如何通过python中的for循环创建具有随机属性值的对象？

[weixin_38085456]

美好的一天,每次我通过for循环创建一个对象时,我无法使我的属性值随机.我在这段代码中的目标是,当我实例化一个对象时,每个对象的self.hunger和self.boredom都有不同的值,从0到20,但每次我通过for循环打印生物字典时,他们的self.hunger和self.boredom是一样的.我该如何随意制作？你能解释一下为什么我的代码不起作用吗？这是我的一些代码.任何答案都非常感谢. class Critter(object): """A virtual pet""" import random def __init__(self, name, hunger = random.randrange(0, 21), boredom = random.randrange(0, 21)): self.name = name self.hunger = hunger self.boredom = boredom def __str__(self): rep = "\nCritter object\n" rep += "Name: " + str(self.name) + ", Hunger: " + str(self.hunger) + ", Boredom: " + str(self.boredom) return rep def main(): critters = {} crit_name = input("What do you want to name to your critter?: ") critters[1] = Critter(crit_name) choice = None while choice != "0": print \ (""" Critter Caretaker 0 - Quit 1 - Listen to your critters 2 - Feed your critters 3 - Play with your critters 4 - Create another critter """) elif choice == "4": crit_name = input("What do you want to name your critter?: ") for i in range(len(critters) + 1, 11): critters[i] = Critter(crit_name) break if i == 10: print("\nMaximum critters reached. Cannot create another critter.") 如果你想让整个程序理解我的问题,我会编辑我的问题.请帮我.

[weixin_38108228]

发生这种情况是因为您将随机值作为默认参数传递,并且它们仅被评估一次.试试这种方式： import random class Critter(object): """A virtual pet""" def __init__(self, name, hunger=None, boredom=None): self.name = name self.hunger = hunger if hunger is not None else random.randrange(0, 21) self.boredom = boredom if boredom is not None else random.randrange(0, 21) def __str__(self): rep = "\nCritter object\n" rep += "Name: " + str(self.name) + ", Hunger: " + str(self.hunger) + ", Boredom: " + str(self.boredom) return rep