不需要也行

app/Http/Controllers/Admin/HostController.php

@@ -25,7 +25,7 @@ public function index(Request $request): View
         // 遍历所有的搜索条件
         foreach (['name', 'module_id', 'status', 'user_id', 'price', 'managed_price', 'created_at', 'updated_at'] as $field) {
             if ($request->has($field)) {
-                $hosts = $hosts->where($field, 'like', '%' . $request->input($field) . '%');
+                $hosts->where($field, 'like', '%' . $request->input($field) . '%');
             }
         }