Pull request #2058: 无JIRA任务 修改描述

Merge in VISUAL/fineui from ~TELLER/fineui:master to master

* commit 'bf5892c249376aaa9cddce2558041263a049d707':
  chore: 修改描述

typescript/base/single/button/button.basic.ts

@@ -37,7 +37,7 @@ export declare class BasicButton extends Single {
         isShadowShowingOnSelected?: boolean;
         trigger?: string | null;
         handler?: Function;
-        bubble?: Function | null;
+        bubble?: Function | null | string;
     } & Single['props'];
 
     _createShadow(): void;