升级typescript校验报错修复--fix1

@CONTROL/树视图/CONTROL-BASE.vue.ftl

@@ -145,7 +145,7 @@ import UIService from '@/uiservice/ui-service';
      * @type {string}
      * @memberof ${srfclassname('${ctrl.codeName}')}Base
      */
-    @Prop() public selectedData?: string;
+    @Prop() public selectedData!: string;
 
     /**
      * 选中值变化