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id    gid
1      2
2      2
3      3
4      3
5      4
6      5
7      6
8      1
9      2
10    3

idΪ×ÔÔöÖ÷¼ü  gidΪÁíÒ»¸ö±íÖеÄid

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$sql="SELECT * from `tablename` WHERE  `gid` IN (2,3,4) ORDER BY `id` DESC LIMIT 0,16";

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CREATE TABLE `game_vedio` (
  `id` int(20) NOT NULL auto_increment,
  `name` varchar(255) collate utf8_unicode_ci default NULL,
  `filename` varchar(255) collate utf8_unicode_ci default NULL,
  `code` text collate utf8_unicode_ci,
  `content` text collate utf8_unicode_ci,
  `gid` int(20) default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=8 ;



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