vs连接mysql数据库 c

using System;
using MySql.Data.MySqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "Server=localhost;Database=mydatabase;Uid=myuser;Pwd=mypassword;";
        try
        {
            using (MySqlConnection connection = new MySqlConnection(connectionString))
            {
                connection.Open();
                Console.WriteLine("Connected to MySQL database!");
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

string sql = "SELECT * FROM users WHERE id = @id";
using (MySqlCommand command = new MySqlCommand(sql, connection))
{
    command.Parameters.AddWithValue("@id", 1);
    using (MySqlDataReader reader = command.ExecuteReader())
    {
        while (reader.Read())
        {
            Console.WriteLine(reader["username"]);
        }
    }
}