1. There is no restriction on setting a member name on Taobao. The only restriction is 5-25 characters, which cannot be too short or too long.
2. Chinese characters, letters, numbers and underscores can be used, such as taobaobao, Taobao, tao_taobao, tao12345.
3. The member name is the ID number, which is unique. Once confirmed, it cannot be modified. Please think about it before writing it.