c++银行账户管理程序4（最终版）
c++银行账户管理程序4（最终版）
在C++银行账户管理程序3的基础上做如下改进：
在基类Account中添加deposit、withdraw、settle这3个函数并将其声明为纯虚函数；将show函数声明为虚函数，通过基类的指针可以调用派生类的相应函数。将计算两个日期相差天数的distance函数改为“—”运算符重载函数。
main.cpp
#include<iostream>
#include<string.h>
#include"date.h"
#include"account.h"
using namespace std;
double Account::total = 0;
int main()
{
Date d01(2008,11,5),d02(2008,12,5),d11(2008,11,25),d12(2008,12,20),d2(2009,1,1),dc1(2008,11,15),dc2(2008,12,1);
Account *ptr; //定义基类指针
cout<<"--------------------------------"<<"1001"<<"------------------------------"<<endl;
SavingsAccount s0(2008,11,1,1001,0,0.015);
ptr=&s0; //基类指针调用
ptr->deposit(d01,5000);
ptr->deposit(d02,5500);
ptr->settle(d2);
d2.show();
ptr->show();
cout<<"------------------------------------------------------------------"<<endl;
cout<<"--------------------------------"<<"1002"<<"------------------------------"<<endl;
SavingsAccount s1(2008,11,1,1002,0,0.015);
ptr=&s1;
ptr->deposit(d11,10000);
ptr->withdraw(d12,4000);
ptr->settle(d2);
d2.show();
ptr->show();
cout<<"------------------------------------------------------------------"<<endl;
cout<<"--------------------------------"<<"1003"<<"------------------------------"<<endl;
CreditAccount c0(2008,11,1,1003,0,10000,0.0005,50);
ptr=&c0;
ptr->deposit(dc1,2000);
ptr->withdraw(dc2,2000);
ptr->withdraw(dc2,-c0.getDebt(dc2)); //结算利息
ptr->settle(d2);
d2.show();
ptr->show();
cout<<"------------------------------------------------------------------"<<endl;
d2.show();
ptr->getTotal();
cout<<"------------------------------------------------------------------"<<endl;
}
account.h
#ifndef ACCOUNT_H_
#define ACCOUNT_H_
#include"date.h"
class Account //基类
{
protected:
int id;
double balance;
static double total;
public:
Account(int id, double balance);
const int getId() {return id;}
const double getBalance() {return balance;}
static void getTotal();
virtual void deposit(Date date,double amount)=0;
virtual void withdraw(Date date,double amount)=0;
virtual void settle(Date date)=0;
virtual void show();
};
class SavingsAccount:public Account //储蓄卡类
{
protected:
double rate; //利率
Date lastDate;
double accumulation=0;
const double accumulate(Date date);
public:
SavingsAccount(int year,int month,int day,int id,double balance,double rate);
void deposit(Date date,double amount);
void withdraw(Date date,double amount);
void settle(Date date);
const double getRate() {return rate;}
void show();
};
class CreditAccount:public Account //信用卡类
{
protected:
double credit; //额度
double rate; //利率
double fee; //年费
Date lastDate;
public:
CreditAccount(int year,int month,int day,int id,double balance,double credit,double rate,double fee);
double getAvailableCredit() {return credit;} //可用额度
void deposit(Date date,double amount);
void withdraw(Date date,double amount);
double getDebt(Date date); //欠款额度
void settle(Date date);
void show();
};
#endif // ACCOUNT_H_INCLUDED
account.cpp
#include<iostream>
#include "account.h"
using namespace std;
Account::Account(int Id,double Balance) //Account基类成员函数
{
id=Id;
balance=Balance;
}
void Account::show()
{
cout<<"\t账号:"<<getId()<<" 余额:"<<getBalance()<<endl;
}
void Account::getTotal()
{
cout<<"\t各账户总额:"<<total<<endl;
}
//SavingsAccount储蓄卡类成员函数
SavingsAccount::SavingsAccount(int year,int month,int day,int id,double balance,double Rate):Account(id,balance),lastDate(year,month,day)
{
rate=Rate;
cout<<year<<"/"<<month<<"/"<<day<<endl;
cout<<"\t账号"<<id<<"创建成功!"<<endl;
}
const double SavingsAccount::accumulate(Date date)
{
return (lastDate-date)*balance;
}
void SavingsAccount::deposit(Date date,double amount)
{
accumulation+=accumulate(date);
balance+=amount;
lastDate = date;
total+=amount;
cout<<date.getYear()<<"/"<<date.getMonth()<<"/"<<date.getDay()<<endl;
