save project

diy.py

 with open(r"c:\Users\丽达玛酷10号\Documents\lesson13-1\sales_list.txt",encoding='utf-8') as file:
 with open(r"c:\Users\丽达玛酷10号\Documents\lesson13-1\sales_list.txt",encoding='utf-8') as file:
     a = file.readlines()
     a = file.readlines()
     for i in a:
     for i in a:
-        print(a)
+        print(i)