static void Main(string[] args)
{
FruitSeller seller0 = new FruitSeller("손오공", 0, 30, 1500);
FruitSeller seller1 = new FruitSeller("저팔계", 0, 20, 2000);
FruitBuyer buyer = new FruitBuyer("홍길동", 10000);
buyer.buyApple(seller0, 3000);
buyer.buyApple(seller1, 4000);
buyer.showBuyResult();
seller0.showSaleResult();
seller1.showSaleResult();
}
public void buyApple(FruitSeller seller, int money)
{
this.numOfApple += seller.saleApple(money);
this.myMoney -= money;
}