做的网站图片模糊,成都旅游攻略景点必去,网站轮播图怎么做,湖南平台网站建设公司在#xff08;1#xff09;的基础上进行改进
1#xff1a;增加一个静态成员函数total#xff0c;记录账户总金额和静态成员函数getTotal
2对不需要改变的对象进行const修饰
3多文件实现
account。h文件
#ifndef _ACCOUNT_
#define _ACCOUNT_
class SavingAccount {pri…在1的基础上进行改进
1增加一个静态成员函数total记录账户总金额和静态成员函数getTotal
2对不需要改变的对象进行const修饰
3多文件实现
account。h文件
#ifndef _ACCOUNT_
#define _ACCOUNT_
class SavingAccount {private:int id;double rate;double balance;int lastdate;double accumulation;static double total;void record(int date, double amount);double accumulate(int date)const {return accumulation balance * (date - lastdate);}
public:SavingAccount(int date, int id, double rate);int getid()const { return id; }double getbalance()const { return balance; }double getrate()const { return rate; }static double getTotal() { return total; }void deposit(int date, double amount);void withdraw(int date, double amount);void settle(int date);void show()const;
};
#endif
account。cpp文件
#includeaccount.h
#includecmath
#includeiostream
using namespace std;
double SavingAccount::total 0;
SavingAccount::SavingAccount(int date, int id, double rate) :id(id), balance(0), rate(rate), lastdate(date)
, accumulation(0) {cout date \t# id endl;
}
void SavingAccount::record(int date, double amount) {accumulation accumulate(date);lastdate date;amount floor(amount * 100 0.5) / 100;balance amount;total amount;cout date \t# id \t amount \t balance endl;
}
void SavingAccount::deposit(int date, double amount) {record(date, amount);
}
void SavingAccount::withdraw(int date, double amount) {if (amount getbalance())cout 余额不足 endl;elserecord(date, -amount);
}
void SavingAccount::settle(int date) {double interest accumulate(date) * rate / 365;if (interest ! 0)record(date, interest);accumulation 0;
}
void SavingAccount::show()const {cout # id \tbalance: balance;
}1.cpp
#includeaccount.h
#includeiostream
using namespace std;
int main() {SavingAccount s1(1, 21325302, 0.0015);SavingAccount s2(1, 21325303, 0.0015);s1.deposit(5, 5000);s2.deposit(25, 10000);s1.deposit(45, 5500);s2.withdraw(60, 4000);s1.settle(90);s2.settle(90);s1.show();s2.show();}
