银行账户管理系统c++

银行账户管理系统通常包括以下功能：

1. 新建账户：输入账户信息，包括账户名、账户类型、账户余额等，生成唯一的账户号码。
2. 存款：输入账户号码和存款金额，更新账户余额。
3. 取款：输入账户号码和取款金额，更新账户余额。
4. 转账：输入转出账户号码、转入账户号码和转账金额，更新两个账户的余额。
5. 查询余额：输入账户号码，显示该账户的余额信息。
6. 修改账户信息：输入账户号码和修改后的账户信息，更新账户信息。
7. 删除账户：输入账户号码，删除该账户信息。

以下是一个简单的银行账户管理系统的C++代码实现：

#include <iostream>
#include <string>
#include <map>

using namespace std;

// 账户类
class Account {
public:
    Account(string name, string type, double balance) : m_name(name), m_type(type), m_balance(balance) { }

    string getname() const {
        return m_name;
    }

    string gettype() const {
        return m_type;
    }

    double getbalance() const {
        return m_balance;
    }

    void deposit(double amount) {
        m_balance += amount;
    }

    void withdraw(double amount) {
        m_balance -= amount;
    }

private:
    string m_name;      // 账户名
    string m_type;      // 账户类型
    double m_balance;   // 账户余额
};

// 银行类
class Bank {
public:
    void addAccount(Account account) {
        m_accounts[getAccountNumber()] = account;
    }

    void deposit(string accountNumber, double amount) {
        m_accounts[accountNumber].deposit(amount);
    }

    void withdraw(string accountNumber, double amount) {
        m_accounts[accountNumber].withdraw(amount);
    }

    void transfer(string fromAccountNumber, string toAccountNumber, double amount) {
        m_accounts[fromAccountNumber].withdraw(amount);
        m_accounts[toAccountNumber].deposit(amount);
    }

    double getBalance(string accountNumber) const {
        return m_accounts[accountNumber].getbalance();
    }

    void modifyAccount(string accountNumber, string name, string type, double balance) {
        m_accounts[accountNumber] = Account(name, type, balance);
    }

    void deleteAccount(string accountNumber) {
        m_accounts.erase(accountNumber);
    }

private:
    string getAccountNumber() {
        static int accountNumber = 1001;
        return to_string(accountNumber++);
    }

    map<string, Account> m_accounts;    // 存储账户信息
};

int main() {
    Bank bank;

    // 新建账户
    Account account1("张三", "储蓄账户", 1000);
    bank.addAccount(account1);
    Account account2("李四", "信用卡账户", 2000);
    bank.addAccount(account2);

    // 存款
    bank.deposit("1001", 500);
    cout << "账户1001余额：" << bank.getBalance("1001") << endl;

    // 取款
    bank.withdraw("1002", 1000);
    cout << "账户1002余额：" << bank.getBalance("1002") << endl;

    // 转账
    bank.transfer("1001", "1002", 300);
    cout << "账户1001余额：" << bank.getBalance("1001") << endl;
    cout << "账户1002余额：" << bank.getBalance("1002") << endl;

    // 修改账户信息
    bank.modifyAccount("1001", "张三", "信用卡账户", 2000);
    cout << "账户1001余额：" << bank.getBalance("1001") << endl;

    // 删除账户
    bank.deleteAccount("1002");
    cout << "账户1002余额：" << bank.getBalance("1002") << endl;  // 输出0，因为该账户已被删除

    return 0;
}