fix: 修复切换配送方式，地址丢失的问题

src/pages/afterService/components/ExchangeAddressInfo/index.tsx

@@ -2,7 +2,7 @@
  * @Author: XieZhiXiong
  * @Date: 2020-11-06 09:54:04
  * @LastEditors: XieZhiXiong
- * @LastEditTime: 2021-01-18 15:30:22
+ * @LastEditTime: 2021-01-21 13:39:26
  * @Description: 换货收货地址
  */
 import React from 'react';
@@ -145,6 +145,7 @@ const ExchangeAddressInfo: React.FC<ExchangeAddressInfo> = ({
                 if (isEdit) {
                   linkage.show('shippingAddress');
                   linkage.hide('pickupAddress');
+                  linkage.value('shippingAddress', undefined);
                 } else {
                   linkage.hide('*(shippingAddress,pickupAddress)');
                   linkage.show('shippingAddressShow');
@@ -156,6 +157,7 @@ const ExchangeAddressInfo: React.FC<ExchangeAddressInfo> = ({
                 if (isEdit) {
                   linkage.hide('shippingAddress');
                   linkage.show('pickupAddress');
+                  linkage.value('pickupAddress', undefined);
                 } else {
                   setFieldState('shippingAddressShow', fieldState => {
                     fieldState.title = '换货自提地址'
@@ -168,6 +170,7 @@ const ExchangeAddressInfo: React.FC<ExchangeAddressInfo> = ({
               // 无需物流
               case 3: {
                 linkage.hide('*(shippingAddress,pickupAddress)');
+                linkage.value('*(shippingAddress,pickupAddress)', undefined);
                 break;
               };
               default: 

src/pages/afterService/components/ExchangeAddressInfo/schema/index.ts

@@ -2,7 +2,7 @@
  * @Author: XieZhiXiong
  * @Date: 2020-11-09 15:56:35
  * @LastEditors: XieZhiXiong
- * @LastEditTime: 2021-01-18 15:34:24
+ * @LastEditTime: 2021-01-21 13:40:28
  * @Description: 
  */
 import { ISchema } from '@formily/antd';
@@ -25,6 +25,7 @@ export const schema: ISchema = {
           type: 'string',
           enum: DELIVERY_TYPE_ENUM,
           'x-component-props': {
+            placeholder: '请选择', 
             style: {
               width: '80%', 
             }, 

src/pages/afterService/exchangeManage/exchangePrSubmit/verify.tsx

@@ -2,7 +2,7 @@
  * @Author: XieZhiXiong
  * @Date: 2020-11-04 17:22:07
  * @LastEditors: XieZhiXiong
- * @LastEditTime: 2021-01-08 11:27:55
+ * @LastEditTime: 2021-01-21 13:41:41
  * @Description: 
  */
 import React, { useState } from 'react';