auto save

diy.py

 with open(r'c:\Users\玛酷机器人编程中心\Documents\lesson13_2\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
+z=[]
 for i in a:
     data=i.split()
     sum=0
     for s in data[1:]: 
         sum+=int(s)
     x=data[0]+str(sum)
-    print(x)
\ No newline at end of file
+    z.a
\ No newline at end of file