跪求大佬帮忙修改，请问一下转账时objA.transfer为什么不能赋值给objB.count?

Question

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

namespace ConsoleApp2
{

class Depositcard                             //储蓄卡
{
    public int balance=10000;      //余额
    public int count;

    public void Repayment(int count1)
    {
        count1=balance - count;
        if (count1<0)
        {
            Console.WriteLine("转账失败，储蓄卡还剩:" + balance);
        }
        else
        {
            Console.WriteLine("转账成功，储蓄卡还剩:" + balance);
        }
    }
}

class Creditcard                    //信用卡
{

    public int sum;                 //余额
    public int saveordraw;          //存钱或取钱
    public int transfer;            //转账
    public int balance;             //储蓄卡转账
    public Creditcard(int num)
    {
        sum = num;
        Console.WriteLine("信用卡还有余额" + sum, "元");
    }

    public void Save_money()        //存钱
    {
        string a = Console.ReadLine();
        saveordraw = int.Parse(a);

        sum += saveordraw;
        Console.WriteLine("信用卡还有余额" + sum, "元");
    }

    public void Draw_money()       //取钱
    {
        string b = Console.ReadLine();
        saveordraw = int.Parse(b);          
        sum -= saveordraw;
        if(sum<0)
            Console.WriteLine("余额不够，取款失败！");
        else
            Console.WriteLine("取款成功，信用卡还有余额" + sum, "元");
    }

    public void Transfer_money()
    {
        string c = Console.ReadLine();
        transfer = int.Parse(c);

        Console.WriteLine(transfer);
        if (balance<transfer)
            Console.WriteLine("储蓄卡余额不够，转账失败！");
        else
        {
            sum += transfer;
            Console.WriteLine("转账成功，信用卡还有余额" + sum, "元");

        }
    }


    public string count3;
    public void Show()
    {
        Console.WriteLine("1.存款");
        Console.WriteLine("2.取款");
        Console.WriteLine("3.转账");
        Console.WriteLine("请输入需要的操作");
    }
    public void Choose_methods(int a)
    {

        switch (count3)
        {
            case "1":
                Console.WriteLine("请输入存款金额");
                Save_money();                  
                break;
            case "2":
                Console.WriteLine("请输入取款金额");
                Draw_money();
                break;

            case "3":
                Console.WriteLine("请输入转账金额");
                Transfer_money();
                break;

        }
    }
}

class Delegate
{
     public delegate void Mydelegate(int num);
     public event Mydelegate Repayment;
     public void Events()
     {
           int money = 0;

           Repayment(money);

     }
}

    class Program
    {
        [STAThread]
        static void Main(string[] args)
        {
            int sum = -50000;         //此处为欠款
            Creditcard objA = new Creditcard(sum);
            Depositcard objB = new Depositcard();
            Delegate objC = new Delegate();                
            objA.balance = objB.balance;  
            objA.Show();
            objA.count3 = Console.ReadLine(); 


            objC.Repayment += new Delegate.Mydelegate(objA.Choose_methods);
               objB.count = objA.transfer; 

            if (objA.count3 == "3")
            {                                           
               objC.Repayment += new Delegate.Mydelegate(objB.Repayment);
            }
            Console.WriteLine(objB.count);
            //Console.WriteLine(objA.transfer);
           //Console.WriteLine(objA.balance);
            objC.Events();
            Console.ReadLine();



        }

    }

}

Answer 1

不是很懂这个

``
class Depositcard //储蓄卡
{
public int balance=10000; //余额
public int count;

public void Repayment(int count1)
{
    count1=balance - count;           //**你传入count1，然后用 count1=balance - count; ？？？不应该是count=balance - count1; ？**
    if (count1<0)
    {
        Console.WriteLine("转账失败，储蓄卡还剩:" + balance);
    }
    else
    {
        Console.WriteLine("转账成功，储蓄卡还剩:" + balance);
    }
}

}`