From 460de97f437a8a74380df1d88fca1ba2cf5aad24 Mon Sep 17 00:00:00 2001
From: dingbo <dingbo8128@163.com>
Date: Wed, 13 Apr 2022 13:44:22 +0800
Subject: [PATCH] docs: hightlight R language

---
 docs-cn/04-connect/_connect_r.mdx | 2 +-
 docs-cn/04-connect/index.mdx      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs-cn/04-connect/_connect_r.mdx b/docs-cn/04-connect/_connect_r.mdx
index 08346993e4..076cbf6670 100644
--- a/docs-cn/04-connect/_connect_r.mdx
+++ b/docs-cn/04-connect/_connect_r.mdx
@@ -1,4 +1,4 @@
-```R
+```r
 > library("DBI")
 > library("rJava")
 > library("RJDBC")
diff --git a/docs-cn/04-connect/index.mdx b/docs-cn/04-connect/index.mdx
index d8ac84f336..f861bdc78e 100644
--- a/docs-cn/04-connect/index.mdx
+++ b/docs-cn/04-connect/index.mdx
@@ -130,7 +130,7 @@ dotnet add package TDengine.Connector
 <TabItem label="R" value="r">
 
 首先系统上要有 TDeninge 客户端驱动，安装目录下有`connector/jdbc/taos-jdbcdriver-xxx-dist.jar`。然后需要安装 R 的依赖包`RJDBC`：
-```R
+```r
 install.packages("RJDBC")
 ```
 
-- 
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