diff --git a/typescript/core/func/function.ts b/typescript/core/func/function.ts
index 592d2c1064..55d8015b75 100644
--- a/typescript/core/func/function.ts
+++ b/typescript/core/func/function.ts
@@ -12,7 +12,7 @@ export type _createDistinctName = (array: any[], name: string) => string;
  * @param keyword 关键字
  * @param param  搜索哪个属性
  */
-export type _getSearchResult = (items: any, keyword: any, param: string) => {find: any, match: any}
+export type _getSearchResult = (items: any, keyword: any, param?: string) => { find: any[], match: any[] }
 
 /**
  * 在方法A执行之前执行方法B
@@ -34,4 +34,4 @@ type _function = {
     beforeFunc: _beforeFunc;
     afterFunc: _afterFunc;
 }
-export default _function;
\ No newline at end of file
+export default _function;