银行账户管理系统c++

银行账户管理系统一般包括以下功能：

1. 用户注册和登录
2. 存款和取款
3. 转账和查询余额
4. 修改密码和个人信息

下面是一个简单的C++代码示例，实现了以上功能：

#include <iostream>
#include <string>
using namespace std;

// 银行账户类
class BankAccount {
private:
    string accountNo;  // 账号
    string password;   // 密码
    double balance;    // 余额
    string name;       // 姓名
public:
    BankAccount(string accountNo, string password, double balance, string name) {
        this->accountNo = accountNo;
        this->password = password;
        this->balance = balance;
        this->name = name;
    }
    // 存款
    void deposit(double amount) {
        balance += amount;
        cout << "存款成功，当前余额为：" << balance << endl;
    }
    // 取款
    void withdraw(double amount) {
        if (balance >= amount) {
            balance -= amount;
            cout << "取款成功，当前余额为：" << balance << endl;
        } else {
            cout << "余额不足，取款失败！" << endl;
        }
    }
    // 转账
    void transfer(BankAccount& other, double amount) {
        if (balance >= amount) {
            balance -= amount;
            other.balance += amount;
            cout << "转账成功，当前余额为：" << balance << endl;
        } else {
            cout << "余额不足，转账失败！" << endl;
        }
    }
    // 查询余额
    void checkBalance() {
        cout << "当前余额为：" << balance << endl;
    }
    // 修改密码
    void changePassword(string newPassword) {
        password = newPassword;
        cout << "密码修改成功！" << endl;
    }
    // 修改个人信息
    void changeName(string newName) {
        name = newName;
        cout << "个人信息修改成功！" << endl;
    }
};

// 用户类
class User {
private:
    string username;  // 用户名
    string password;  // 密码
    BankAccount* account;  // 银行账户
public:
    User(string username, string password, BankAccount* account) {
        this->username = username;
        this->password = password;
        this->account = account;
    }
    // 登录
    bool login(string username, string password) {
        if (this->username == username && this->password == password) {
            cout << "登录成功！" << endl;
            return true;
        } else {
            cout << "用户名或密码错误！" << endl;
            return false;
        }
    }
    // 存款
    void deposit(double amount) {
        account->deposit(amount);
    }
    // 取款
    void withdraw(double amount) {
        account->withdraw(amount);
    }
    // 转账
    void transfer(BankAccount& other, double amount) {
        account->transfer(other, amount);
    }
    // 查询余额
    void checkBalance() {
        account->checkBalance();
    }
    // 修改密码
    void changePassword(string newPassword) {
        account->changePassword(newPassword);
    }
    // 修改个人信息
    void changeName(string newName) {
        account->changeName(newName);
    }
};

int main() {
    // 初始化账户
    BankAccount account1("123456", "123456", 1000, "张三");
    BankAccount account2("654321", "654321", 2000, "李四");

    // 初始化用户
    User user1("user1", "123456", &account1);
    User user2("user2", "654321", &account2);

    // 用户登录
    user1.login("user1", "123456");
    user2.login("user2", "123456");

    // 存款
    user1.deposit(500);

    // 取款
    user2.withdraw(1000);

    // 转账
    user1.transfer(account2, 300);

    // 查询余额
    user2.checkBalance();

    // 修改密码
    user1.changePassword("111111");

    // 修改个人信息
    user2.changeName("王五");

    return 0;
}

以上代码只是一个简单的示例，实际应用中还需要添加更多的功能和安全措施。