1.可变长度的参数:
e.g:
def tupleVarAgr(agr1,arg2='defultB',*theRest):
print 'agr1:',arg1
print 'agr2:',agr2
for each in the theRest:
print 'anther arg:',eachXthArg
>>>tupleVarAgr('abc')
agr1:abc
agr2:defaultB
>>>tupleVarAgr('abc',123,'xy','wym')
agr1:abc
agr2:123
anther arg:xy
anther arg:wym
2,匿名函数与lambda
lambda [agr1 [,......
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