save project

diy.py

@@ -8,6 +8,6 @@
 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')
-    for data in file1:
-        if '小强:10本'in data:
+    for data in file:
+        if '小强:10本' in data:
             print('数据在文件中')
             print('数据在文件中')
\ No newline at end of file