diff --git a/user1.txt b/user1.txt
index 711ceae3b5591d42f2a21b6dcc2facc21147f033..23d223f7c8ae06006dbd41b4b9174ea093de3aed 100644
--- a/user1.txt
+++ b/user1.txt
@@ -8,6 +8,12 @@ a是a
 a 修改了 user1.txt 文件 aaaaaa
 a2
 
+
+b是b
+b不是b
+b不是b2
+
+b不是b3
 a不是a
 a不是a2
 a不是a3