连接我的本地.mdf数据库(正确的代码)

using System.Data.SqlClient;

string connectionString = @"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\path\to\your\database.mdf;Integrated Security=True";
SqlConnection connection = new SqlConnection(connectionString);
connection.Open();
// 连接成功后可以执行数据库操作

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

String url = "jdbc:mysql://localhost:3306/database_name";
String username = "your_username";
String password = "your_password";
Connection connection = null;

try {
    connection = DriverManager.getConnection(url, username, password);
    // 连接成功后可以执行数据库操作
} catch (SQLException e) {
    e.printStackTrace();
}

import sqlite3

connection = sqlite3.connect('path/to/your/database.db')
# 连接成功后可以执行数据库操作