$datas = Article::orderBy('art_time', 'desc')->where('art_status','1')->paginate($count);
$firstData = date('Y-m-d',time($datas->first()->published_at));
$firstSign = Sign::where('signTime',$firstData)->first();
foreach ($datas as $key => $article) {
$category=Category::find($article->cate_id);
$result[$key]['cate_name']=$category->cate_name;
$result[$key]['art_id']= $article->art_id;
$result[$key]['art_type']= $article->art_type;
$result[$key]['art_title']=$article->art_title;
$result[$key]['art_editor'] = $article->art_editor;
$result[$key]['art_thumb']=url($article->art_thumb);
$result[$key]['art_description']=$article->art_description;
$result[$key]['art_time']=strtotime($article->published_at);
$result[$key]['commentCount'] = (string)$comments->where('source_id', $article->art_id)->count();
$result[$key]['collectionCount'] = (string)$collections->where('article_id', $article->art_id)->count();
}