JEECG中JvxeTable去掉新增按钮

<j-vxe-table
          keep-source
          :ref="refKeys[0]"
          :loading="mroProduceOccasionallyBatchReserveInfoTable.loading"
          :columns="mroProduceOccasionallyBatchReserveInfoTable.columns"
          :dataSource="mroProduceOccasionallyBatchReserveInfoTable.dataSource"
          :maxHeight="300"
          :disabled="formDisabled"
          :rowNumber="true"
          toolbar
          :toolbarConfig='toolbarConfig'
          @valueChange="handleValueChange"
        >

定义一个config对象

 toolbarConfig: {
          // add 新增按钮；remove 删除按钮；clearSelection 清空选择按钮
          btn: ['remove']
        },