首先写一个最基本的投资类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Face
{
class Stock1
{
public void Sell()
{
Console.WriteLine("股票1卖出");
}
public void Buy()
{
Console.WriteLine("股票1买入");
}
}
class Stock2
{
public void Sell()
{
Console.WriteLine("股票2卖出");
}
public void Buy()
{
Console.WriteLine("股票2买入");
}
}
class Stock3
{
public void Sell()
{
Console.WriteLine("股票3卖出");
}
public void Buy()
{
Console.WriteLine("股票3买入");
}
}
class NationDebt1
{
public void Sell()
{
Console.WriteLine("国债1卖出");
}
public void Buy()
{
Console.WriteLine("国债1买入");
}
}
class Realty1
{
public void Sell()
{
Console.WriteLine("房地产1卖出");
}
public void Buy()
{
Console.WriteLine("房地产1买入");
}
}
}
然后书写一个基金类,隐藏掉。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Face
{
class Fund
{
Stock1 gu1;
Stock2 gu2;
Stock3 gu3;
NationDebt1 nd1;
Realty1 rt1;
public Fund()
{
gu1 = new Stock1();
gu2 = new Stock2();
gu3 = new Stock3();
nd1 = new NationDebt1();
rt1 = new Realty1();
}
public void BuyFund()
{
gu1.Buy();
gu2.Buy();
gu3.Buy();
nd1.Buy();
rt1.Buy();
}
public void SellFund()
{
gu1.Sell();
gu2.Sell();
gu3.Sell();
nd1.Sell();
rt1.Sell();
}
}
}
最后写测试类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Face
{
class Program
{
static void Main(string[] args)
{
Fund fund = new Fund();
fund.BuyFund();
fund.SellFund();
Console.Read();
}
}
}