发布时间:2019-08-06 13:56:23编辑:auto阅读(2075)
#!/usr/bin/env
import datetime
class adair:
def test1(n):
lst=[]
for i in range(n*10000):
lst = lst + [i]
return lst
def test2(n):
for i in range(n*10000):
lst = lst.append(i)
return lst
def test3(n):
return [i for i in range(n*10000)]
def test4(n):
return list(range(n*10000)
if __name__ == '__main__':
f=adair()
start = datetime.datetime.now()
f.test1(2)
end = datetime.datetime.now()
print(end-start)
start = datetime.datetime.now()
f.test2(2)
end=datetime.datetime.now()
print(end-start)
start=datetime.datetime.now()
f.test3(2)
end=datetime.datetime.now()
print(end-start)
start=datetime.datetime.now()
f.test4(2)
end=datetime.datetime.now()
print(end-start)
测试结果如下:
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49421
48628
39318
36396
30802
27620
26606
21432
21292
19640
293°
582°
528°
626°
1331°
704°
1382°
1621°
1278°
1261°