用编程叙述我的理解。

strut people{

    identity,

    .………………

}people_info

Int main(){

    Request_something(strut people_info){

            Switch(people_info.identity){

                    Case   normal:

                            Sleep(7days);

                            response(“404”);break;

                    Case  party_member:

                            Sleep(7days);

                            response(“403”);break;

                    Case  Civil_servants:

                            response(“building request_info,7 days after will execute.....”);

                            Sleep(7days);

                            execute();break;

                    Case  official:

                            execute();break;

                        }

            }

}