save project

diy.py

@@ -7,4 +7,10 @@
 #file1.close()
 #file1.close()
 with open(r'C:\Users\dell\Desktop\新建文本文档.txt','a',encoding='utf-8')as file:
 with open(r'C:\Users\dell\Desktop\新建文本文档.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
+with open(r'C:\Users\dell\Desktop\新建文本文档.txt','a',encoding='utf-8')as file1:
+    for data in file1:
+        if '小强: 10本' in data: 
+            print('小强数据在文件中')
+        if '小兰: 12本'in data:
+            print('小兰数据在文件中')     
\ No newline at end of file