public override void prepare()
{
Console.WriteLine("Preparing" + name);
dough = ingredientFactory.createDough();
sauce = ingredientFactory.createSauce();
clam = ingredientFactory.createClam();
}
public override void Prepare()
{
Console.WriteLine("准备：" + name);
dough = _pizzaIngredientFactory.createDough();
sauce = _pizzaIngredientFactory.createSauce();
cheese = _pizzaIngredientFactory.createCheese();
clam = _pizzaIngredientFactory.createClam();//纽约工厂就会使用新鲜的蛤蜊，芝加哥工厂就会用冷冻的蛤蜊。
}