修复CURD代码生成模块-生成的代码报错500

app/admin/library/crud/stubs/mixins/controller/index.stub

@@ -3,11 +3,11 @@
      * 查看
      * @throws Throwable
      */
-    public function index(): void
+    protected function _index(): Response
     {
         // 如果是 select 则转发到 select 方法，若未重写该方法，其实还是继续执行 index
-        if ($this->request->param('select')) {
-            $this->select();
+        if ($this->request && $this->request->get('select')) {
+            return $this->select($this->request);
         }
 
         /**
@@ -24,7 +24,7 @@
             ->order($order)
             ->paginate($limit);
 
-        $this->success('', [
+        return $this->success('', [
             'list'   => $res->items(),
             'total'  => $res->total(),
             'remark' => get_route_remark(),