diff --git a/2019/12/webpack.md b/2019/12/webpack.md
index 1d73417..320d185 100644
--- a/2019/12/webpack.md
+++ b/2019/12/webpack.md
@@ -115,5 +115,9 @@ moudle.export={
 ```
 
 3.更改 package.json
+
+
 script ->dev 改成
- "dev": "webpack-dev-server --config webpack.dev.js --open"
\ No newline at end of file
+ "dev": "webpack-dev-server --config webpack.dev.js --open"
+
+4.终端运行 yarn run dev