Angular 9每次更改都会滚动到路线顶部

@NgModule({
  imports: [
    RouterModule.forRoot(routes, { scrollPositionRestoration: 'enabled' })
  ],
  exports: [RouterModule]
})
export class AppRoutingModule { }

import { Component, OnInit } from '@angular/core';
import { Router, NavigationEnd } from '@angular/router';

@Component({
  selector: 'app-root',
  template: '<router-outlet></router-outlet>'
})
export class AppComponent implements OnInit {
  constructor(private router: Router) {}

  ngOnInit() {
    this.router.events.subscribe(event => {
      if (event instanceof NavigationEnd) {
        window.scrollTo(0, 0);
      }
    });
  }
}