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 # Author: Stephen Yuan

 # 递加计算器

 import os

 # 递加计算器

 def calc():

     file_size = os.path.getsize('number.txt')

     count = 1

     if file_size == 0:

         while True:

             with open('number.txt', 'a', encoding='utf-8') as f:

                 f.write(str(count) + '\n')

             print(count)

             count += 1

             if_choice()

     elif file_size != 0:

         while True:

             with open('number.txt', 'r+', encoding='utf-8') as f:

                 lines = f.readlines()

                 last_line = int(lines[-1])  # 获取文件的最后一行内容

                 print(last_line)

                 last_line += 1

                 f.write(str(last_line) + '\n')

                 if_choice()

 def if_choice():

     info = input('请选择：')

     if info == 'a':

         calc()

     elif info == 'r':

         with open('number.txt.', 'w', encoding='utf-8') as f:

             pass

         calc()

     elif info == 'q':

         exit()

 def choice():

     choice = '''

 1.计数，请按‘a’

 2.重置，请按‘r’

 3.退出，请按‘q’

     '''.strip()

     print(choice)

     info = input('\n请选择：')

     if info == 'a':

         calc()

     elif info == 'r':

         with open('number.txt.', 'w', encoding='utf-8') as f:

             pass

         calc()

     else:

         exit()

 choice()