auto save

diy.py

 num_list=[]
-with open(r"c:\Users\Administrator\Documents\lesson13-1\sales_list.txt",'r',encoding="utf-8")as file1:
+with open(r"c:\Users\Administrator\Documents\lesson13-5\sales_list.txt",'r',encoding="utf-8")as file1:
     text =file1.readlines()
     print(text)
 
-for i in text:
-    data =i.split()
-    total=data[1:]
-    a=0
-    for num in total:
+  for txt in text:
+      data =txt.split()
+      total=data[1:]
+      a=0
+      for num in total:
         a+=int(num)
-    print(data[0]+str(a))
\ No newline at end of file
+      num_list.append((data[0]+str(a)+"\n")  
+  print(num_list) 
+  
+with open(r"c:\Users\Administrator\Documents\lesson13-5\sales_list.txt",'w',encoding="utf-8")as file2:
+  file2.writelines(num_list)
\ No newline at end of file