如何在C# net core中从数据库中获取数据

using System;
using System.Data;
using MySql.Data.MySqlClient;

public class Program
{
    public static void Main()
    {
        string connectionString = "your_connection_string"; // 替换为你的数据库连接字符串

        using (MySqlConnection connection = new MySqlConnection(connectionString))
        {
            connection.Open();

            string query = "SELECT * FROM table_name"; // 替换为你的查询语句

            using (MySqlCommand command = new MySqlCommand(query, connection))
            {
                using (MySqlDataReader reader = command.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        // 处理每一行数据
                        int id = reader.GetInt32("id");
                        string name = reader.GetString("name");
                        // 其他字段...

                        Console.WriteLine($"ID: {id}, Name: {name}");
                    }
                }
            }

            connection.Close();
        }
    }
}