You can’t just call a person Wang! If the parents’ surnames are combined as the child’s surname, the country will only recognize a single surname, which is the first character of the name. Except for a few compound surnames recognized by the state. For example: (1) There is a boy whose father's surname is Liu and whose mother's surname is Du. His father named his son Liu Dulong or Liu Du Jianye. The total number of Liu and Du here is only one character, and the total number of characters in Liu Du's "name" cannot be More than seven; (2) His father's surname is Duanmu (no matter what the boy's mother's surname is, the surnames of his parents can no longer be combined as his son's surname). If the son is named Duanmu Jianye, then Duanmu will be considered two The total number of characters following the "name" must not exceed six. Same goes for girls.
As a general rule, no matter which of the two forms is used, the total number of characters in the "name" must not exceed eight, and there is no restriction on the words used.