分页导出方式

getExportData(pageData).then((res) => {
        let blob = new Blob([res.file], {
          type:
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
        })
        let a = document.createElement('a')
        a.href = window.URL.createObjectURL(blob)
        a.download = res.name
        a.click()
      })