Pull request #3257: 无 jira 任务 refactor: 类型补充

Merge in VISUAL/fineui from ~JIMMY.CHAI/fineui:master to master

* commit 'bba36875288af7f8c063fc6181ffe4028c3d4a3d':
  无 jira 任务 refactor: 类型补充

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

@@ -38,7 +38,7 @@ export declare class BasicButton extends Single {
         trigger?: string | null;
         handler?: Function;
         bubble?: Function | null | string;
-        text?: string;
+        text?: string | ((context: any) => string);
         el?: Obj;
     } & Single["props"];