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
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