//报告的分类的条件叠加搜索
public function paixu_search(){
$baogao_pinlei = new Baogaopinlei();
$baogao_pinlei_res = $baogao_pinlei->get_pinlei();
$this->assign('baogao_pinlei_res', $baogao_pinlei_res);
$search = input('param.pinlei');
$pingtai = input('param.pingtai');
if($search){
$where['pinlei'] = $search;
}
if($pingtai){
$where['pingtai'] = $pingtai;
}
$res = Db::name('baogao_detail')->where($where)->select();
echo Db::name('baogao_detail')->getlastsql();
$this->assign('res',$res);
return $this->fetch('baogaolist');
} 大佬们，我这个条件叠加为什么不是where合并呢，还是单个查出的条件，求指导啊最佳答案
