给单据中的单据编号改为可以编辑，方便用户修改

jshERP-web/src/views/bill/modules/SaleBackModal.vue

@@ -42,7 +42,7 @@
           </a-col>
           <a-col :lg="6" :md="12" :sm="24">
             <a-form-item :labelCol="labelCol" :wrapperCol="wrapperCol" label="单据编号">
-              <a-input placeholder="请输入单据编号" v-decorator.trim="[ 'number' ]" :readOnly="true"/>
+              <a-input placeholder="请输入单据编号" v-decorator.trim="[ 'number' ]" />
             </a-form-item>
           </a-col>
           <a-col :lg="6" :md="12" :sm="24">
@@ -357,7 +357,6 @@
         let detailArr = allValues.tablesValue[0].values
         billMain.type = '入库'
         billMain.subType = '销售退货'
-        billMain.defaultNumber = billMain.number
         for(let item of detailArr){
           totalPrice += item.allPrice-0
         }