save project

diy.py

-with open (r'c:\user\cM\Documents\lesson13-1\sales_list.txt',encoding='utf-8')as file:
+with open (rC:\Users\刘翔\Desktop,encoding='utf-8')as file:
   a=file.readlines()
   a=file.readlines()
   print (a)
   print (a)
 for  i in a:
 for  i in a: