如何使用对象数组在angular 9中获取表单数据[2020年7月29日更新问题]

<form [formGroup]="addressForm">
  <div formArrayName="addresses">
    <div *ngFor="let address of addresses.controls; let i = index" [formGroupName]="i">
      <input formControlName="street" placeholder="Street">
      <input formControlName="city" placeholder="City">
      <button type="button" (click)="removeAddress(i)">Remove</button>
    </div>
  </div>
  <button type="button" (click)="addAddress()">Add Address</button>
</form>

import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, FormArray, Validators } from '@angular/forms';

@Component({
  selector: 'app-address-form',
  templateUrl: './address-form.component.html',
  styleUrls: ['./address-form.component.css']
})
export class AddressFormComponent implements OnInit {
  addressForm: FormGroup;

  constructor(private fb: FormBuilder) { }

  ngOnInit(): void {
    this.addressForm = this.fb.group({
      addresses: this.fb.array([])
    });
  }

  get addresses() {
    return this.addressForm.get('addresses') as FormArray;
  }

  addAddress(): void {
    const addressGroup = this.fb.group({
      street: ['', Validators.required],
      city: ['', Validators.required]
    });
    this.addresses.push(addressGroup);
  }

  removeAddress(index: number): void {
    this.addresses.removeAt(index);
  }
}