auto save

diy.py

@@ -6,5 +6,5 @@ file.write("李文：9本\n")
 file.write("张伟：16本\n")
 with open (r"C:\Users\Administrator\Desktop\test.txt","a",encoding="utf-8")as file:
     file.write("小强:10本\n")
-    file.write("李明:15\n")
+    file.write("李明:15本\n")
         
\ No newline at end of file