- 250 名前：デフォルトの名無しさん mailto:sage [2010/06/27(日) 15:23:06 ]
- #! /usr/bin/env python
# -*- coding: utf-8 -*-
import datetime
def sample_loop(n):
L = []
for i in range(n):
L.append(i)
return L
def sample_comprehension(n):
return [i for i in range(n)]
d = datetime.datetime.today()
print (":",d.strftime("%Y-%m-%d %H:%M:%S") )
sample_comprehension(50000000)
d = datetime.datetime.today()
print (":",d.strftime("%Y-%m-%d %H:%M:%S") )
sample_loop(50000000)
d = datetime.datetime.today()
print (":",d.strftime("%Y-%m-%d %H:%M:%S") )
実行結果
2010-06-27 15:19:23
2010-06-27 15:19:46
2010-06-27 15:19:46
Python3だとリスト内包表現って遅いの？
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