save project

diy.py

@@ -7,6 +7,12 @@
 #file1.close()
 #file1.close()
 #file1.close()
 #file1.close()
 
 
-file1= open(r'C:\Users\86138\Desktop\book.txt','a',encoding='utf-8')
-file1.write('小明：12本')
-file1.close()
+#file1= open(r'C:\Users\86138\Desktop\book.txt','a',encoding='utf-8')
+#file1.write('小明：12本\n')
+#file1.close()
\ No newline at end of file
+
+with open(r'C:\Users\86138\Desktop\book.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if '小兰：12本' in data:
+            print('小兰在数据中')
+