auto save

diy.py

@@ -9,3 +9,4 @@
 with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8') as file:
 with open(r'C:\Users\Administrator\Desktop\book.txt','a',encoding='utf-8') as file:
     file.write('小强：10本\n')
     file.write('小强：10本\n')
     file.write('李明：15本\n')
     file.write('李明：15本\n')
+    
\ No newline at end of file