save project

dig.py

 with open (r'c:\Users\玛酷2\Desktop\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
-    for i in a:
+file_sum=[]
+for i in a:
     data=i.split()
     #print(data[1:])
     sum=0
     for sales in data[1:]:
         sum=sum+int(sales)
-        result=data[0]+str(sum)
-        print(result)
+    result=data[0]+str(sum)+'\n'
+    final_sum.append(result)
+
+with open (r'c:\Users\玛酷2\Desktop\new_sales_list.txt','a',encoding='utf-8')as file:
+    file.writelines(final_sum)
+