diff --git a/howto/how to build and debug with VS2019.md b/howto/how to build and debug with VS2019.md
index c90d7c58..230d5100 100644
--- a/howto/how to build and debug with VS2019.md	
+++ b/howto/how to build and debug with VS2019.md	
@@ -1,10 +1,10 @@
-prerequisite:
+# prerequisite:
 + [VS2019 ](https://visualstudio.microsoft.com/zh-hans/vs/)
 - QT
 - QT tool for VS(installed from VS extension)
 
 
-steps: 
+# steps: 
 
 - configure qt path
 toolbar Extensions=>Qt VS Tools=>Options=>versions.
@@ -15,3 +15,12 @@ add qt installation folder
 
 ref: 
 [1](https://blog.csdn.net/qq_43493715/article/details/109839046)
+
+# build
+
+
+# debug
+after successfully build,in the target folder(where goldendict.exe resides) ,run windeployqt which copy all the necessary files to this folder.
+and copy other missing dlls to this folder. you can click the exe to verify the application can run .
+
+after alll this ,you can debug the application normally.