Angular获取Location对象，获取当前网页url、hash、hostname、href、pathname、port、protocal

import { Component, OnInit } from '@angular/core';
import { PlatformLocation } from '@angular/common';
@Component({
  selector: 'app-first',
  templateUrl: './first.component.html',
  styleUrls: ['./first.component.scss']
})
export class FirstComponent implements OnInit {
  constructor(public location: PlatformLocation) { }
  ngOnInit() {
    console.log(this.location);
    console.log(this.location.hash);// "#id=1"
    console.log(this.location.hostname);// "localhost"
    console.log(this.location.href);// "http://localhost:4200/first#id=1"
    console.log(this.location.pathname);// "/first"
    console.log(this.location.port);// "4200"
    console.log(this.location.protocol);// "http:"
  }
}