fix: visual board dashBoardComponent can not echo data

@@ -7,7 +7,7 @@ import {
   DataSource,
   GradientInfo,
 } from '/@/api/dataBoard/model';
-import { isArray, isNumber } from '/@/utils/is';
+import { isArray } from '/@/utils/is';
 import { buildUUID } from '/@/utils/uuid';
 
 export interface GradientInfoRecord {
@@ -256,7 +256,7 @@ export const update_instrument_2_font = (radioRecord: RadioRecord) => {
 };
 
 const handleValue = (value: any) => {
-  return isNumber(value) ? Number(value).toFixed(2) : 0;
+  return isNaN(value) ? 0 : Number(value).toFixed(2);
 };
 
 export const update_instrument_1_value = (params: DashBoardValue) => {
@@ -271,6 +271,7 @@ export const update_instrument_1_value = (params: DashBoardValue) => {
         ) / 2
       : 100 / 2;
   max = value > max ? max * 2 : max;
+
   return {
     series: [
       {