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C#入门9.14——本章小结及任务实施

晒大太阳了 2022-09-27 阅读 130


老鹰eagle、麻雀sparrow、鸵鸟ostrich都是鸟类birds,根据三者的共性,提取出鸟类作为父类;并且各自具有格子的特点,老鹰吃小鸡,麻雀吃粮食,鸵鸟吃青草。


class ostrich:bird
{
public override void Write()
{
Console.WriteLine("鸵鸟吃青草");
}
}

class sprraw:bird
{
public override void Write()
{
Console.WriteLine("麻雀吃粮食");
}
}

class eagle:bird
{
public override void Write()
{
Console.WriteLine("老鹰吃小鸡");
}
}

abstract class bird
{
public abstract void Write();

}

class Program
{
static void Main(string[] args)
{
bird myEagle = new eagle();
bird mySparrow = new sprraw();
bird myOstrich = new ostrich();
bird[] myBird = { myEagle,mySparrow,myOstrich};
foreach (bird outBird in myBird) outBird.Write();
Console.ReadKey();
}





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