select
<select name="build" id=""><option selected disabled>建筑名称</option><option value="1">教学楼01</option><option value="2">教学楼02</option><option value="3">教学楼03</option>
</select>
select
<select name="build" id=""><option selected disabled>建筑名称</option><option value="1">教学楼01</option><option value="2">教学楼02</option><option value="3">教学楼03</option>
</select>