访问其他类作用域中的angular Singleton serice函数

@Injectable({
  providedIn: 'root'
})
export class MySingletonService {
  // Singleton service function
  myFunction() {
    // Function code here
  }
}

@NgModule({
  imports: [/* Other module imports */],
  declarations: [/* Component declarations */],
  providers: [MySingletonService], // Register Singleton service here
  bootstrap: [/* Root component */]
})
export class AppModule { }

export class MyComponent {
  constructor(private mySingletonService: MySingletonService) {}

  // Access Singleton service function
  myFunction() {
    this.mySingletonService.myFunction();
  }
}