diff --git a/Software/Applications/Repo/Ubuntu_安装和设置_Repo.md b/Software/Applications/Repo/Ubuntu_安装和设置_Repo.md
index f75f3b8..66d814f 100644
--- a/Software/Applications/Repo/Ubuntu_安装和设置_Repo.md
+++ b/Software/Applications/Repo/Ubuntu_安装和设置_Repo.md
@@ -2,15 +2,21 @@
 
 ## 安装
 
-    apt-get install repo
+```bash
+apt-get install repo
+```
 
-安装好后，将
+安装好后:
 
-    export REPO_URL='https://mirrors.tuna.tsinghua.edu.cn/git/git-repo/'
+```bash
+vim /usr/bin/repo
+```
 
-写入 ~/.bashrc 文件。最后：
+修改 REPO_URL 为如下值：
 
-    source ~/.bashrc
+```bash
+REPO_URL='https://mirrors.tuna.tsinghua.edu.cn/git/git-repo/'
+```
 
 ## 参考资料