auto save

diy.py

@@ -6,9 +6,11 @@
 #book1.write("'小强：12本'\n'李明：15本'")
 #book1.write("'小强：12本'\n'李明：15本'")
 #book1.close()
 #book1.close()
 new_date = ""
 new_date = ""
-with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8') as file:
-    for i in :
-        if '小强:12本'in file:
+with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8') as file:
+    for i in file:
+        if '小强:12本'in i:
             i=i.replace('小强:12本','小强:13本')
             i=i.replace('小强:12本','小强:13本')
-new_date+=file
-print(new_date)
+        new_date+=i
+print(new_date)
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-8') as file:
+    file.write(new_date)