作答矩阵非必选题，未作答时提交时报错

src/views/Answer/components/js/questions.js

@@ -271,7 +271,7 @@ export default defineComponent({
                 return isError;
               });
             }
-          } else if (questionType === 10) {
+          } else if (answer && questionType === 10) {
             // 矩阵多选题，列分组时，校验选项数量
             const cellGroups = (config?.cell_option_groups?.option_group || []).filter((i) => i.groups?.length);
             if (cellGroups.length) {
@@ -338,7 +338,7 @@ export default defineComponent({
               isError = true;
             }
             console.log('===', minSelect, Object.keys(answer), answer, perLineSelectedCount);
-          } else if (questionType === 12) {
+          } else if (answer && questionType === 12) {
             question.error = '';
           } else if (answer && questionType === 14 && Object.keys(answer).length < config.min_select) {
             // 图片多选题