1.常规
$map2['state'] = 1;
$User->where ( $map2 )->find();
2. OR 查询
$where['name'] = array('neq','liudehua');
$where['age'] = array('eq',10);
$where['_logic'] = 'or';
$map2['_complex'] = $where;
$map2['user']='cc';
3.多字段查询
方式一
$map2['user&age']=array('chen','23','_multi'=>true);
方式二
$map['_string'] = "user = '23' and state =0 ";
