dede联动菜单无法添加二级选择

else if($action=='addenum_save')  
    {  
      if(empty($ename) || empty($egroup))   
      {  
      Showmsg("类别名称或组名称不能为空！","-1");  
      exit();  
 }  
 if($issign == 1 || $topvalue == 0)  
 {  
     $enames = explode(',', $ename);  
     foreach($enames as $ename)  
     {  
  $arr = $dsql->GetOne("SELECT * FROM `dede_sys_enum` WHERe egroup='$egroup' AND (evalue MOD 500)=0 ORDER BY disorder DESC ");  
  if(!is_array($arr)) $disorder = $evalue = ($issign==1 ? 1 : 500);  
  else $disorder = $evalue = $arr['disorder'] + ($issign==1 ? 1 : 500);  
 
  $dsql->ExecuteNoneQuery("INSERT INTO `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`)   
     VALUES('$ename','$evalue','$egroup','$disorder','$issign'); ");   
     }  
     WriteEnumsCache($egroup);    
     ShowMsg("成功添加枚举分类！".$dsql->GetError(), $ENV_GOBACK_URL);  
     exit();  
 } else if ($issign == 3 && $topvalue != 0)  
 {  
     $minid = $topvalue;  
     $maxnum = 500; // 三级子类最多500个  
     $enames = explode(',', $ename);  
     foreach ($enames as $ename)  
     {  
  $arr = $dsql->GetOne("SELECt * FROM `dede_sys_enum` WHERe egroup='$egroup' AND evalue LIKE '$topvalue.%%%' ORDER BY evalue DESC ");  
  if(!is_array($arr))  
  {  
      $disorder = $minid;  
      $evalue = $minid.'.001';  
  }  
  else  
  {  
      $disorder = $minid;  
      preg_match("#([0-9]{1,}).([0-9]{1,})#", $arr['evalue'], $matchs);  
      $addvalue = $matchs[2] + 1;  
      $addvalue = sprintf("%03d", $addvalue);  
      $evalue = $matchs[1].'.'.$addvalue;  
  }  
  $sql = "INSERT INTO `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`)   
     VALUES('$ename','$evalue','$egroup','$disorder','$issign'); ";  
  // echo $sql;exit;  
  $dsql->ExecuteNoneQuery($sql);   
     }  
     // echo $minid;  
     WriteEnumsCache($egroup);  
     ShowMsg("成功添加枚举分类！".$issign, $ENV_GOBACK_URL);  
     exit();  
 } else {  
$minid = $topvalue;  
$maxid = $topvalue + 500;  
$enames = explode(',', $ename);  
   foreach($enames as $ename)  
   {  
 $arr = $dsql->GetOne("Select * From `dede_sys_enum` where egroup='$egroup' And evalue>$minid And evalue<$maxid order by evalue desc ");  
 if(!is_array($arr))  
 {  
  $disorder = $evalue = $minid+1;  
 }  
 else  
 {  
  $disorder = $arr['disorder']+1;  
  $evalue = (int)($arr['evalue']+1);  
 }  
 $dsql->ExecuteNoneQuery("Insert into `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`)  
  values('$ename','$evalue','$egroup','$disorder','$issign'); ");  
    }  
    WriteEnumsCache($egroup);  
ShowMsg("成功添加枚举分类！".$issign, $ENV_GOBACK_URL);  
exit();  
     }  
    }