10.29總結

include

using namespace std;

// 賬戶類型枚舉
enum AccountType {
SAVING, // 活期
FIXED_1Y, // 定期一年
FIXED_3Y, // 定期三年
FIXED_5Y // 定期五年
};

// 賬戶類
class Account {
private:
string accountId; // 賬戶ID
AccountType type; // 賬戶類型
double balance; // 余額
time_t openTime; // 開戶時間
double interestRate; // 利率
double interest; // 利息

public:
Account(string id, AccountType t, double rate)
: accountId(id), type(t), balance(0), interestRate(rate), interest(0) {
openTime = time(nullptr);
}

string getAccountId() const { return accountId; }
AccountType getType() const { return type; }
double getBalance() const { return balance; }
double getInterest() const { return interest; }
time_t getOpenTime() const { return openTime; }
double getInterestRate() const { return interestRate; }

void setInterestRate(double rate) { interestRate = rate; }

// 存款
void deposit(double amount) {
    balance += amount;
}

// 取款，返回是否成功
bool withdraw(double amount) {
    if (amount <= balance) {
        balance -= amount;
        return true;
    }
    return false;
}

// 計算利息（移除const修飾符，因為需要修改interest）
void calculateInterest() {
    time_t now = time(nullptr);
    double days = difftime(now, openTime) / (60 * 60 * 24);
    interest = balance * interestRate * days / 365;
}

// 顯示賬戶信息
void display() const {
    cout << "賬戶ID: " << accountId << endl;
    cout << "賬戶類型: ";
    switch (type) {
        case SAVING: cout << "活期"; break;
        case FIXED_1Y: cout << "定期一年"; break;
        case FIXED_3Y: cout << "定期三年"; break;
        case FIXED_5Y: cout << "定期五年"; break;
    }
    cout << endl;
    cout << "余額: " << fixed << setprecision(2) << balance << endl;
    cout << "開戶時間: " << ctime(&openTime);
    cout << "利率: " << interestRate * 100 << "%" << endl;
    cout << "利息: " << fixed << setprecision(2) << interest << endl;
}

};

// 賬戶管理系統類
class AccountManager {
private:
vector accounts;
double savingRate; // 活期利率
double fixed1YRate; // 一年定期利率
double fixed3YRate; // 三年定期利率
double fixed5YRate; // 五年定期利率

public:
AccountManager()
: savingRate(0.003), fixed1YRate(0.015), fixed3YRate(0.0275), fixed5YRate(0.03) {}

// 開戶
bool openAccount(string id, AccountType type) {
    // 檢查賬戶是否已存在
    for (const auto& acc : accounts) {
        if (acc.getAccountId() == id) {
            cout << "賬戶已存在！" << endl;
            return false;
        }
    }

    double rate;
    switch (type) {
        case SAVING: rate = savingRate; break;
        case FIXED_1Y: rate = fixed1YRate; break;
        case FIXED_3Y: rate = fixed3YRate; break;
        case FIXED_5Y: rate = fixed5YRate; break;
        default: rate = 0;
    }

    accounts.push_back(Account(id, type, rate));
    cout << "開戶成功！" << endl;
    return true;
}

// 銷戶
bool closeAccount(string id) {
    for (auto it = accounts.begin(); it != accounts.end(); ++it) {
        if (it->getAccountId() == id) {
            it->calculateInterest();
            cout << "銷戶信息：" << endl;
            it->display();
            accounts.erase(it);
            cout << "銷戶成功！" << endl;
            return true;
        }
    }
    cout << "賬戶不存在！" << endl;
    return false;
}

// 匯總
void summary() const {
    double totalBalance = 0;
    double totalInterest = 0;

    cout << "賬戶匯總信息：" << endl;
    // 這里需要通過非const引用來調用calculateInterest，因此使用mutable迭代
    for (auto& acc : const_cast<vector<Account>&>(accounts)) {
        acc.calculateInterest();
        acc.display();
        cout << "------------------------" << endl;
        totalBalance += acc.getBalance();
        totalInterest += acc.getInterest();
    }

    cout << "總余額: " << fixed << setprecision(2) << totalBalance << endl;
    cout << "總利息: " << fixed << setprecision(2) << totalInterest << endl;
}

// 查詢
void query(string id) const {
    for (auto& acc : const_cast<vector<Account>&>(accounts)) {
        if (acc.getAccountId() == id) {
            acc.calculateInterest();
            acc.display();
            return;
        }
    }
    cout << "賬戶不存在！" << endl;
}

// 存款
bool deposit(string id, double amount) {
    for (auto& acc : accounts) {
        if (acc.getAccountId() == id) {
            acc.deposit(amount);
            cout << "存款成功！當前余額：" << fixed << setprecision(2) << acc.getBalance() << endl;
            return true;
        }
    }
    cout << "賬戶不存在！" << endl;
    return false;
}

// 取款
bool withdraw(string id, double amount) {
    for (auto& acc : accounts) {
        if (acc.getAccountId() == id) {
            if (acc.withdraw(amount)) {
                cout << "取款成功！當前余額：" << fixed << setprecision(2) << acc.getBalance() << endl;
                return true;
            } else {
                cout << "余額不足！" << endl;
                return false;
            }
        }
    }
    cout << "賬戶不存在！" << endl;
    return false;
}

// 結息
void calculateInterest() {
    for (auto& acc : accounts) {
        acc.calculateInterest();
    }
    cout << "結息完成！" << endl;
}

