auto save

diy.py

 with open(r'C:\Users\玛酷市南1号\Desktop\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'C:\Users\玛酷市南1号\Desktop\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
+final_sum=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     sum=0
     sum=0
     for sales in data[1:]:
     for sales in data[1:]:
         sum=sum+int(sales)
         sum=sum+int(sales)
-    result = data[0] + str(sum)
-    print(result)
+    result = data[0] + str(sum)+'\n'
+    final_sum.append(result)
\ No newline at end of file
+with open(r'C:\Users\玛酷市南1号\Desktop\sales_list.txt','r',encoding='utf-8') as file:
+    file.writelines(final_sum)
\ No newline at end of file