diff --git a/03-UnrealEngine/Mobile/IOS&Android Engine Package.md b/03-UnrealEngine/Mobile/IOS&Android Engine Package.md
index 13d7a50..05846fc 100644
--- a/03-UnrealEngine/Mobile/IOS&Android Engine Package.md	
+++ b/03-UnrealEngine/Mobile/IOS&Android Engine Package.md	
@@ -16,6 +16,11 @@ rating: ⭐⭐
 2. 更新`Engine\Build\Build.Version`
 3. `Engine\Intermediate\ProjectFiles\UE4.vcxproj中的BRANCH_NAME`
 # 命令行
+完全构建
+```c++
+-set:WithClean=true
+```
+
 ## Win
 ```bash
 cd /d E:/