You need a special pass when you register, that is, the invitation code (full name: invitation registration code). The invitation code is equivalent to entering the registration code when you use a software. It's the same as an invitation in real life. Only when you receive the invitation code can you register your account. When the forum is open to invite registration, the invitation code becomes a necessary condition for registering the forum. If you want to register an ID, you must obtain a valid invitation code. Generally, the registration function is suspended.
Zhengbaoyun Classroom is an online education cloud platform jointly launched by Zhengbaoyun and China Accounting Online School. It is a platform based on online and offline mixed teaching ideas, which integrates teaching, learning, examination, evaluation, practice and practical training through systematic design to realize educational reform.