savings.cpp

用模板制作的银行类

#include <iostream.h>
#include "account.h"
#include "Savings.h"

double Savings::minbalance=50000.0;     //设置透支范围

Savings::Savings(unsigned accNo, double bal):Account(accNo, bal) {}

void Savings::Withdrawal(double amount)
{
  if(balance+minbalance<amount)
    cout <<"无足够的余额取出以下资金: " <<amount <<endl;
  else
    balance-=amount;
	Display();
}