Question

我正在制作一个小动物看守程序，我首先创建了一个类名Critter。我创建的第一个方法是构造函数方法，其中我创建了三个名为“name”，“hunger”，“boredom”的变量。
我在这个课程中创建了很多方法。

我无法弄清楚我做错了什么。

def Critter(object):

    def init(self,name,hunger = 0,boredom = 0):
        self.name = name
        self.hunger = hunger
        self.boredom = boredom

    def increase(self):
        self.hunger += 2
        self.boredom += 2
        return hunger,boredom

    def mood(self):
        unhappiness = self.hunger + self.boredom
        if 5 < unhappiness < 9:
            mood1 =  "unhappy."
        elif 9 < unhappiness < 14:
            mood1 = "Frustrated"
        elif unhappiness > 14:
            mood1 =  "Mad"
        return mood1

    def talk(self):
        print "Critter's name is ",self.name.upper()," and it is ",self.mood()," today."

    def eat(self,food = 4):
        self.hunger -= food
        if self.hunger < 0:
            self.hunger = 0
        self.increase()

    def play(self,play = 4):
        self.boredom -= play
        if self.boredom < 0:
            self.boredom = 0
        self.increase()

def main():
    choice = None
    name = raw_input("Please enter the name of the critter = ")
    crit1 = Critter(name)
    while choice != 0:

        print """

        0 - EXIT
        1 - SEE YOUR CRITTER'S MOOD
        2 - FEED YOUR CRITTER
        3 - PLAY WITH YOUR CRITTER

        """
        choice = int(raw_input("Enter your choice = "))
        if choice == 1:
            crit1.talk()

        elif choice == 2:
            crit1.eat()

        elif choice == 3:
            crit1.play()

    if choice == 0:
        print "Good bye ......"

main()


THIS IS THE CODE ,when i run it shows an error 

Traceback (most recent call last):
  File "C:\Users\sahib navlani\Desktop\gfh.py", line 65, in <module>
    main()
  File "C:\Users\sahib navlani\Desktop\gfh.py", line 54, in main
    crit1.talk()
AttributeError: 'NoneType' object has no attribute 'talk'

Answer 1

你至少有两个问题。

一个是你需要使用

class Critter(object):

不是

def Critter(object):

第二个是

    def init(self, name, hunger=0, boredom=0):

应该是

    def __init__(self, name, hunger=0, boredom=0):

编译代码时出现属性错误

1 个答案: