Pull request #1669: 无JIRA任务 声明返回值问题

Merge in VISUAL/fineui from ~WINDY/fui:master to master

* commit 'de9045e0120c55181f5470700e7a31f8813a291e':
  无JIRA任务 声明返回值问题

typescript/base/single/button/button.node.ts

@@ -1,7 +1,7 @@
 import { _BasicButton, BasicButton } from "./button.basic";
 
 export interface _NodeButton extends _BasicButton {
-    isOpened(): void;
+    isOpened(): boolean;
 
     setOpened(b: boolean): void;