python簡單讀取大文件

本文實例講述了python簡單讀取大檔案的方法。分享給大家供大家參考，具體如下：

Python讀取大檔案（GB等級）採用的辦法很簡單：

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

一切交給python解釋器處理，讀取效率很高，佔用資源少。

stackoverflow 參考連結：How to read large file, line by line in python - Stack Overflow

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