drs = DataTables("考试数据表").Select("学号 = '" & ksdy2 & "' and 纸考安排 = '安排纸考'","考场号")
改成
drs = DataTables("考试数据表").Select("学号 = '" & ksdy2 & "' and 纸考安排 = '纸考安排'","考场号")