class?Doctor?extends?SystemUser?{
????public?String?department;
????public?String?officers;
????public?Doctor?(String?...){
????????super(name,sex,....);
????}
????public?static?void?main(String[]?args){
????????SystemUser?doctor?=?new?Doctor("李三,男,28...");
????????System.out.println(doctor.name,doctor.sex,....?);
????}
}

是不是這樣的？