<%= select_tag "clazz_id", options_for_select(['全国会议', '区域会议', '单校会议', '国赛', '省赛', '夏令营'], ""), { include_blank: true } %>

<%= select_tag "staff_id", options_for_select(@staffs, ""), { include_blank: true } %>

<%= select_tag "manage", options_for_select(@staffs, ""), { include_blank: true } %>

<%= select_tag "assists", options_for_select(@staffs, ""), { include_blank: true } %>