Скачать или смотреть Learning How to Code C# 23 Simple Bank System!

Code used :) :
Console.WriteLine("Bank Simulator");

Console.WriteLine("Please Insert Your Card");
Console.ReadKey();

int BalanceRem = 9999;

void showbal()
{
Console.WriteLine("Your Balance is: " + BalanceRem);
}

void Withdraw(int amount)
{
BalanceRem -= amount;
Console.WriteLine("Your remaning Balance is:" + BalanceRem);
}

void Deposit(int amount1)
{
BalanceRem += amount1;
Console.WriteLine("Your remaning Balance is:" + BalanceRem);
}


Console.WriteLine("Please Enter your 6 Digit Pin");
int Pin = Convert.ToInt32(Console.ReadLine());

if (Pin == (123456))
{
while (true)
{
Console.WriteLine("1. Show Balance");
Console.WriteLine("2. Withdraw");
Console.WriteLine("3. Deposit");
Console.WriteLine("4. Exit");

int Choice = Convert.ToInt32(Console.ReadLine());


if (Choice == 1)
{
showbal();
}

if (Choice == 2)
{
Console.WriteLine("Input the amount you want to Withdraw: ");
int amount = Convert.ToInt32(Console.ReadLine());

Withdraw(amount);
}
if (Choice == 3)
{
Console.WriteLine("Input the amount you want to Deposit: ");
int amount1 = Convert.ToInt32(Console.ReadLine());

Deposit(amount1);
}

if (Choice == 4)
{
break;
}
}
}