Golang 导出Excel下载，文件下载

import   "github.com/360EntSecGroup-Skylar/excelize"

func httpexcelDonwnLoad(c *gin.Context) {
    f := excelize.NewFile()

   f.SetCellStr("Sheet1", "A1", "报名时间")
   f.SetCellStr("Sheet1", "B1", "玩法选择")
   f.SetCellStr("Sheet1", "C1", "电话号码")
   f.SetCellStr("Sheet1", "D1", "姓名")


   for i, v := range omrs {
      f.SetCellStr(
         "Sheet1",
         fmt.Sprintf("A%d", i+2),
         v.CreatedAt.Format("2006-01-02 15:04:05"),
      )

      f.SetCellStr(
         "Sheet1",
         fmt.Sprintf("B%d", i+2),
         v.PlayDesc,
      )

      f.SetCellStr(
         "Sheet1",
         fmt.Sprintf("C%d", i+2),
         v.Phone,
      )

      f.SetCellStr(
         "Sheet1",
         fmt.Sprintf("D%d", i+2),
         v.Realname,
      )
   }
    c.Writer.Header().Set("Content-Type", "text/plain")
   disposition := fmt.Sprintf("attachment; filename=\"%s.xlsx\"", url.QueryEscape("某比赛名单"))
   c.Writer.Header().Set("Content-Disposition", disposition)


   c.Writer.WriteHeader(200)

   _, e :=f.WriteTo(c.Writer)
   if e!=nil {
      c.JSON(200, gin.H{
         "errno":  1,
         "errmsg": errorx.Wrap(e).Error(),
      })
      return
   }
}