2、第1种写法：
<?phpif($navinfor['writer']){ $writer=$navinfor['writer'];?>[e:loop={"select titleurl,title,writer from phome_ecms_A where writer ='$navinfor[writer]' limit 1",10,24,0}]<?$writer='<a href="'.$bqr['titleurl'].'" target="_blank">'.$bqr['writer'].'</a>';?>[/e:loop]<?php echo $writer;}?>2、第2种写法：
<?php$z=$empire->fetch1("select titleurl,title,writer from phome_ecms_B where id ='$navinfor[id]' limit 1"); //调用本篇文章的作者$zz=$empire->fetch1("select writer from {$dbtbpre}ecms_A where writer = '$z[writer]'"); //调用本篇文章的作者与A表的所有作者对比if(empty($zz[writer])) //判断 如果 对比结果为空{?><?=$navinfor['writer']?><?php}else{ //如果判断结果为真 输出?>[e:loop={"select titleurl,title,writer from phome_ecms_A where writer ='$navinfor[writer]' and writer!='' limit 1",10,24,0}]<a href="<?=$bqr['titleurl']?>" target="_blank"><?=$bqr['writer']?></a>[/e:loop] <?php}?>参考，：52历史，古诗文模板作者
