save project

diy.py

-with open(r'C:\Users\zhang\Documents\lesson13-3\sales_list.txt','r',encoding='utf-8') as d:
+with open(r'C:\Users\zhang\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as d:
     a=d.readlines()
     a=d.readlines()
 for i in a:
 for i in a:
     print(i)
     print(i)
\ No newline at end of file