修改

app/Http/Controllers/ArticleController.php

@@ -4,6 +4,7 @@ namespace App\Http\Controllers;
 
 use App\Models\Advert;
 use App\Models\Article;
+use Illuminate\Http\Request;
 
 class ArticleController extends Controller
 {
@@ -27,4 +28,18 @@ class ArticleController extends Controller
 
     }
 
+    //搜索
+    public function search(Request $request)
+    {
+        $title    = $request->title;
+        $articles = Article::where('status', 1)
+                           ->when($title, function ($q) use ($title) {
+                               $q->where('title', 'like', "%{$title}%");
+                           })
+                           ->paginate();
+
+        return view('article.search', compact('articles'));
+
+    }
+
 }

app/Http/Controllers/CategoryController.php

@@ -20,7 +20,7 @@ class CategoryController extends Controller
         } else {
             $articles = $category->relations(Category::TYPE_ARTICLE)->paginate(8);
             $parent   = $category;
-            if ($category->childrens->isEmpty()) {
+            if ($category->childrens->isEmpty() && $category->patent) {
                 $parent = $category->parent;
             }
 

app/Http/Controllers/Controller.php

@@ -22,7 +22,7 @@ class Controller extends BaseController
         $categorys = Category::where('status', 1)
                              ->whereIn('type', [Category::TYPE_ARTICLE, Category::TYPE_SHOW])
                              ->where('top_show', 1)
-                             ->orderBy('order', 'desc')
+                             ->orderBy('order', 'asc')
                              ->select('id', 'title')
                              ->get();
         $links     = Link::get();