if(!empty($class[1]) && !empty($list[0]['trade_name'][0])){
$category = $list[0]['trade_name'][0];
}elseif(!empty($class[1]) && empty($list[0]['trade_name'][0])){
$category = ['cate_name'=>Db::name("store_category")->where('id',$class[1])->value("cate_name")];
}else{
$category = ['cate_name'=>''];
}
$this->assign('class',!empty($class)?$class[0]:0);
$this->assign('class1',!empty($class)?$class[1]:0);
$this->assign(compact('zxfloor','industryList','list','category'));
//seo信息
if($class[0]==1){
$seotitle = $category['cate_name']."展会资讯_".$category['cate_name']."展会新闻_".$category['cate_name']."展会动态-世展网";
$seokeyword = $category['cate_name']."展会资讯,".$category['cate_name']."展会新闻,".$category['cate_name']."展会动态,".$category['cate_name']."行业现状";
$seodescription = "世展网提供最新的".$category['cate_name']."新闻资讯、展览会实时报道、".$category['cate_name']."行业最新政策,市场分析,行业现状等,为您参加".$category['cate_name']."国际展会更安心,更加了解国内外展会行业新闻动态。";
}elseif($class[0]==2){
$seotitle = $category['cate_name']."新闻资讯_最新行业动态-世展网";
$seokeyword = $category['cate_name']."展会资讯,".$category['cate_name']."展会新闻,".$category['cate_name']."展会动态,".$category['cate_name']."行业现状";