Python面向对象账户存款与扣款功能代码实现咨询

扣款功能需要覆盖几个核心逻辑，以下是具体实现和完善后的完整代码：

class Account:
    last_id = 1000

    def __init__(self, customer):
        self.customer = customer
        Account.last_id += 1
        self.id = Account.last_id
        self._balance = 0

    def deposit(self, amount):
        if amount > 0:
            self._balance += amount
            print(f'Deposit successful, current balance: {self._balance}')
        else:
            print('Invalid deposit amount, must be greater than 0')

    def charge(self, amount):
        # 验证扣款金额合法性
        if amount <= 0:
            print('Invalid charge amount, must be greater than 0')
            return
        # 检查余额是否充足
        if self._balance >= amount:
            self._balance -= amount
            print(f'Charge successful, current balance: {self._balance}')
        else:
            print('Insufficient balance for this charge')

逻辑说明： #

• 先判断扣款金额是否为正数，若不是直接提示无效金额
• 余额足够时，从账户余额中扣除对应金额并打印更新后的余额
• 余额不足时，提示无法完成扣款操作

另外修正了原deposit方法的不合理提示：原代码中金额不大于0时错误提示“操作成功”，现在改为提示无效金额，逻辑更严谨。

内容的提问来源于stack exchange，提问作者Mery p.