$dai_query="select pid,name from barotool.class where pid like '_' order by viewInx ";
$dai_result=mysqli_query($dbconn,$dai_query);
$dai_num=0;
while($row_dai_result=mysqli_fetch_row($dai_result)){
$dai_pid=$row_dai_result[0];
$dai_name=$row_dai_result[1];
$stcl_num = $dai_num+2;
echo '