python将文本分每两行一组并保存到文件

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业务需求

需要将文本文件分每两行一组

jb51.txt

1:www.uoften.com
2:www.uoften.com
3:www.uoften.com
4:www.uoften.com
5:www.uoften.com
6:www.uoften.com
7:www.uoften.com
8:www.uoften.com
9:www.uoften.com
10:www.uoften.com
11:www.uoften.com
12:www.uoften.com
13:www.uoften.com
14:www.uoften.com
15:www.uoften.com
16:www.uoften.com

核心代码：

# -*- coding: utf-8 -*-
'''
python读取文件，每两行为一组
'''
def fenhang(infile,outfile):

 infopen = open(infile,'r',encoding='utf-8')
 outopen = open(outfile,'w',encoding='utf-8')
 lines = infopen.readlines()
 i = 1
 for line in lines:
  if i % 2 == 0:
   outopen.write(line+'\n')
  else:
   outopen.write(line)
  i += 1
 infopen.close()
 outopen.close()
fenhang("jb51.txt","o.txt")

通过执行 python jb51.txt

o.txt的内容