有两个磁盘文件A和B,各存放一行字母,要求把这两个文件中的信息合并(按字母顺序排列), 输出到一个新文件C中。

#!/usr/bin/python
# -*- coding: UTF-8
-*- if __name__ == '__main__':
import string fp = open('test1.txt') a = fp.read() fp.close() fp = open('test2.txt')
b = fp.read() fp.close()
fp = open('test3.txt','w')
l = list(a + b) l.sort() 
s = ''
s = s.join(l)
fp.write(s)

fp.close()

python3 方案：

# -*- coding: UTF-8 -*- 
with open('test1.txt') as f1, open('test2.txt') as f2, open('2.txt', 'w') as f3:
for a in f1: 
    b = f2.read() 
c = list(a + b) c.sort() 
d = '' 
d = d.join(c) 
f3.write(d)