码迷,mamicode.com
首页 > 编程语言 > 详细

Python实现文件阅读功能(Python学习笔记)

时间:2015-06-10 10:17:29      阅读:123      评论:0      收藏:0      [点我收藏+]

标签:

#!/usr/bin/python
# Filename: filereader.py
import sys

def readfile(filename):
  ‘‘‘Print a file to the standard output.‘‘‘
  f = file(filename)
  while True:
    line = f.readline()
    if len(line) == 0:
      break
    print line,
  f.close()

if len(sys.argv) < 2:
  print ‘No action specified.‘
  sys.exit()

if sys.argv[1].startswith(‘--‘):
  option = sys.argv[1][2:]
  if option == ‘version‘:
    print ‘Version 1.2‘
  elif option == ‘help‘:
    print ‘‘‘\
      This program prints files to the standard output.
      Any number of files can be specified.
      Options include:
      --version: Prints the version number
      --help : Display this help‘‘‘
  else:
    print ‘Unknown option.‘
sys.exit()
else:
  for filename in sys.argv[1:]:
    readfile(filename)

Python实现文件阅读功能(Python学习笔记)

标签:

原文地址:http://www.cnblogs.com/songyuejie/p/4565216.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!