diff --git a/README.md b/README.md
index c79649a..c2fae1b 100644
--- a/README.md
+++ b/README.md
@@ -157,3 +157,6 @@ http://ex.fibo.cn 申请账号请加群
 https://docs.qq.com/sheet/DSnpRV1JWdkNvaG9u
 
  ![|](./image/22791658996413_.pic.jpg)
+### 9 视频demo
+https://www.bilibili.com/video/BV12N4y1L7Kt
+