diff --git a/app/src/layout/index.ts b/app/src/layout/index.ts
index 27e5bfd44..9d0740b87 100644
--- a/app/src/layout/index.ts
+++ b/app/src/layout/index.ts
@@ -1,6 +1,10 @@
 import {Wnd} from "./Wnd";
 import {genUUID} from "../util/genID";
 import {addResize, resizeTabs} from "./util";
+/// #if MOBILE
+// 检测移动端是否引入了桌面端的代码
+alert("Need remove unused code");
+/// #endif
 
 export class Layout {
     public element: HTMLElement;