axios ( {

          method : 'post',

          url : api.exportPlayTime , // 请求地址

          data : {

            choose : type,

            begindate : startDate,

            enddate : endDate

          },

          responseType : 'arraybuffer',

          observe: 'response',

        } )

          .then ( ( res ) => {

            const fileName = ""+filename+".xlsx"

            let blob = new Blob([res.data], {type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"});

            if ( 'download' in document.createElement ( 'a' ) ) { // 非IE下载

              const elink = document.createElement ( 'a' )

              elink.download = fileName

              elink.style.display = 'none'

              elink.href = URL.createObjectURL ( blob )

              document.body.appendChild ( elink )

              elink.click ()

              URL.revokeObjectURL ( elink.href ) // 释放URL 对象

              document.body.removeChild ( elink )

            } else { // IE10+下载

              navigator.msSaveBlob ( blob, fileName )

            }

          })

download(data) {

        if (!data) {

          return

        }

        let url = window.URL.createObjectURL(new Blob([data]))

        let link = document.createElement('a')

        link.style.display = 'none'

        link.href = url

        link.setAttribute('download', 'excel.xlsx')

        document.body.appendChild(link)

        link.click()

      },