diff --git a/src/UI/Components/Modal/ModalsManage.ts b/src/UI/Components/Modal/ModalsManage.ts
index b064dc7c1..7b1eac0bf 100644
--- a/src/UI/Components/Modal/ModalsManage.ts
+++ b/src/UI/Components/Modal/ModalsManage.ts
@@ -77,6 +77,13 @@ export class ModalManage
         this.m_ModalContainer.addEventListener('keyup', e => this.onKeyUp(e));
         this.m_ModalContainer.addEventListener('focus', e => this.onFocus(e), true);
 
+        //因为这个UI接管了按键操作,所以必须hack它,TODO:以后寻找更好的方法更改这个
+        window.addEventListener("blur", e =>
+        {
+            this.IsAltDown = false;
+            this.IsCtrlDown = false;
+        });
+
         xaop.begin(this.ed.MaskManage, this.ed.MaskManage.OnFocusEvent, (e: KeyboardEvent) =>
         {
             if (this.IsModal)