Question

下面的代码有效，但是很笨重，我希望hippo实例采用五个值，而不是在init方法中前两个的'description'方法中交换最后两个，以及类变量'' is_alive”。

class Animal(object):
    is_alive = True

    def __init__(self, name, age):
        self.name = name
        self.age = age

    def description(self, location, diet):
        print location
        print diet

hippo = Animal("Jimmy",3)
#hippo = Animal.description(hippo, "zoo", "plants") #errors 


print hippo.name
print hippo.age
print hippo.is_alive

hippo = Animal.description(hippo, "zoo", "plants")  #instance takes on 
#new values -- don't want that; want to append to init values
print hippo

>>>
Jimmy
3
True
zoo
plants

Answer 1

hippo是Animal的实例，您应该调用以下函数：

hippo.description("zoo", "plants")

这里我举一个例子：

class Animal:
    def desc(self):
        print("desc is invoked...")

    @staticmethod
    def description():
        print("description is invoked..")

hippo = Animal()
hippo.desc()
Animal.description()

这是一种调用实例方法的Pythonic方法吗？

1 个答案: