driverClassName=com.mysql.cj.jdbc.Driver
+url=jdbc:mysql://127.0.0.1:3306/student?useServerPrepStmts=true&serverTimezone=Asia/Shanghai
+username=root
+password=123456
+
+# ???????
+initialSize=5
+# ?????
+maxActive=10
+# ??????
+maxWait=3000
\ No newline at end of file
diff --git "a/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0524.java" "b/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0524.java"
new file mode 100644
index 0000000000000000000000000000000000000000..5020c2bfd066705967712eace242157be307b140
--- /dev/null
+++ "b/work/com/java/minxi/java_20240524/java_2302_\346\235\216\346\224\277\345\223\262_2344310218/zy0524.java"
@@ -0,0 +1,82 @@
+package com.java.minxi.java_20240524.java_2302_李政哲_2344310218;
+
+import com.alibaba.druid.pool.DruidDataSourceFactory;
+
+import javax.sql.DataSource;
+import java.io.FileInputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.sql.*;
+import java.util.Properties;
+
+public class zy0524 {
+    public static void main(String[] args) {
+        Demo1();
+        Demo2(1, 35);
+        Demo3(3, "小严");
+    }
+
+    public static void Demo1() {
+        Connection connection = null;
+        Statement statement = null;
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+
+            connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/student?serverTimezone=Asia/Shanghai", "root", "123456");
+            statement = connection.createStatement();
+            ResultSet resultSet = statement.executeQuery("select * from user_info");
+            while (resultSet.next()) {
+                System.out.println(resultSet.getInt("id") + " " + resultSet.getString("user_name") + " " + resultSet.getString("user_pwd") + " " + resultSet.getInt("user_age") + " " + resultSet.getInt("user_sex") + " " + resultSet.getString("user_phone") + " " + resultSet.getString("user_email") + " " + resultSet.getString("user_address") + " " + resultSet.getDate("user_brtime") + " " + resultSet.getDate("user_time"));
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void Demo2(int id, int age) {
+        Connection connection = null;
+        PreparedStatement statement = null;
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+
+            connection = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/student?useServerPrepStmts=true&serverTimezone=Asia/Shanghai", "root", "123456");
+            statement = connection.prepareStatement("select * from user_info where id = ? and user_age = ?");
+            statement.setInt(1, id);
+            statement.setInt(2, age);
+
+            ResultSet resultSet = statement.executeQuery();
+            while (resultSet.next()) {
+                System.out.println(resultSet.getInt("id") + " " + resultSet.getString("user_name") + " " + resultSet.getString("user_pwd") + " " + resultSet.getInt("user_age") + " " + resultSet.getInt("user_sex") + " " + resultSet.getString("user_phone") + " " + resultSet.getString("user_email") + " " + resultSet.getString("user_address") + " " + resultSet.getDate("user_brtime") + " " + resultSet.getDate("user_time"));
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void Demo3(int id, String name) {
+        Connection connection = null;
+        PreparedStatement statement = null;
+
+
+        try {
+            Properties properties = new Properties();
+            properties.load(Files.newInputStream(Paths.get("work/com/java/minxi/java_20240524/java_2302_李政哲_2344310218/druid.properties")));
+            DataSource dataSource = DruidDataSourceFactory.createDataSource(properties);
+
+            connection = dataSource.getConnection();
+            statement = connection.prepareStatement("update user_info set user_name = ? where id = ?");
+            statement.setString(1, name);
+            statement.setInt(2, id);
+
+            if (statement.executeUpdate() > 0) {
+                System.out.println("执行成功");
+            } else {
+                System.out.println("执行失败");
+            }
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
+