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python简单读取大文件的方法

更新时间:2020-04-22 09:00:01 作者:startmvc
本文实例讲述了python简单读取大文件的方法。分享给大家供大家参考,具体如下:Python读取

本文实例讲述了python简单读取大文件的方法。分享给大家供大家参考,具体如下:

Python读取大文件(GB级别)采用的办法很简单:


with open(...) as f:
 for line in f:
 <do something with line>

例如:


with open(filepath,'r') as infile:
 for line in infile:
 print line

一切都交给python解释器处理,读取效率很高,且占用资源少。

stackoverflow参考链接:How to read large file, line by line in python - Stack Overflow

python 读取 大文件