auto save

diy.py

+with open(r'c:\Users\Administrator\Desktop\sales_list.txt','r',encoding='utf-8') as file:
+    a=file.readlines()
+ns = []
+for i in a:
+    d = i.split()
+    s = 0
+    for sales in d[1:]:
+        s = s + int(sales)
+    zh = d[0] + str(s) + '\n'
+    ns.append(zh)
+with open(r'c:\Users\Administrator\Desktop\sales_list.txt','a',encoding='utf-8') as file:
+    file.writelines(ns)