使用python生成一个ATM机的系统

好的，下面是一个简单的ATM机系统代码示例：

# 定义账户类
class Account:
    def __init__(self, account_number, pin, balance):
        self.account_number = account_number
        self.pin = pin
        self.balance = balance

    def withdraw(self, amount):
        if self.balance < amount:
            print("余额不足")
        else:
            self.balance -= amount
            print("取款成功，余额为", self.balance)

    def deposit(self, amount):
        self.balance += amount
        print("存款成功，余额为", self.balance)

    def check_balance(self):
        print("当前余额为", self.balance)


# 定义ATM机类
class ATM:
    def __init__(self, accounts):
        self.accounts = accounts

    def validate_pin(self, account_number, pin):
        for account in self.accounts:
            if account.account_number == account_number and account.pin == pin:
                return True
        return False

    def display_menu(self):
        print("请选择操作：")
        print("1. 取款")
        print("2. 存款")
        print("3. 查询余额")

    def run(self):
        account_number = input("请输入账户号码：")
        pin = input("请输入密码：")

        if not self.validate_pin(account_number, pin):
            print("账户号码或密码错误")
            return

        print("登录成功")

        while True:
            self.display_menu()
            choice = input("请选择操作（输入数字1-3）：")

            if choice == "1":
                amount = int(input("请输入取款金额："))
                for account in self.accounts:
                    if account.account_number == account_number:
                        account.withdraw(amount)
            elif choice == "2":
                amount = int(input("请输入存款金额："))
                for account in self.accounts:
                    if account.account_number == account_number:
                        account.deposit(amount)
            elif choice == "3":
                for account in self.accounts:
                    if account.account_number == account_number:
                        account.check_balance()
            else:
                print("无效的选项，请重新选择")


# 创建账户
accounts = [
    Account("123456", "1234", 1000),
    Account("654321", "4321", 2000),
]

# 运行ATM机
atm = ATM(accounts)
atm.run()

以上代码实现了一个简单的ATM机系统，包括账户类和ATM机类。用户可以输入账户号码和密码登录，然后选择取款、存款或查询余额等操作。请注意，此代码仅供参考，并且可能需要根据您的具体需求进行修改。