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(i)
     print(i)