step:
1.flask app Login (automatic login)
2. Get the song / image resources (stored in the Content database) + content blueprint (get_ * Interface) to create a two-dimensional code +
3.scan_qr Interface + + binding toys toy list display
4.opentoy + WEBSOCKET + sendmusic (FLASKCORS cross-domain request) + ger_qr + friend_list + app, toy thecomfort
5.friend_remark voice reminder (who sent the message) + recv_msg + ai + toyAI unread message store instruction + (Redis database) + charge a voice prompt messages
6.ADD+REQ + req_list +acc_req +ref_req