Angular 2如何在多个组件中使用google地图

<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY"></script>

<div id="map"></div>

import { Component, ViewChild, ElementRef } from '@angular/core';

@Component({
  selector: 'app-map',
  templateUrl: './map.component.html',
  styleUrls: ['./map.component.css']
})
export class MapComponent {
  @ViewChild('map', {static: true}) mapElement: ElementRef;

  map: google.maps.Map;

  ngAfterViewInit() {
    this.map = new google.maps.Map(this.mapElement.nativeElement, {
      center: {lat: -34.397, lng: 150.644},
      zoom: 8
    });
  }
}

<app-map></app-map>