diff --git a/README.md b/README.md
index 51c27b11..72f0d89e 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@
 
 `cd C:\exam_app\app_vue`
 
+运行命令 `npm install`安装必要库
+
 运行命令`npm run serve`
 
 运行成功如下：