python练习题-9-6

本代码是《Python核心编程(第二版)》第九章的9-6练习题，完成的功能为：文件比较：比较两个文本文件是否相同，如果不同，给出第一个不同处的行号和列号。

 #!/usr/bin/env python
 #-*- coding: utf-8 -*-

 #文件比较：比较两个文本文件是否相同，如果不同，给出第一个不同处的行号和列号
 def func_9_6():
     choice1 = raw_input("Enter one filename: ")
     choice2 = raw_input("Enter another filename: ")
     if choice1 == '' or choice2 == '':
         return
     f1 = open(choice1)
     f2 = open(choice2)
     lines1 = f1.readlines()
     lines2 = f2.readlines()
     lines_tmp1 = len(lines1) if len(lines1) < len(lines2) else len(lines2)
     for i in range(lines_tmp1):
         if lines1[i] == lines2[i]:
             continue
         lines_tmp2 = len(lines1[i]) if len(lines1[i]) < len(lines2[i]) else len(lines2[i])
         for j in range(lines_tmp2):
             if lines1[i][j] == lines2[i][j]:
                 continue
             else:
                 print '%s is not equal of %s, col:%d raw:%d\n' % (choice1, choice2, i+1, j+1)
     if  len(lines1) == len(lines2) and i == lines_tmp1-1:
         print '%s is equal of %s\n' % (choice1, choice2)  

 def showmenu():
     while True:
         choice = raw_input("Enter question num, (Q)uit: ")
         if choice.lower() == 'q':
             break
         if choice == '9-6':
             func_9_6()

 if __name__ == '__main__':
     showmenu()

测试结果：

 [root@192 python_code]# python file_operate.py
 Enter question num, (Q)uit: 9-6
 Enter one filename: testfile
 Enter another filename: testfile
 testfile is equal of testfile

 Enter question num, (Q)uit: 9-6
 Enter one filename: testfile
 Enter another filename: myfile
 testfile is not equal of myfile, col:1 raw:6

 Enter question num, (Q)uit: 

两个文件testfile和myfile的内容如下：

[root@192 python_code]# more testfile
hello
world
[root@192 python_code]# more myfile
helloworld
[root@192 python_code]#