#region 炸彈系列
  abstract class Bomb
  {
    abstract public void baozha();
  }
  /// <summary>
  /// 導(dǎo)彈
  /// </summary>
  class daodanBomb :Bomb
  {
    public override void baozha()
    {
      Console.WriteLine("我是一顆中國(guó)造導(dǎo)彈，來(lái)轟炸不老實(shí)的小邪惡國(guó)家！");
    }
  }
  /// <summary>
  /// 核彈
  /// </summary>
  class hedanBomb : Bomb
  {
    public override void baozha()
    {
      Console.WriteLine("我是一顆中國(guó)造核彈，來(lái)轟炸不老實(shí)的小邪惡國(guó)家！");
    }
  }
  #endregion

  #region 坦克系列
  abstract class Tank
  {
    abstract public void go();
  }
  /// <summary>
  /// 越野車(chē)
  /// </summary>
  class yueyeTank : Tank
  {
    public override void go()
    {
      Console.WriteLine("我是一顆中國(guó)造越野車(chē)，來(lái)踏平不老實(shí)的小邪惡國(guó)家！");
    }
  }
  /// <summary>
  /// 主站坦克
  /// </summary>
  class zhuzhanTank : Tank
  {
    public override void go()
    {
      Console.WriteLine("我是一顆中國(guó)造主站坦克，來(lái)踏平不老實(shí)的小邪惡國(guó)家！");
    }
  }
  #endregion工廠(chǎng)類(lèi)代碼


  #region 中國(guó)兵工廠(chǎng)
  abstract class chinaFactory
  {
    //裝甲車(chē)制造車(chē)間
    public abstract Tank CreateTank();
    //炸彈知道車(chē)間
    public abstract Bomb CreateBomb();
  }
  //兵工廠(chǎng)前期制造
  class qianqiFactory : chinaFactory
  {   
    public override Bomb CreateBomb()
    {
      //導(dǎo)彈
      return new daodanBomb();
    }
    public override Tank CreateTank()
    {
      //越野車(chē)
      return new yueyeTank();
    }
  }
  //兵工廠(chǎng)后期制造
  class houqiFactory : chinaFactory
  {
    public override Bomb CreateBomb()
    {
      //核彈
      return new hedanBomb();
    }
    public override Tank CreateTank()
    {
      //主站坦克
      return new zhuzhanTank();
    }
  }
  #endregion客戶(hù)端代碼：（打仗）


  // 備戰(zhàn)
  class Make
  {
    //裝備 
    private Bomb bomb;
    private Tank tank;
    //制造加工
    public Make(chinaFactory factory)
    {
      bomb = factory.CreateBomb();
      tank = factory.CreateTank();
    }

    //開(kāi)始打仗
    public void warStar()
    {
      //炸彈類(lèi)爆炸
      bomb.baozha();
      //戰(zhàn)車(chē)類(lèi)前進(jìn)
      tank.go();
    }

  }
  public class start
  {
    public static void Main()
    {
      //大戰(zhàn)前期
      chinaFactory qianqiMake = new qianqiFactory();
      Make qianqi = new Make(qianqiMake);
      qianqi.warStar();

      //點(diǎn)任意鍵，進(jìn)行后期攻勢(shì)?。?
      Console.ReadKey();

      //大戰(zhàn)后期
      chinaFactory houqiMake = new houqiFactory();
      Make houqi = new Make(houqiMake);
      houqi.warStar();

      Console.WriteLine("釣魚(yú)島是中國(guó)的，神圣不可侵犯！小邪惡國(guó)家，滾開(kāi)??！");
      Console.ReadLine();
    }
  }

/// 扮演抽象工廠(chǎng)的角色
/// 創(chuàng)建連接數(shù)據(jù)庫(kù)時(shí)所需要的對(duì)象集合，
/// 這個(gè)對(duì)象集合包括有 DbConnection對(duì)象（這個(gè)是抽象產(chǎn)品類(lèi),如絕味例子中的YaBo類(lèi)）、DbCommand類(lèi)、DbDataAdapter類(lèi)，針對(duì)不同的具體工廠(chǎng)都需要實(shí)現(xiàn)該抽象類(lèi)中方法，
public abstract class DbProviderFactory
{
  // 提供了創(chuàng)建具體產(chǎn)品的接口方法
  protected DbProviderFactory();
  public virtual DbCommand CreateCommand();
  public virtual DbCommandBuilder CreateCommandBuilder();
  public virtual DbConnection CreateConnection();
  public virtual DbConnectionStringBuilder CreateConnectionStringBuilder();
  public virtual DbDataAdapter CreateDataAdapter();
  public virtual DbDataSourceEnumerator CreateDataSourceEnumerator();
  public virtual DbParameter CreateParameter();
  public virtual CodeAccessPermission CreatePermission(PermissionState state);
}
DbProviderFactory類(lèi)是一個(gè)抽象工廠(chǎng)類(lèi)，該類(lèi)提供了創(chuàng)建數(shù)據(jù)庫(kù)連接時(shí)所需要的對(duì)象集合的接口，實(shí)際創(chuàng)建的工作在其子類(lèi)工廠(chǎng)中進(jìn)行，微軟使用的是SQL Server數(shù)據(jù)庫(kù)，因此提供了連接SQL Server數(shù)據(jù)的具體工廠(chǎng)實(shí)現(xiàn)，具體代碼可以用反編譯工具查看，具體代碼如下：

/// 扮演著具體工廠(chǎng)的角色，用來(lái)創(chuàng)建連接SQL Server數(shù)據(jù)所需要的對(duì)象
public sealed class SqlClientFactory : DbProviderFactory, IServiceProvider
{
  // Fields
  public static readonly SqlClientFactory Instance = new SqlClientFactory();
  // 構(gòu)造函數(shù)
  private SqlClientFactory()
  {
  }
      
  // 重寫(xiě)抽象工廠(chǎng)中的方法
  public override DbCommand CreateCommand()
  { // 創(chuàng)建具體產(chǎn)品
    return new SqlCommand();
  }
  public override DbCommandBuilder CreateCommandBuilder()
  {
    return new SqlCommandBuilder();
  }
  public override DbConnection CreateConnection()
  {
    return new SqlConnection();
  }
  public override DbConnectionStringBuilder CreateConnectionStringBuilder()
  {
    return new SqlConnectionStringBuilder();
  }
  public override DbDataAdapter CreateDataAdapter()
  {
    return new SqlDataAdapter();
  }
  public override DbDataSourceEnumerator CreateDataSourceEnumerator()
  {
    return SqlDataSourceEnumerator.Instance;
  }
  public override DbParameter CreateParameter()
  {
    return new SqlParameter();
  }
  public override CodeAccessPermission CreatePermission(PermissionState state)
  {
    return new SqlClientPermission(state);
  }
}