fix: 修复只有一个数据资产估值时计算不正确

@@ -674,7 +674,7 @@ const incomeCalculateData = computed(() => { //响应式不生效
     resultInfo['折现因子'].push(changeNum(1 / Math.pow((1 + C10), parseFloat(resultInfo['折现年期'][i])), 2, true));
     resultInfo['折现现值'].push(changeNum(parseFloat(resultInfo['折现因子'][i]) * parseFloat(resultInfo['现金流'][i]?.replace(/,/g, '')), 2, true));
   })
-  resultInfo['数据资产估值'] = changeNum(resultInfo['折现现值'].reduce(function (prev, curr, idx, arr) {
+  resultInfo['数据资产估值'] = resultInfo['折现现值'].length < 2 ?  resultInfo['折现现值'][0] : changeNum(resultInfo['折现现值'].reduce(function (prev, curr, idx, arr) {
     return (typeof prev == 'string' ? parseFloat(prev?.replace(/,/g, '')) : parseFloat(prev)) + parseFloat(curr?.replace(/,/g, ''));
   }), 2, true);
   return resultInfo;