auto save

diy.py

 with open(r"C:\Users\Administrator\Documents\lesson13-1\sales_list.txt","r",encoding="utf-8") as file:
 with open(r"C:\Users\Administrator\Documents\lesson13-1\sales_list.txt","r",encoding="utf-8") as file:
-    a=file.read()
+    a=file.readlines()
     print(a)
     print(a)
\ No newline at end of file