python3 的lambda
bank.py class Account: def __init__(self, name, number, balance): self.__name = name self.__number = number self.__balance = balance @property def name(self): return self.__name @property def number(self): return self.__number @property def balance(self): return self.__balance def deposit(self, amount): if amount <= 0: print('存款金額不得為負') else: self.__balance += amount def withdraw(self, amount): if amount > self.__balance: print('餘額不足') ...