save project

diy.py

 with open(r"c:\Users\Administrator\Documents\lesson13-3\sales_list.txt","r",encoding="utf-8")as Ze:
     Z=Ze.readlines()
+q=[]
 for i in Z:
     #print(i)
     C=i.split()
@@ -7,7 +8,8 @@ for i in Z:
     a=0
     for i in C[1:]:
         a=a+int(i)
-        d=C[0]+str(a)
-    print(d)
-
+    d=C[0]+str(a)+"/n"
+    q.append(d)
+with open(r"c:\Users\Administrator\Documents\lesson13-3\sales_list.txt","w",encoding="utf-8")as Ze:
+    Ze.writelines(q)