diff --git a/slides/meetup/video-playing-address.md b/slides/meetup/video-playing-address.md
deleted file mode 100644
index 2c979ec..0000000
--- a/slides/meetup/video-playing-address.md
+++ /dev/null
@@ -1,17 +0,0 @@
-Video playing address:
-
- 
-
-| meetup           | Video address                                                |
-| ---------------- | -------------------------------------------------- |
-| 201805@Beijing   | http://www.itdks.com/index.php/Act/apply_upgrade/id/2176/mUid/0.html#dingbu |
-| 201806@Shanghai  | http://www.itdks.com/index.php/Act/apply_upgrade/id/2281/mUid/0.html#dingbu |
-| 201807@shenzhen  | http://www.itdks.com/index.php/Act/apply_upgrade/id/2354/mUid/0.html#dingbu |
-| 201809@chengdu   | https://yq.aliyun.com/live/500                     |
-| 201812@hangzhou  | https://yq.aliyun.com/live/652                     |
-| 201901@guangzhou | https://yq.aliyun.com/live/795                     |
-| 201903@nanjing   | https://yq.aliyun.com/live/908                     |
-| 201905@beijing   | https://yq.aliyun.com/live/1081                    |
-| 201907@shenzhen  | https://developer.aliyun.com/live/1222             |
-| 201908@shanghai  | https://developer.aliyun.com/live/1280             |
-| 201910@chengdu   | https://developer.aliyun.com/live/1522             |
\ No newline at end of file