save project

diy.py

-with open(r'c:\Users\玛酷L\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as f1
-    print(f1)
\ No newline at end of file
+with open(r'c:\Users\玛酷L\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as f1:
+    a=f1.readlines()
+
+final_sum=[]
+for i in a:
+        d=i.split()
+        #print(d[1:])
+        sum=0
+        for sales in d[1:]:
+            sum=sum+int(sales)
+        result=d[0]+str(sum)+'\n'
+        final_sum.append(result)
+        
+with open(r'c:\Users\玛酷L\Documents\lesson13-1\sales_list.txt','a',encoding='utf-8') as f1:
+    file.writelines(final_sum)
\ No newline at end of file