sql server 自动附加本地 mdf 文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using Dapper;
using System.Data;

namespace localmdftest
{
    class Program
    {
        static void Main(string[] args)
        {
            //mdf 文件自动附件，使用 windows 帐号权限 访问
            using (IDbConnection connection = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=D:\*\test.mdf;Integrated Security=True;Connect Timeout=5"))
            {
                connection.Open();
                //select * from sys.tables    //获取数据库中表
                using (IDataReader reader = connection.ExecuteReader("select * from Student"))
                {
                    //获取数据内容,写入磁盘
                    DataTable dt = new DataTable();
                    dt.TableName = "Student";
                    dt.Load(reader);
                    dt.WriteXml(@"D:\*\test.xml");            
                }
            }

        }
    }
}