python提示SongBird instance has no attribute 'sound'
本文介绍了python提示SongBird instance has no attribute 'sound'的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
问 题
提示SongBird instance has no attribute 'sound'
_metaclass_ = type
class Bird:
def _init_(self):
self.hungry = True
def eat(self):
if self.hungry:
print 'Aaaaa.....'
self.hungry = False
else:
print 'No, think'
class SongBird(Bird):
def _init_(self):
super(SongBird, self)._init_()
self.sound = 'Squawk!'
def sing(self):
print self.sound
sb = SongBird( )
sb.sing( )
刚开始学python,这是书上的代码。检查过很多遍,就是通不过。
解决方案
_metaclass_ = type
class Bird(object):
def __init__(self):
self.hungry = True
def eat(self):
if self.hungry:
print 'Aaaaa.....'
self.hungry = False
else:
print 'No, think'
class SongBird(Bird):
def __init__(self):
super(SongBird, self).__init__()
self.sound = 'Squawk!'
def sing(self):
print self.sound
sb = SongBird( )
sb.sing( )
__init__
不是_init_
这篇关于python提示SongBird instance has no attribute 'sound'的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文