Sorry, I can't give you information about Yang Chengxi's career, but I can give you some information about Yang Chengxi. Yang Chengxi is a lawyer with rich legal practice experience. For many years, he has been committed to the construction of the legal system, and has certain dabbling and attainments in lawyers, scholars, corporate legal consultants and other fields.

I hope the above information is helpful to you. If you want to know more about Yang Chengxi, please visit the relevant official website or consult local legal professionals.