save project

diy.py

@@ -7,4 +7,9 @@ file1.close()
 file=open(r'C:\\Users\\user\\Desktop\\book.txt','a',encoding='utf-8')
 file.write('小强:10本\n')
 file.write('李明:15本\n')
-file.close()
\ No newline at end of file
+file.close()
+with open(r'C:\\Users\\user\\Desktop\\book.txt','r',encoding='utf-8')as 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