求教为什么总在颜色标记处报错呀?!很简单的程序,实在搞得我一头雾水!
本帖最后由 grapegirl 于 2016-7-8 09:12 编辑import random as r
class Fish:
def __init__(self):
self.x = r.randint(0,10)
self.y = r.randint(0,10)
def move(self):
self.x -= 1
print('my location is:',self.x,self.y)
class Goldfish(Fish):
pass
class Carp(Fish):
pass
class Salmon(Fish):
pass
class Shark(Fish):
def __init__(self):
self.hunger = True
def eat(self):
if self.hunger:
print('cicici')
self.hunger = False
else:
print('full!!!')
>>> f = Fish()
>>> f.move()
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
f.move()
File "H:/电影/小甲鱼—《零基础入门学习Python》/code/little programs/fish_inherit.py", line 9, in move
self.x = self.x - 1
AttributeError: 'Fish' object has no attribute 'x' 红色的地方少了个i!init变成了int...编程还需要仔细和小心呀!!在此警示自己!!!
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