做题的核心模块开发2

src/views/driverExam/index.vue

@@ -804,7 +804,7 @@ export default defineComponent({
       let select = "";
       if (Array.isArray(answer)) {
         answer.forEach((item) => {
-          select += switchIndexBySelect(
+          select = select+switchIndexBySelect(
             list.value[index].optsArr.indexOf(item)
           );
         });