mysql反序列化表_C#里 如何序列化与反序列化 hashtable Dictionary及C#连接mysql数据库...

using System.IO;

using System.Runtime.Serialization.Formatters.Binary;

Hashtable aa = new Hashtable();

private void buttonSave_Click(object sender, EventArgs e)

{

FileStream fs = new FileStream("e:\\400tel.dat", FileMode.Create);

BinaryFormatter bf = new BinaryFormatter();

bf.Serialize(fs, aa);

fs.Close();

}

private void buttonLoad_Click(object sender, EventArgs e)

{

aa.Clear();

FileStream fs = new FileStream("e:\\400tel.dat", FileMode.OpenOrCreate);

BinaryFormatter bf = new BinaryFormatter();

aa = (Hashtable)bf.Deserialize(fs);

fs.Close();

}

//Dictionary dic = new Dictionary(13000000);

C#连接mysql数据库

string ConnectionString = "server = localhost; user id = XXXX; password = XXXX; database = XXXX";

string sqlString="......(此处sql语句省略)";

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

using (MySqlCommand cmd = new MySqlCommand(sqlString, connection))

{

try

{

connection.Open();

int rows = cmd.ExecuteNonQuery();//执行sql语句

return rows;

}

catch (MySql.Data.MySqlClient.MySqlException e)

{

connection.Close();

throw e;

}

}

}