program.cs

csharp课本的源代码

using System;
using System.Collections.Generic;
using System.Text;
namespace EncapsulationExample
{
    class BankAccount
    {
        //帐户余额
        private decimal accountBalance;
        public decimal AccountBalance
        {
            get
            {
                return accountBalance;
            }
        }
        public BankAccount(decimal startAmount)
        {
            accountBalance = startAmount;
        }
        //可以通过此方法取款
        public void WithDraw(decimal money)
        {
            if (accountBalance >= money)
            {
                accountBalance -= money;
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            BankAccount ZhangSan = new BankAccount(1000);
            ZhangSan.WithDraw(100);
            Console.WriteLine("帐户的余额为{0:C}", ZhangSan.AccountBalance);
            Console.ReadLine();
        }
    }
}