c++个人银行账户管理3

c++个人银行账户管理3

在C++个人银行账户管理2的基础再设计一个基类Account用来表述所有账户的共性，然后将SavingsAccount类变为其派生类，此外还要再派生出用来表示信用账户的类CreditAccount。 整个程序分为5个文件：date.h account.h是类定义头文件，date.cpp account.cpp是类实现文件，main.cpp是主函数文件。

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); cout<<"--------------------------------"<<"1001"<<"------------------------------"<<endl; SavingsAccount s0(2008,11,1,1001,0,0.015); s0.deposit(d01,5000); s0.deposit(d02,5500); s0.settle(d2); d2.show(); s0.show(); cout<<"------------------------------------------------------------------"<<endl; cout<<"--------------------------------"<<"1002"<<"------------------------------"<<endl; SavingsAccount s1(2008,11,1,1002,0,0.015); s1.deposit(d11,10000); s1.withdraw(d12,4000); s1.settle(d2); d2.show(); s1.show(); cout<<"------------------------------------------------------------------"<<endl; cout<<"--------------------------------"<<"1003"<<"------------------------------"<<endl; CreditAccount c0(2008,11,1,1003,0,10000,0.0005,50); c0.deposit(dc1,2000); c0.withdraw(dc2,2000); c0.withdraw(dc2,-c0.getDebt(dc2)); //结算利息 c0.getDebt(d2); d2.show(); c0.show(); cout<<"-----------------------------"<<"各账户总金额"<<"-------------------------"<<endl; d2.show(); c0.getTotal(); cout<<"-------------------------------------------------------------------"<<endl; }

account.h

#ifndef ACCOUNT_H_ #define ACCOUNT_H_ #include"date.h" class Account { 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(); void show(); }; class SavingsAccount: public Account { double rate; 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;} const 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); const void show(); }; #endif // ACCOUNT_H_INCLUDED

account.cpp

#include<iostream> #include "account.h" using namespace std; //Account基类成员函数 Account::Account(int Id,double Balance) { id=Id; balance=Balance; } void Account::show() { cout<<"账号:"<<getId()<<" 余额:"<<getBalance()<<endl; } void Account::getTotal() { cout<<"各账户总额:"<<total<<endl; } 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<<"\t"; cout<<"账号"<<id<<"创建成功!"<<endl; } const double SavingsAccount::accumulate(Date date) { return lastDate.distance(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()<<"\t"; cout<<id<<"存入:"<<amount<<"\t\t"<<id<<"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()<<"\t"; cout<<id<<"取出:"<<amount<<"\t\t"<<id<<"余额:"<<balance<<endl; } void SavingsAccount::settle(Date date) { double settle = 0; accumulation+=accumulate(date); settle = accumulation/356*rate; cout<<date.getYear()<<"/"<<date.getMonth()<<"/"<<date.getDay()<<"\t"; cout<<id<<"结算利息:"<<settle<<endl; deposit(date,settle); } const void SavingsAccount::show() { Account::show(); } 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<<"\t"; cout<<"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<<id<<"\t信用卡可用额度不足!"<<endl; } else { balance-=amount; credit-=amount; date.show(); cout<<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<<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.distance(date);m++) { settle-=balance*rate; } } } else { for(int j=1;j<=(date.getMonth()-lastDate.getMonth())+12;j++) { for(int m=1;m<=lastDate.distance(date);m++) { settle-=balance*rate; } } } } else { settle-=0; } balance-=settle; total-=settle; lastDate=date; } const 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 distance(const Date& date) {return date.totalDays-totalDays;}//计算当前日期与指定日期之间相差天数 }; #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()<<"\t"; } //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

运行截图

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4