一些基础易忘记的重要内容

class是引用类型，指向地址。
struct是值类型，复制值不改变地址
以上再泛型类中同样适用

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

namespace std2
{
    class Program
    {
        static void Main(string[] args)
        {
            Container<int> ic = new Container<int>();
            ic.a = 10;

            Container<int> ic2 = ic;

            ic2.a = 5;
            Console.WriteLine(ic.a);//Container为struct的时候为10
                                    //Container为class的时候为5指向地址

            Console.ReadKey();

        }
    }
}

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

namespace std2
{
    struct Container<T>
    {
        public int a;
        float b;

    }
}

泛型的使用

namespace std2
{
   abstract class Caculator<M,N>
    {
        public abstract M sub(M a, N b);
        public abstract M sum(M a, N b);

    }
    class IntCaculator : Caculator<int, int> {


        public override int sub(int a, int b)
        {
            return a - b;
        }

        public override int sum(int a, int b)
        {
            return a + b;
        }


    }
    class FloatCaculator : Caculator<float, float>
    {


        public override float sub(float a, float b)
        {
            return a - b;
        }

        public override float sum(float a, float b)
        {
            return a + b;
        }


    }
}