def no**():** print**('2010-01-01'****) f = no print(f())**
输出结果为:
2010-01-01
None
函数执行完毕也没有return语句时,自动return None。
return
return None
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oommcc
def no**():** print**('2010-01-01'****)
f = no
print(f())**
输出结果为:
2010-01-01
None