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class User(object):
def __init__(self, name,age):
self.name = name
self.age = age
def __str__(self):
return ("我叫 %s 今年 %s" % (self.name,self.age))
Steve = User("Steve", "18")
print(Steve)
class BankAccount(object):
def __init__(self):
self.__balance = 0
def deposit(self,amount):
self.__balance += amount
self.__log()
def withdraw(self, amount):
if amount > self.__balance:
print("余额不足")
else:
self.__balance -= amount
self.__log()
def show_balance(self):
print(f"当前余额： {self.__balance}")
def __log(self):
print("已保存")
acc = BankAccount()
acc.deposit(100)
acc.withdraw(300)
acc.show_balance()
class Animal(object):
def speak(self):
print("动物在叫")
class Dog(Animal):
def speak(self):
print("汪汪叫")
a = Animal()
d = Dog()
a.speak()
d.speak()
class Person(object):
def __init__(self,name):
self.name = name
class Student(Person):
def __init__(self, name, score):
super().__init__(name)
self.score = score
s = Student("Steve", 100)
print(s.name,s.score)
class A:
def hello(self):
print("A")
class B:
def hello(self):
print("B")
class C(A, B):
pass
c = C()
c.hello()
print(C.mro())
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