控制反转？

统一接口
$sdkManager = SdkManager::resolve();
$resp = $sdkManager->login();Copy

$this->app->singleton('sdk_manager', function () {
    return new SdkManager();
});Copy

class SdkManager
{
    protected $managers = [];

    /**
     * @param null $sdk_type
     * @param $data
     * @return mixed
     * @throws Exceptions
     */
    public  function resolve($sdk_type = null){
        $sdk_type = $sdk_type ?: request('sdk_type');
        if (isset($this->managers[$sdk_type])) {
            return new $this->managers[$sdk_type];
        }
        throw new Exceptions(Exceptions::SDK_MANAGER_NOT_FOUND);
    }
}Copy

namespace App\Contracts;
interface  SdkManage
{
    public function login();
    public function pay();
    public function generateSign(array $data = [], $orderId = null, $os = null);
}Copy