fix: '流程中心新增流程编码逻辑优化'

src/pages/bsmanager/workOrder/workflowEdit/workFlowComponents/FlowModal.jsx

 import React, { useState, useEffect } from 'react';
 import { CreateFlow } from '@/services/workflow/workflow';
 import { Form, Modal, Input, notification, Select, Radio } from 'antd';
+import e from 'express';
 const { Option } = Select;
 const { TextArea } = Input;
 const FlowModal = props => {
@@ -449,7 +450,7 @@ const FlowModal = props => {
     }
   };
   const prefix = value => {
-    let str = value;
+    let str = value.currentTarget.value;
     if (typeof str !== 'string') {
       throw new Error(
         -1,
@@ -547,7 +548,13 @@ const FlowModal = props => {
             },
           ]}
         >
-          <Input placeholder="请输入流程名称" onChange={prefix} readOnly={modalType === 'edit'} />
+          <Input
+            placeholder="请输入流程名称"
+            onChange={value => {
+              prefix(value);
+            }}
+            readOnly={modalType === 'edit'}
+          />
         </Form.Item>
         <Form.Item
           label="分组信息"