class Person(object):

? ? def test(a):

? ? ? ? print a

xiaoming = Person()

xiaohong = Person()

print xiaoming.test('xiaoming')

print xiaohong.test('xiaohong')

print xiaoming == xiaohong

運行失敗

Traceback (most recent call last):

? File "index.py", line 8, in?

? ? print xiaoming.test('xiaoming')

TypeError: test() takes exactly 1 argument (2 given)