save project

diy.py

 with open(r'C:\Users\双师04\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     #print(a)
-    n=[]
     for i in a:
         #print(i)
         new_i=i.split()
@@ -9,9 +8,6 @@ with open(r'C:\Users\双师04\Documents\lesson13-1\sales_list.txt','r',encoding=
         sum=0
         for s in new_i[1:]:
             sum+=int(s)
-        r=new_i[0]+str(sum)+"\n"
-        n.append(r)
+        r=new_i[0]+str(sum)
         print(r)
-with open(r'C:\Users\双师04\Desktop\sales_list1.txt','w',encoding='utf-8') as file:
-    file.writelines(n)