save project

diy.py

 with open(r'c:\Users\玛酷001\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\玛酷001\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
-    print(type(a))
     for i in a:
     for i in a:
         data=i.split()
         data=i.split()
         #print(data)
         #print(data)
@@ -8,4 +7,7 @@ with open(r'c:\Users\玛酷001\Documents\lesson13-4\sales_list.txt','r',encoding
         for sales in data[1:]:
         for sales in data[1:]:
             sum=sum+int(sales)
             sum=sum+int(sales)
         result=data[0]+str(sum)
         result=data[0]+str(sum)
-        print(result)
+        print(result)
\ No newline at end of file
+
+with open(r'c:\Users\玛酷001\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8') as file:
+    a=fill.writelines(final_sum)
\ No newline at end of file