diff --git a/SD/20240328_4_实践部分/index.qmd b/SD/20240328_4_实践部分/index.qmd
index 0183a07..a2b0bc6 100644
--- a/SD/20240328_4_实践部分/index.qmd
+++ b/SD/20240328_4_实践部分/index.qmd
@@ -97,3 +97,8 @@ geom_bar(position = "fill")
 ## 综合实践：三维荧光数据处理
 
 
+## 欢迎讨论！{.center}
+
+
+`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
+