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Python-递加计数器

Posted on 2018-01-26 17:22  Stephen.Yuan  阅读(2049)  评论(0)  编辑  收藏  举报

计数本：number.txt

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主程序：计数器

 1 # Author: Stephen Yuan
 2 # 递加计算器
 3 import os
 4 
 5 # 递加计算器
 6 def calc():
 7     file_size = os.path.getsize('number.txt')
 8     count = 1
 9     if file_size == 0:
10         while True:
11             with open('number.txt', 'a', encoding='utf-8') as f:
12                 f.write(str(count) + '\n')
13             print(count)
14             count += 1
15             if_choice()
16     elif file_size != 0:
17         while True:
18             with open('number.txt', 'r+', encoding='utf-8') as f:
19                 lines = f.readlines()
20                 last_line = int(lines[-1])  # 获取文件的最后一行内容
21                 print(last_line)
22                 last_line += 1
23                 f.write(str(last_line) + '\n')
24                 if_choice()
25 
26 def if_choice():
27     info = input('请选择：')
28     if info == 'a':
29         calc()
30 
31     elif info == 'r':
32         with open('number.txt.', 'w', encoding='utf-8') as f:
33             pass
34         calc()
35     elif info == 'q':
36         exit()
37 
38 def choice():
39     choice = '''
40 1.计数，请按‘a’
41 2.重置，请按‘r’
42 3.退出，请按‘q’
43     '''.strip()
44     print(choice)
45     info = input('\n请选择：')
46     if info == 'a':
47         calc()
48     elif info == 'r':
49         with open('number.txt.', 'w', encoding='utf-8') as f:
50             pass
51         calc()
52     else:
53         exit()
54 
55 choice()