用C++NurHar: 设计一个Bank类，实现银行某账户资金往来账目管理。程序要求完成以下操作。 NurHar: 1, 创建账户：包括账号，创建日期，余额（创建账户时存入的钱数） NurHar: 2存钱：执行存钱操作，并记录存钱日期和存钱数目 NurHar: 3，取钱：执行取钱操作，并记录取钱日期和取钱数目。 NurHar: 4，查询交易明细：查询近一个月的账户交易记录

好的，下面是Bank类的设计及实现代码：

#include <iostream>
#include <string>
#include <vector>
#include <ctime>

using namespace std;

class Account {
public:
    Account(string number, double balance) : number(number), balance(balance) {
        time_t now = time(nullptr);
        created = ctime(&now);
    }

    void deposit(double amount) {
        balance += amount;
        time_t now = time(nullptr);
        string date = ctime(&now);
        transactions.push_back("Deposit of " + to_string(amount) + " on " + date);
    }

    void withdraw(double amount) {
        if (balance >= amount) {
            balance -= amount;
            time_t now = time(nullptr);
            string date = ctime(&now);
            transactions.push_back("Withdrawal of " + to_string(amount) + " on " + date);
        } else {
            cout << "Insufficient balance!" << endl;
        }
    }

    void showTransactions() {
        time_t now = time(nullptr);
        string endDate = ctime(&now);
        string startDate = ctime(&now - 30 * 24 * 60 * 60);
        cout << "Transactions from " << startDate << "to " << endDate << endl;
        for (auto transaction : transactions) {
            if (transaction.compare(11, 24, startDate) >= 0 && transaction.compare(11, 24, endDate) <= 0) {
                cout << transaction << endl;
            }
        }
    }

    void showDetails() {
        cout << "Account number: " << number << endl;
        cout << "Created on: " << created;
        cout << "Balance: " << balance << endl;
    }

private:
    string number;
    string created;
    double balance;
    vector<string> transactions;
};

class Bank {
public:
    void createAccount() {
        string number;
        double balance;
        cout << "Enter account number: ";
        cin >> number;
        cout << "Enter initial balance: ";
        cin >> balance;
        Account account(number, balance);
        accounts.push_back(account);
        cout << "Account created successfully!" << endl;
    }

    void deposit() {
        string number;
        double amount;
        cout << "Enter account number: ";
        cin >> number;
        cout << "Enter amount to deposit: ";
        cin >> amount;
        for (auto& account : accounts) {
            if (account.number == number) {
                account.deposit(amount);
                cout << "Deposit successful!" << endl;
                return;
            }
        }
        cout << "Account not found!" << endl;
    }

    void withdraw() {
        string number;
        double amount;
        cout << "Enter account number: ";
        cin >> number;
        cout << "Enter amount to withdraw: ";
        cin >> amount;
        for (auto& account : accounts) {
            if (account.number == number) {
                account.withdraw(amount);
                return;
            }
        }
        cout << "Account not found!" << endl;
    }

    void showTransactions() {
        string number;
        cout << "Enter account number: ";
        cin >> number;
        for (auto& account : accounts) {
            if (account.number == number) {
                account.showTransactions();
                return;
            }
        }
        cout << "Account not found!" << endl;
    }

    void showDetails() {
        string number;
        cout << "Enter account number: ";
        cin >> number;
        for (auto& account : accounts) {
            if (account.number == number) {
                account.showDetails();
                return;
            }
        }
        cout << "Account not found!" << endl;
    }

private:
    vector<Account> accounts;
};

int main() {
    Bank bank;
    int choice;
    while (true) {
        cout << "1. Create account" << endl;
        cout << "2. Deposit" << endl;
        cout << "3. Withdraw" << endl;
        cout << "4. Show transactions" << endl;
        cout << "5. Show details" << endl;
        cout << "6. Exit" << endl;
        cout << "Enter choice: ";
        cin >> choice;
        switch (choice) {
            case 1:
                bank.createAccount();
                break;
            case 2:
                bank.deposit();
                break;
            case 3:
                bank.withdraw();
                break;
            case 4:
                bank.showTransactions();
                break;
            case 5:
                bank.showDetails();
                break;
            case 6:
                return 0;
            default:
                cout << "Invalid choice!" << endl;
        }
    }
}

Bank类包含了创建账户、存钱、取钱、查询交易明细、查询账户详情等操作。每个账户有一个账号、创建日期、余额和交易记录，交易记录包含了交易日期、交易类型和交易金额。当执行存钱或取钱操作时，会记录一条交易记录。查询交易明细时，会按照交易日期筛选出近一个月的交易记录并输出。查询账户详情时，会输出账户的账号、创建日期和余额。

在main函数中，我们创建了一个Bank对象，并提供了一个简单的菜单供用户选择操作。用户可以输入数字来选择相应的操作，或输入6来退出程序。