only research and development, come out one or two samples, get a joint strategy conference, do some PR, increase their exposure, and pave the way for subsequent financing. The market operation of various bicycles for children's shoes is diverse in their pursuit of bicycles. Like the cross-border cooperation between the little yellow car and the little yellow man movie, the eye parts were simply installed on the car, which attracted the attention of users. I remember that I was looking for a little yellow car riding a little yellow man on the street at that time. In the red envelope activity of the little yellow car, there were certain defects in the product at that time (the mechanical combination lock used by the little yellow car), and a lot of wool was smashed. Mobike's scheduled use, festive event tasks, etc. Cycling activities at that time were still very attractive. government intervention After too many bicycles were put on the market, the city appearance and traffic were affected. The government could not bear to turn a blind eye and began to intervene in the control of bicycle chaos. The brutal growth of the bicycle began to be disturbed by external forces. Various bicycles began to actively sms marketing service communicate with government departments. Different cities have introduced different bicycle management policies. Some places prohibit the increase of investment laws, some places bid to place them, and some places