利用Python爬虫阿里巴巴中国站获得跨境属性的详细指南

基于MVC（Model-View-Controller）架构的小型应用程序。模拟一个简单的银行账户管理系统，包括账户模型、用户界面和控制器。

Model（模型）

// Account.h
#ifndef ACCOUNT_H
#define ACCOUNT_H

#include <string>

class Account {
private:
    std::string accountNumber;
    double balance;

public:
    Account(const std::string& number, double initialBalance) : accountNumber(number), balance(initialBalance) {}

    void deposit(double amount) {
        if (amount > 0) {
            balance += amount;
        }
    }

    bool withdraw(double amount) {
        if (amount > 0 && balance >= amount) {
            balance -= amount;
            return true;
        }
        return false;
    }

    double getBalance() const {
        return balance;
    }

    const std::string& getAccountNumber() const {
        return accountNumber;
    }
};

#endif // ACCOUNT_H

View（视图）

// AccountView.h
#ifndef ACCOUNTVIEW_H
#define ACCOUNTVIEW_H

#include "Account.h"
#include <iostream>

class AccountView {
public:
    void displayAccountInfo(const Account& account) {
        std::cout << "Account Number: " << account.getAccountNumber() << std::endl;
        std::cout << "Balance: $" << account.getBalance() << std::endl;
    }

    void displayTransactionResult(bool success) {
        if (success) {
            std::cout << "Transaction successful." << std::endl;
        } else {
            std::cout << "Transaction failed." << std::endl;
        }
    }
};

#endif // ACCOUNTVIEW_H

Controller（控制器）

// AccountController.h
#ifndef ACCOUNTCONTROLLER_H
#define ACCOUNTCONTROLLER_H

#include "Account.h"
#include "AccountView.h"

class AccountController {
private:
    Account account;
    AccountView view;

public:
    AccountController(const std::string& number, double initialBalance) : account(number, initialBalance), view() {}

    void deposit(double amount) {
        account.deposit(amount);
        view.displayTransactionResult(true);
    }

    void withdraw(double amount) {
        bool success = account.withdraw(amount);
        view.displayTransactionResult(success);
    }

    void displayAccountInfo() {
        view.displayAccountInfo(account);
    }
};

#endif // ACCOUNTCONTROLLER_H

Main（主函数）

// main.cpp
#include "AccountController.h"
#include <iostream>

int main() {
    // 创建一个账户
    AccountController myAccount("123456789", 1000.0);

    // 显示账户信息
    myAccount.displayAccountInfo();

    // 执行存款操作
    std::cout << "Depositing $500..." << std::endl;
    myAccount.deposit(500.0);

    // 执行取款操作
    std::cout << "Withdrawing $200..." << std::endl;
    myAccount.withdraw(200.0);

    // 再次显示账户信息
    std::cout << "Account info after transactions:" << std::endl;
    myAccount.displayAccountInfo();

    return 0;
}