using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Person
{
    class Program
    {   
       public static void Main(String[] args)
        {
           Chinese c1 = new Chinese();
           c1.name = "Tom";
           c1.height = 170;
           c1.weight = 55;
           c1.speak("Tom",170,55);
           c1.kongfu();
           Korean k1 = new Korean();
           k1.zhengrong();
           Console.ReadKey();
        }
    }
    class Person
    {
       public string name;
       public int height;
       public int weight;
       public void speak(string name,int height,int weight)
       {
           Console.WriteLine("Hello,my name is {0},my height is {1}cm,weight is {2}kg.",name,height,weight);
       }
    }
    class Chinese : Person
    {
        public void kongfu()
        {
            Console.WriteLine("我打,中国人不是东亚病夫！");
        }
    }
    class Korean : Person
    {
        public void zhengrong()
        {
            Console.WriteLine("来，让我来帮你整容！");
        }
    }
}
//求大家帮忙解答下，我对继承真的不怎么明白。

嗯，现在理解了，自学的时候很容易自己理解错，有时听别人说才恍然大悟！