下拉|下拉列表将下列代码复制到你的代码中，再修改成自己需要的
<?if ($FH_CP<>""){
$seek_cp="select gg,cp from bom where lh='$FH_CP' ";
);
$GG=trim(pg_result($result_cp,0,"gg"));
$CP=trim(pg_result($result_cp,0,"cp"));
$C_G=$CP.' '.$GG;
echo "<option selected value=\"$FH_CP\">$C_G</option>"; }?>
<?for($j=0;$j<$row_fh;$j++){
$gg_fh=trim(pg_result($result_fh,$j,"gg"));
$cp_fh=trim(pg_result($result_fh,$j,"cp"));
$seek_lh="select * from bom where cp='$cp_fh' and gg='$gg_fh' ";
$result_lh=pg_exec($link,$seek_lh);
$lh_fh=trim(pg_result($result_lh,0,"lh"));
$cp_gg=$cp_fh.' '.$gg_fh;
if($lh_fh==$FH_CP){
echo "<option selected value=\"$lh_fh\">$cp_gg</option>";
}
else{
echo "<option value=\"$lh_fh\">$cp_gg</option>";
}
}
?>
