wb = xlsx_package.workbook
wb.use_shared_strings = true
wb.styles do |s|
  no_wrap_sz = s.add_style :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: false,:horizontal => :center,:vertical => :center }
  sz_all = s.add_style :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center }
  row_cell = s.add_style :bg_color=> "FAEBDC",:border => { :style => :thin, :color =>"000000" },alignment: {wrap_text: true,:horizontal => :center,:vertical => :center }
  blue_cell = s.add_style :bg_color => "FAEBDC", :sz => 10,:height => 25,:b => true, :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :center,:vertical => :center}

  #课堂信息摘要
  wb.add_worksheet(name:course_info[0]) do |sheet|
    sheet.sheet_view.show_grid_lines = false
    course_main_info = course_info[1]
    course_group_info = course_info[2]
    group_info_d = course_group_info[0]
    group_info_detail = course_group_info[1]
    course_main_info.each do |c|
      sheet.add_row c, :style => sz_all  #用户id
    end
    sheet["A1:A7"].each { |c| c.style = row_cell }
    sheet.add_row [],:style => sz_all
    if group_info_detail.count > 0
      sheet.add_row group_info_d, :style => blue_cell
      group_info_detail.each do |group|
        sheet.add_row group, :style => sz_all  #用户id
      end
      sheet.column_info.second.width = 40
    end
  end  #add_worksheet
end