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重写、隐藏基类(new, override)的方法

2020-01-24 03:34:50
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复制代码 代码如下:

public class Father
    {
        public void Write() {
            Console.WriteLine("父");
        }
    }

    public class Mother
    {
        public virtual void Write()
        {
            Console.WriteLine("母");
        }
    }

    public class Boy : Father
    {
        public new void Write()
        {
            Console.WriteLine("子");
        }
    }

    public class Girl : Mother
    {
        public override void Write()
        {
            Console.WriteLine("女");
        }
    }


复制代码 代码如下:

static void Main(string[] args)
        {
            Father father = new Boy();
            father.Write();

            Boy boy = new Boy();
            boy.Write();


            Mother mother = new Mother();
            mother.Write();

            Girl girl = new Girl();
            girl.Write();

            Console.ReadLine();
        }


输出:




添加调用父方法:

复制代码 代码如下:

public class Boy : Father
    {
        public new void Write()
        {
            base.Write();
            Console.WriteLine("子");
        }
    }

    public class Girl : Mother
    {
        public override void Write()
        {
            base.Write();
            Console.WriteLine("女");
        }
    }


输出:






可见,在程序运行结果上new 和override是一样的。

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