009.CI4框架CodeIgniter, 网页访问GET的URL参数获取，分段输出URL参数

<?php namespace App\Controllers\System;

use App\Controllers\BaseController;

class Login extends BaseController
{
    // http://127.0.0.1/CI4/public/index.php/system/login/show

    public function index()
    {
        return ‘曾经沧海难为水，除却巫山不是云。取次花丛懒回顾，半缘修道半缘君。‘;
    }

    public function show($APara1 = ‘参数1‘, $APara2 = ‘参数2‘, $APara3 = ‘参数3‘)
    {
        echo $APara1 . ‘<br>‘;
        echo $APara2 . ‘<br>‘;
        echo $APara3 . ‘<br>‘;
    }
    //--------------------------------------------------------------------

}