auto save

diy.py

 with open(r"c:\Users\玛酷\Documents\lesson13_2\sales_list.txt","r",encoding="utf-8")as file:
 with open(r"c:\Users\玛酷\Documents\lesson13_2\sales_list.txt","r",encoding="utf-8")as file:
     a=file.readlines()
     a=file.readlines()
     #print(a)
     #print(a)
+fina1_sum=[]    
 for i in a:
 for i in a:
     w=i.split() 
     w=i.split() 
     sum=0
     sum=0
     for s in w[1:]:
     for s in w[1:]:
         sum=sum+int(s)
         sum=sum+int(s)
     r=w[0]+str(sum)
     r=w[0]+str(sum)
-    print(r)           
+    fina1_sum.append(r)
+
+with open(r"c:\Users\玛酷\Documents\lesson13_2\sales_list.txt","a",encoding="utf-8") as file:
+    file.writelines(fina1_sum)            
     
     
\ No newline at end of file