auto save

diy.py

 with open(r'c:\Users\HP\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\HP\Documents\lesson13-1\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:
-    print(i)
+    data=i.split()
\ No newline at end of file
+    sum=0
+    for sales in data[1:]:
+        sum=sum+int(sales)
+    result=data[0]+str(sum)
+    final_sum.append(result)
+with open(r'c:\Users\HP\Documents\lesson13-1\sales_list.txt','w',encoding='utf-8') as file: 
+    file.writelines(final_sum) 
\ No newline at end of file

sales_list.txt

+悟空 1 2 3
+八戒 2 3 4
\ No newline at end of file