cout<<"\t"<<id<<"\t存入:"<<amount<<"\t余额:"<<balance<<endl;
}
void SavingsAccount::withdraw(Date date,double amount)
{
accumulation+=accumulate(date);
balance-=amount;
lastDate = date;
total-=amount;
cout<<date.getYear()<<"/"<<date.getMonth()<<"/"<<date.getDay()<<endl;
cout<<"\t"<<id<<"\t取出:"<<amount<<"\t余额:"<<balance<<endl;
}
void SavingsAccount::settle(Date date)
{
double settle = 0;
if(date.getYear()>lastDate.getYear()) //储蓄卡一年结算一次利息
{
for(int i=1;i<=date.getYear()-lastDate.getYear();i++) //
{
accumulation+=accumulate(date);
settle = accumulation/356*rate;
}
}
cout<<date.getYear()<<"/"<<date.getMonth()<<"/"<<date.getDay()<<endl;
cout<<"\t"<<id<<"\t结算利息:"<<settle<<endl;
deposit(date,settle);
}
void SavingsAccount::show()
{
Account::show();
}
//CreditAccount信用卡类
CreditAccount::CreditAccount(int year,int month,int day,int id,double balance,double Credit,double Rate,double Fee): Account(id,balance),lastDate(year,month,day)
{
credit=Credit;
fee=Fee;
rate=Rate;
cout<<year<<"/"<<month<<"/"<<day<<endl;
cout<<"\t账号"<<id<<"创建成功!"<<endl;
}
double CreditAccount::getDebt(Date date)
{
settle(date);
return balance;
}
void CreditAccount::deposit(Date date,double amount)
{
settle(date);
if(credit<=0 || amount>credit)
{
date.show();
cout<<"\t"<<id<<"\t信用卡可用额度不足!"<<endl;
}
else
{
balance-=amount;
credit-=amount;
date.show();
cout<<"\t"<<id<<"\t信用卡借款:"<<amount<<"\t\t还可用额度:"<<credit<<endl;
total-=amount;
}
}
void CreditAccount::withdraw(Date date,double amount)
{
settle(date);
balance+=amount;
if((credit+amount)<=10000)
{
credit=credit+amount;
}
else
{
credit=10000;
}
total+=amount;
date.show();
cout<<"\t"<<id<<"\t信用卡还款:"<<amount<<"\t\t还可用额度:"<<credit<<endl;
}
void CreditAccount::settle(Date date)
{
double settle=0;
if((date.getMonth()<lastDate.getMonth())||(date.getYear()>lastDate.getYear()))
{
for(int i=1;i<=date.getYear()-lastDate.getYear();i++)
{
settle+=fee; //年费
}
}
if(date.getDay()==1||date.getMonth()>lastDate.getMonth()||date.getYear()>lastDate.getYear())
{
if(date.getYear()==lastDate.getYear())
{
for(int j=1;j<=(date.getMonth()-lastDate.getMonth());j++)
{
for(int m=1;m<=lastDate-date;m++)
{
settle-=balance*rate;
}
}
}
else
{
for(int j=1;j<=(date.getMonth()-lastDate.getMonth())+12;j++)
{
for(int m=1;m<=lastDate-date;m++)
{
settle-=balance*rate;
}
}
}
}
else
{
settle-=0;
}
balance-=settle;
lastDate=date;
total-=settle;
}
void CreditAccount::show()
{
Account::show();
}
date.h
#ifndef DATE_H_INCLUDED
#define DATE_H_INCLUDED
class Date
{
int year, month, day;
int totalDays; //该日期是从公元元年1月1日开始的第几天
public:
Date(int year, int month, int day);
int getYear() const { return year; }
int getMonth() const { return month; }
int getDay() const { return day; }
void show() const; //输出当前日期
bool isLeapYear(int year) const; //判断当年是否为闰年
int operator-(const Date &date) const {return date.totalDays-totalDays;} //运算符-重载
};
#endif // DATE_H_INCLUDED
date.cpp
#include<iostream>
#include "date.h"
using namespace std;
Date::Date(int Year, int Month, int Day)
{
year=Year;
month=Month;
day=Day;
int Days=0;
for(int i=0;i<year;i++)
{
if(isLeapYear(i)==true)
Days=Days+366;
else
Days=Days+365;
}
switch(month){
case 1:Days+=0;break;
case 2:Days+=31;break;
case 3:Days+=59;break;
case 4:Days+=90;break;
case 5:Days+=120;break;
case 6:Days+=151;break;
case 7:Days+=181;break;
case 8:Days+=212;break;
case 9:Days+=243;break;
case 10:Days+=273;break;
case 11:Days+=304;break;
case 12:Days+=334;break;
default:cout<<"month error!"<<endl;
}
totalDays=Days+day;
}
void Date::show() const
{
cout<<getYear()<<"/"<<getMonth()<<"/"<<getDay()<<endl;
} //输出当前日期
bool Date::isLeapYear(int year) const
{
if((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
return true;
else
return false;
} //判断当年是否为闰年
代码截图
更多见
C++银行账户管理1
C++银行账户管理2
c++银行账户管理3