save project

diy.py

 #file = open(r"C:\Users\no3\Documents\lesson12-1\sales_list.txt",'r',encoding='utf-8') 
+final_sum=[]
 with open(r'C:\Users\no3\Documents\lesson12-1\sales_list.txt','r',encoding='utf-8')as file:
     a = file.readlines()
     for i in a:
@@ -6,4 +7,7 @@ with open(r'C:\Users\no3\Documents\lesson12-1\sales_list.txt','r',encoding='utf-
         sum = 0
         for sales in data[1:]:
             sum += int(sales)
-        print(data[0]sum)
\ No newline at end of file
+        result = data[0]+str(sum)+'\n'
+        final_sum.append(result)
+with open(r'C:\Users\no3\Documents\lesson12-1\new_sales_list.txt','a',encoding='utf-8')as file:
+    file.writelines(final_sum)    
\ No newline at end of file

new_sales_list.txt

+悟空153
+小贝167
+诺依165

sales_list.txt

 悟空 12 15 11 12 11 12 14 13 15 17 21
 小贝 11 14 17 14 19 10 17 16 15 14 20
-诺依 12 17 15 14 13 19 18 11 11 10 25
-
+诺依 12 17 15 14 13 19 18 11 11 10 25
\ No newline at end of file