You can download the online course of Tencent Conference from the courier book bought 10 years ago. Because the easy-code learning machine bought 10 years ago supports online classes in schools: hundreds of app software downloads such as nailing and Teng Xun conference. Therefore, the courier code bought 10 years ago can be downloaded from Tencent's conference online class. Kuaiyidian is a brand of Shenzhen Kuaiyidian Education Technology Co., Ltd., which is a high-tech enterprise integrating R&D, production and sales.