wanyue_yunying_backend/app/admin/controller/Index.php

<?php

namespace app\admin\controller;

use support\Request;

class Index
{
    public function index(Request $request)
    {
        $data = [1,2,3];
        $a = json_encode($data);
        return response($a);
    }

    public function view(Request $request)
    {
        return view('index/view', ['name' => 'webman']);
    }

    public function json(Request $request)
    {
        return json(['code' => 1, 'msg' => 'ok']);
    }

}