1. 实验：类与对象编程练习
定义一个FDAccount类，用于描述一个定期存折（fixed deposit），实现现金支取、余额合计、信息显示等。存折基本信息包括账号、账户名称、存款余额、存款期限（以月为单位）、存款利率（以百分点为单位）等。
2. 参考代码
#include<iostream>
using namespace std;
class FDAccount
{
public://构造函数FDAccount(char * ID,char * depositor,double amount,int period,double rate);double fetch(char* ID, char* depositor, double amount);~FDAccount();void update();void show();
protected:double interest_rate; //存款利率private:char * accounts;//账号char * name;//账户名称double balance; //存款余额int term; //存款期限
};
//构造函数实现
FDAccount::FDAccount(char * ID, char* depositor, double amount, int period, double rate)
{name = depositor;accounts = ID;if ((amount<0)||(rate<0)){cout << "数据不正确！" << endl;exit(1);}balance = amount;term = period;interest_rate = rate;
}
double FDAccount::fetch(char* ID, char* depositor, double amount)
{cout << "账号 " << "账户名称 " << "支取金额 " << endl;cout << accounts << " " << name << " " << amount << endl;balance = balance - amount;//计算取款后余额return balance;
}
void FDAccount::update()
{//计算当前账户余额balance = balance + balance * (interest_rate / 100.00) * (term / 12.0);
}
void FDAccount::show()
{cout << "显示账户基本信息：" << endl;cout << "账号 " << "账户名称 " << "期限 " << "利率 "<<endl;cout << accounts << " " << name << " " << term << " " << interest_rate << endl;cout << "目前账户余额为：" << balance << endl;}FDAccount::~FDAccount()
{
}int main()
{//(char* ID, char* depositor, double amount, int period, double rate)//char sid[] = "0034";FDAccount depositor("0034", "王涛", 10078.00, 18, 1.98);depositor.show();cout <<endl;cout <<"存款已到期！\n"<<endl;depositor.update();depositor.show();cout<<endl;cout<<"支取存款："<<endl;depositor.fetch("0034","王涛",5000);//取款cout <<endl;depositor.show();//显示余额system("pause");
}
程序运行结果：
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