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My Questions .. about starterlearningpython HOT 4 OPEN

qiwsir avatar qiwsir commented on August 24, 2024
My Questions ..

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Comments (4)

gclove avatar gclove commented on August 24, 2024
# -*- coding:UTF-8 -*- 
import time
n=1 

time_start=time.clock() 
while n<100000000: 
    n=n+1

time_end=time.clock() 
print (time_end-time_start)

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qiwsir avatar qiwsir commented on August 24, 2024

while循环速度慢,建议使用for或者迭代工具等。

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qiwsir avatar qiwsir commented on August 24, 2024

在很多情况写,列表解析是速度快且稳定,是首选。

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qiwsir avatar qiwsir commented on August 24, 2024

我今天提交了一篇关于Python自省的讲授,你可以看看,有解决你疑惑:if __name__ == '__main__'的部分。

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