fix: 解决数值运算精度的问题

package.json

@@ -51,6 +51,7 @@
     "@umijs/test": "^3.2.0",
     "antd-img-crop": "^3.12.0",
     "babel-plugin-transform-remove-console": "^6.9.4",
+    "bignumber.js": "^9.0.1",
     "bizcharts": "^4.0.14",
     "copy-to-clipboard": "^3.3.1",
     "crypto-js": "^4.0.0",

src/pages/afterService/components/ReturnInfoDrawer/effects/useBusinessEffects.ts

@@ -2,14 +2,13 @@
  * @Author: XieZhiXiong
  * @Date: 2020-11-03 18:30:47
  * @LastEditors: XieZhiXiong
- * @LastEditTime: 2021-01-05 13:53:58
+ * @LastEditTime: 2021-01-21 11:29:52
  * @Description: 联动逻辑相关
  */
-import { Modal } from 'antd';
+import lodash from 'lodash';
+import BigNumber from 'bignumber.js';
 import { FormEffectHooks, FormPath } from '@formily/antd';
 import { useLinkageUtils } from '@/utils/formEffectUtils';
-import { useStateFilterSearchLinkageEffect } from '@/formSchema/effects/useFilterSearch';
-import { PublicApi } from '@/services/api';
 
 const { 
   onFieldInputChange$, 
@@ -28,7 +27,7 @@ export const useBusinessEffects = (context, actions) => {
   // 联动退款金额
   onFieldValueChange$('payList.*.refundAmount').subscribe(fieldState => {
     const payListValue = getFieldValue('payList');
-    const amount = payListValue.reduce((pre, now) => +now.refundAmount + pre, 0);
+    const amount = payListValue.reduce((pre, now) => new BigNumber(+now.refundAmount).plus(pre).toNumber(), 0);
     setFieldValue('refundAmount', amount);
   });
 
@@ -39,7 +38,7 @@ export const useBusinessEffects = (context, actions) => {
     const newData = [...getFieldValue('payList')].map(item => {
       return {
         ...item, 
-        refundAmount: +(+value * purchasePriceValue * (item.payRatio / 100)).toFixed(2),
+        refundAmount: +(new BigNumber(+value).multipliedBy(purchasePriceValue).multipliedBy(new BigNumber(item.payRatio).dividedBy(100))).toFixed(2),
       };
     });
     setFieldValue('payList', newData);