本文實例講述了Python按行讀取文件的實現方法。分享給大家供大家參考，具體如下：
小文件：
#coding=utf-8#author: walker#date: 2013-12-30#function: 按行讀取小文件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)大文件：
#coding=utf-8#author: walker#date: 2013-12-30#function: 按行讀取大文件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()希望本文所述對大家Python程序設計有所幫助。
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