Python按行讀取檔案的實現方法【小檔案和大檔案讀取】，

Python按行讀取檔案的實現方法【小檔案和大檔案讀取】，

本文執行個體講述了Python按行讀取檔案的實現方法。分享給大家供大家參考，具體如下：

小檔案：

#coding=utf-8#author: walker#date: 2013-12-30#function: 按行讀取小檔案all_lines = []try:  file = open('txt.txt', 'r')  all_lines = file.readlines()except IOError as err:  print('File error: ' + str(err))finally:  if 'file' in locals():    file.close()for line in all_lines:  print(line)

大檔案：

#coding=utf-8#author: walker#date: 2013-12-30#function: 按行讀取大檔案try:  file = open('txt.txt', 'r')  for line in file:    print(line)except IOError as err:  print('File error: ' + str(err))finally:  if 'file' in locals():    file.close()