如何在Angular2 Typescript中返回多个值

function getValues(): any[] {
  return [value1, value2, value3];
}

function getValues(): { value1: any, value2: any, value3: any } {
  return { value1, value2, value3 };
}

function getValues(): Promise<any[]> {
  return new Promise((resolve, reject) => {
    resolve([value1, value2, value3]);
  });
}

import { Observable } from 'rxjs';

function getValues(): Observable<any[]> {
  return new Observable(observer => {
    observer.next([value1, value2, value3]);
    observer.complete();
  });
}