class Animal: def add_animal(self=0,weight=None, sound=None, color=None): self.weight=weight self.sound=sound self.color=color print(f"动物的重量{self.weight},声音{self.sound},颜色{self.color}")
时间: 2023-06-27 08:02:31 浏览: 41
这是一个定义动物类的代码,其中包含一个add_animal方法,用于添加动物的属性,包括重量、声音和颜色,并最终打印出这些属性。在该类中,self代表类的实例本身,可以通过self来访问该实例的属性和方法。在add_animal方法中,将传入的weight、sound和color参数分别赋值给self的属性,然后使用print函数将这些属性输出。需要注意的是,self=0这行代码是无意义的,并且应该被移除。完整的类定义应该如下所示:
```
class Animal:
def add_animal(self, weight=None, sound=None, color=None):
self.weight = weight
self.sound = sound
self.color = color
print(f"动物的重量{self.weight},声音{self.sound},颜色{self.color}")
```
相关问题
class Animal: def add_animal(self,weight=None, sound=None, color=None): self.weight=weight self.sound=sound self.color=color print(f"动物的重量{self.weight},声音{self.sound},颜色{self.color}") a=Animal a.add_animal()
代码中有一个小错误,需要将第5行的"a=Animal"改为"a=Animal()"。这里是修正后的代码:
```python
class Animal:
def add_animal(self, weight=None, sound=None, color=None):
self.weight = weight
self.sound = sound
self.color = color
print(f"动物的重量{self.weight},声音{self.sound},颜色{self.color}")
a = Animal()
a.add_animal()
```
这段代码定义了一个名为`Animal`的类,包含一个名为`add_animal`的方法。当创建一个`Animal`类的实例并调用`add_animal`方法时,该方法会打印出动物的重量、声音和颜色。在这里,所有这些属性都被设置为`None`。
如下代码实现了继承,请补全代码: class Animal: _total = 0 def __init__(self): ① ._total += 1 class Dog(Animal): __dtotal = 0 def __init__(self): super().__init__() ② .__dtotal += 1 @ ③ . def show(cls): print("animal: ", super()._total, ", dog:", cls.__dtotal) class Bird(Animal): __btotal = 0 def __init__(self): super().__init__() ④ .__btotal += 1 def show(self): print("animal:", super()._total, ", bird:", ⑤ .__btotal) d1 = Dog(); d2 = Dog(); b1 = Bird() d1.show(); b1.show()
答案如下:
class Animal:
_total = 0
def __init__(self):
Animal._total += 1
class Dog(Animal):
__dtotal = 0
def __init__(self):
super().__init__()
Dog.__dtotal = 1
@classmethod
def show(cls):
print("animal: ", super()._total, ", dog:", cls.__dtotal)
class Bird(Animal):
__btotal = 0
def __init__(self):
super().__init__()
Bird.__btotal = 1
def show(self):
print("animal:", super()._total, ", bird:", Bird.__btotal)
d1 = Dog()
d2 = Dog()
b1 = Bird()
d1.show()
b1.show()