text: import VXETable from 'vxe-table'
  
  // 创建一个简单的工具栏-按钮渲染
  VXETable.renderer.add('ToolbarButtonRefresh', {
    renderButton (h, renderOpts, params) {
      const { events } = renderOpts
      const { button } = params
      return [
        <vxe-button onClick={ () => { events.click(button) } }>自定义按钮</vxe-button>
      ]
    }
  })
  