MySQL Query Error select id,title,subtitle,class from dx_kskm_news where class='参考书' and kskm in ('101思想政治理论','201英语一','611军事基础','811海军军事综合','711军事基础','810导弹武器技术','701军事基础','904战役战术基础','811专业基础','701军事学基础','805战役学基础理论','611军事学基础理论','853联合战役学','903战役基础','651军事学基础','854合同战术学','802运筹学基础','903联合作战基础理论','803雷达原理','809战略预警作战基础','854联合战术学','201英语一或202俄语或203日语','806联合作战学基础理论','751军事基础','803联合作战基础理论','811专业综合','301数学一','842专业基础') order by kskm desc limit -1800,50 Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in D:\wwwroot\dddjyky\wwwroot\lanmu.php on line 331
