auto save

diy.py

@@ -2,5 +2,6 @@
 filter=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
 filter.write('小兰: 12本')
 filter.close()
-with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as file:
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as filter:
     filter.write("小强：13本")
+    
\ No newline at end of file