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unit uStrategy;
interface
type
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IFlyBehavior = Interface(IInterface)
procedure Fly;
end;
TFlyWithWings = class(TInterfacedObject, IFlyBehavior)
public
procedure Fly;
end;
TFlyNoWay = class(TInterfacedObject, IFlyBehavior)
public
procedure Fly;
end;
TFlyRocketPowered = class(TInterfacedObject, IFlyBehavior)
public
procedure Fly;
end;
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IQuackBehavior = Interface(IInterface)
procedure Quack;
end;
TQuack = class(TInterfacedObject, IQuackBehavior)
public
procedure Quack;
end;
TMuteQuack = class(TInterfacedObject, IQuackBehavior)
public
procedure Quack;
end;
TSqueak = class(TInterfacedObject, IQuackBehavior)
public
procedure Quack;
end;
implementation
{ TFlyWithWings }
procedure TFlyWithWings.Fly;
begin
Writeln('I am flying!');
end;
{ TFlyNoWay }
procedure TFlyNoWay.Fly;
begin
Writeln('I can not fly!');
end;
{ TFlyRocketPowered }
procedure TFlyRocketPowered.Fly;
begin
Writeln('I am flying with a rocket!');
end;
{ TQuack }
procedure TQuack.Quack;
begin
Writeln('Quack');
end;
{ TMuteQuack }
procedure TMuteQuack.Quack;
begin
Writeln('<Silence>');
end;
{ TSqueak }
procedure TSqueak.Quack;
begin
Writeln('Squeak');
end;
end.
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unit uDuck;
interface
uses
uStrategy;
type
{ Ѽ×Ó³éÏóÀà }
TDuck
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procedure ImageL ......
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unit uPizzaIngredient;
interface
type
TDough = class(TObject)
end;
TThinCrustDough ......