diff --git a/SD/1.2_R语言语法基础/index.qmd b/SD/1.2_R语言语法基础/index.qmd
index e5e7810..d5b1ea1 100644
--- a/SD/1.2_R语言语法基础/index.qmd
+++ b/SD/1.2_R语言语法基础/index.qmd
@@ -747,6 +747,7 @@ names(Y) <- c("colA", "colB", "colC")
 
 ```{r}
 #| results: 'asis'
+#| echo: false
 rmdify::slideend(
   wechat = FALSE,
   type = "public",