angular2-如何在来自一个根模块的对等模块之间共享组件

import { Component } from '@angular/core';

@Component({
  selector: 'app-shared-component',
  template: '<h1>Shared Component</h1>'
})
export class SharedComponent {
  // Component logic here
}

@NgModule({
  declarations: [
    SharedComponent
  ],
  exports: [
    SharedComponent
  ]
})
export class AppModule { }

import { Component } from '@angular/core';
import { SharedComponent } from 'path-to-root-module';

@Component({
  selector: 'app-other-component',
  template: '<app-shared-component></app-shared-component>'
})
export class OtherComponent {
  // Component logic here
}