smarty相关取值问题这是一段程序$wgls_res = $db->exe_sql("select `f_title`,`f_cun`,`f_date`,`f_url`,`f_name`,`f_images`,`f_imgflag` from `user_info_input`);        
              while($wgls_row=mysql_fetch_assoc($wgls_res)){    
                        if($wgls_row["f_images"]<>'')
                           {
                            $wgls_row["f_imgflag"]="pic";
                            }
                          $wgls_str["f_imgflag"]=$wgls_row["f_imgflag"];
                          $wgls_str[]=$wgls_row;
                  }
这是 读取程序<td height="39"><a href="{$new_wgls_str.f_url}" target="_blank">{$new_wgls_str.f_title}{$new_wgls_str.f_imgflag}</a></td>但是  f_url  f_title可以取到值,f_imgflah取不到值