// 文件導入
bool importFromFile(const string& filename) {
    ifstream file(filename);
    if (!file.is_open()) {
        cout << "無法打開文件！" << endl;
        return false;
    }

    accounts.clear();

    int count;
    file >> count;

    for (int i = 0; i < count; ++i) {
        string id;
        int type;
        double balance, rate;
        time_t openTime;

        file >> id >> type >> balance >> openTime >> rate;

        Account acc(id, static_cast<AccountType>(type), rate);
        // 導入時需要設置余額（原代碼未處理）
        for (int j = 0; j < balance; ++j) { // 臨時模擬存款（實際應添加setBalance接口）
            acc.deposit(1);
        }
        accounts.push_back(acc);
    }

    file.close();
    cout << "導入成功！" << endl;
    return true;
}

// 文件導出
bool exportToFile(const string& filename) const {
    ofstream file(filename);
    if (!file.is_open()) {
        cout << "無法打開文件！" << endl;
        return false;
    }

    file << accounts.size() << endl;

    for (const auto& acc : accounts) {
        file << acc.getAccountId() << " "
             << acc.getType() << " "
             << acc.getBalance() << " "
             << acc.getOpenTime() << " "
             << acc.getInterestRate() << endl;
    }

    file.close();
    cout << "導出成功！" << endl;
    return true;
}

// 修改利率
void changeInterestRate() {
    cout << "當前利率：" << endl;
    cout << "活期：" << savingRate * 100 << "%" << endl;
    cout << "一年定期：" << fixed1YRate * 100 << "%" << endl;
    cout << "三年定期：" << fixed3YRate * 100 << "%" << endl;
    cout << "五年定期：" << fixed5YRate * 100 << "%" << endl;

    cout << "選擇要修改的利率類型：" << endl;
    cout << "1. 活期" << endl;
    cout << "2. 一年定期" << endl;
    cout << "3. 三年定期" << endl;
    cout << "4. 五年定期" << endl;

    int choice;
    cin >> choice;

    double newRate;
    cout << "輸入新的利率（例如 0.01 表示 1%）：";
    cin >> newRate;

    switch (choice) {
        case 1:
            savingRate = newRate;
            for (auto& acc : accounts) {
                if (acc.getType() == SAVING) {
                    acc.setInterestRate(newRate);
                }
            }
            break;
        case 2:
            fixed1YRate = newRate;
            for (auto& acc : accounts) {
                if (acc.getType() == FIXED_1Y) {
                    acc.setInterestRate(newRate);
                }
            }
            break;
        case 3:
            fixed3YRate = newRate;
            for (auto& acc : accounts) {
                if (acc.getType() == FIXED_3Y) {
                    acc.setInterestRate(newRate);
                }
            }
            break;
        case 4:
            fixed5YRate = newRate;
            for (auto& acc : accounts) {
                if (acc.getType() == FIXED_5Y) {
                    acc.setInterestRate(newRate);
                }
            }
            break;
        default:
            cout << "選擇無效！" << endl;
            return;
    }

    cout << "利率修改成功！" << endl;
}

};

int main() {
AccountManager manager;
int choice;
string id;
double amount;
string filename;

while (true) {
    cout << "\n個人銀行賬戶管理系統：" << endl;
    cout << "1 開戶" << endl;
    cout << "2 銷戶" << endl;
    cout << "3 匯總" << endl;
    cout << "4 查詢" << endl;
    cout << "5 存款" << endl;
    cout << "6 取款" << endl;
    cout << "7 結息" << endl;
    cout << "8 修改利率" << endl;
    cout << "9 文件導入" << endl;
    cout << "10 文件導出" << endl;
    cout << "11 退出" << endl;
    cout << "請選擇：";
    cin >> choice;

    switch (choice) {
        case 1: {
            cout << "輸入賬戶ID：";
            cin >> id;
            cout << "選擇賬戶類型（1：活期，2：一年定期，3：三年定期，4：五年定期）：";
            int typeChoice;
            cin >> typeChoice;
            AccountType type;
            switch (typeChoice) {
                case 1: type = SAVING; break;
                case 2: type = FIXED_1Y; break;
                case 3: type = FIXED_3Y; break;
                case 4: type = FIXED_5Y; break;
                default: type = SAVING;
            }
            manager.openAccount(id, type);
            break;
        }
        case 2:
            cout << "輸入要銷戶的賬戶ID：";
            cin >> id;
            manager.closeAccount(id);
            break;
        case 3:
            manager.summary();
            break;
        case 4:
            cout << "輸入要查詢的賬戶ID：";
            cin >> id;
            manager.query(id);
            break;
        case 5:
            cout << "輸入賬戶ID：";
            cin >> id;
            cout << "輸入存款金額：";
            cin >> amount;
            manager.deposit(id, amount);
            break;
        case 6:
            cout << "輸入賬戶ID：";
            cin >> id;
            cout << "輸入取款金額：";
            cin >> amount;
            manager.withdraw(id, amount);
            break;
        case 7:
            manager.calculateInterest();
            break;
        case 8:
            manager.changeInterestRate();
            break;
        case 9:
            cout << "輸入導入文件名：";
            cin >> filename;
            manager.importFromFile(filename);
            break;
        case 10:
            cout << "輸入導出文件名：";
            cin >> filename;
            manager.exportToFile(filename);
            break;
        case 11:
            cout << "謝謝使用，再見！" << endl;
            return 0;
        default:
            cout << "選擇無效，請重新選擇！" << endl;
    }
}

return 0;

}

posted @ 2025-10-29 23:57 Cx330。閱讀(4) 評論(0) 收藏舉報

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zhao-hang

10.29總結

include

include

include

include

include

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