On 4/17/2013 12:10 PM, 88888 Dihedral wrote:
Serhiy Storchaka於 2013年4月17日星期三UTC+8下午5時35分07秒寫道：
17.04.13 07:57, Larry Hudson написав(ла):
So using a list comprehension you can do it in two lines:
def get_rule(num):
bs = bin(num)[2:]
return [0] * (8 - len(bs)) + [int(i) for i in bs]
You can do it in one line!
def get_rule(num):
return list(map(int, '{:08b}'.format(num)))
Well, a new object is returned and can be used.
Then who is going to clean up the object when required?
This is a key thing to understand about Python: memory is managed
automatically, no one has to clean up the object. Once there are no
names referring to the object, it will be cleaned up automatically.
--Ned.
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