[C++知识库]敲代码的第八天：构建储蓄账户类，用到继承性（c++）

#include <iostream>

#include <string.h>
using namespace std;

class Account {
private:
    int id;
    char name[20]; //字符数组
    int money;
public:
    Account();

    Account(int id);

    Account(int id, char name[], int money);
    void inputInfo();
    void print();
};

class SaveAccount : public Account {
private:
? ? char pwd[20];
? ? char address[20];
? ? int minMoney;
? ? int ?rate;
public:
? ? SaveAccount();

? ? SaveAccount(int id);

? ? SaveAccount(char pwd[], char address[], int minMoney, int rate);
? ? SaveAccount(int id, char name[], int money, char pwd[],
? ? ? ? ? ? ? ? char address[], int minMoney, int rate);
? ? void in();
? ? void out();
? ? void resetPwd();

};

Account::Account() {
? ? cout << "父类无参被调用了" << endl;
}

Account::Account(int id, char name[], int money) : id(id), ?money(money) {
? ? strcpy(this->name, name);
}

void Account::inputInfo() {
? ? cout << "请输入姓名:" << endl;
? ? cin >> this->name;
? ? cout << "请输入存款:" << endl;
? ? cin >> this->money;
}

void Account::print() {
? ? cout << "id = " << id;
? ? cout << ", name = " << name;
? ? cout << ", money = " << money << endl;
}

Account::Account(int id) : id(id) {}
SaveAccount::SaveAccount() {
}

SaveAccount::SaveAccount(char pwd[], char address[], int minMoney, int rate) :
? ? minMoney(minMoney), rate(rate) {
? ? strcpy(this->pwd, pwd);
? ? strcpy(this->address, address);
}
SaveAccount::SaveAccount(int id, char name[], int money, char pwd[],
? ? ? ? ? ? ? ? ? ? ? ? ?char address[], int minMoney, int rate) :
? ? Account(id, name, money), minMoney(minMoney), rate(rate) {
? ? strcpy(this->pwd, pwd);
? ? strcpy(this->address, address);

}

void SaveAccount::in() {
? ? inputInfo();
? ? cout << "请输入地址:" << endl;
? ? cin >> this->address;
? ? cout << "请输入密码:" << endl;
? ? cin >> this->pwd;
? ? cout << "请输入最少存款:" << endl;
? ? cin >> this->minMoney;
? ? cout << "请输入最少利率:" << endl;
? ? cin >> this->rate;
}
void SaveAccount::out() {
? ? print();
? ? cout << "address = " << this->address;
? ? cout << ", pwd = " << this->pwd;
? ? cout << ", rate = " << this->rate;
? ? cout << ", minMoney = " << this->minMoney << endl;

}

SaveAccount::SaveAccount(int id) : Account(id) {}

void SaveAccount::resetPwd() {
? ? char inputPwd[20];
? ? char inputPwd2[20];
? ? cout << "请输入旧密码:" << endl;
? ? cin >> inputPwd;
? ? if(strcmp(inputPwd, this->pwd) == 0) {
? ? ? ? cout << "请输入新密码:" << endl;
? ? ? ? cin >> inputPwd;
? ? ? ? cout << "请再次确认密码:" << endl;
? ? ? ? cin >> inputPwd2;
? ? ? ? if(strcmp(inputPwd, inputPwd2) == 0) {
? ? ? ? ? ? strcpy(this->pwd, inputPwd2);
? ? ? ? ? ? cout << "修改密码成功!" << endl;
? ? ? ? } else {
? ? ? ? ? ? cout << "密码输入不一致,亲,麻烦重新来!" << endl;
? ? ? ? }
? ? } else {
? ? ? ? cout << "旧密码输入错误,不能更改" << endl;
? ? }

}
int main() {
? ? cout << strcmp("aa", "aa") << endl;
? ? /*Account zhangsan;
? ? zhangsan.inputInfo();
? ? zhangsan.print();*/
? ? SaveAccount lisi(1);
? ? lisi.in();
? ? lisi.out();

? ? SaveAccount wangwu(2, "ww", 9000, "meiyou", "xianyang", 2, 2);
? ? wangwu.out();

? ? return 0;
}