這段代碼我覺得很好的說明了python中類的方法在加self和不加self的區別。
| 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' |
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