Python 方法中变量加self和不加的区别

2019-11-09 19:49:33

字体：大中小

来源：转载

供稿：网友

这段代码我觉得很好的说明了python中类的方法在加self和不加self的区别。

123456789101112131415161718192021222324252627282930313233343536373839404142434445 >>> class AAA(object):... def go(self):... self.one = 'hello'...>>> class BBB(object):... def go(self):... one = 'hello'...>>> a1 = AAA()>>> a1.go()>>> a1.one'hello'>>> a2 = AAA()>>> a2.oneTraceback (most recent call last): File "<stdin>", line 1, in <module>AttributeError: 'AAA' object has no attribute 'one'>>> a2.go()>>> a2.one'hello'>>> b1 = BBB()>>> b1.go()>>> b1.oneTraceback (most recent call last): File "<stdin>", line 1, in <module>AttributeError: 'BBB' object has no attribute 'one'>>> BBB.oneTraceback (most recent call last): File "<stdin>", line 1, in <module>AttributeError: type object 'BBB' has no attribute 'one'>>> class BBB(object):... def go(self):... one = 'hello'... PRint one... self.another = one...>>> b2 = BBB()>>> b2.go()hello>>> b2.another'hello'>>> b2.oneTraceback (most recent call last): File "<stdin>", line 1, in <module>AttributeError: 'BBB' object has no attribute 'one'