auto save

diy.py

@@ -12,5 +12,5 @@ for i in a:
     hhh=data[0]+str(sum)+'\n'
     file1_sum.append(hhh)
     # print(hhh)
-with open(r'C:\Users\A22\Desktop\sales_list.txt','r',encoding='utf-8') as file:
-    file.writelines(file1.sum)
\ No newline at end of file
+with open(r'C:\Users\A22\Desktop\sales_list.txt','a',encoding='utf-8') as file1:
+    file1.writelines(file1_sum)
\ No newline at end of file