Angular 6:如何在保存事件时绑定formArray值？

<form [formGroup]="myForm">
  <div formArrayName="myFormArray">
    <div *ngFor="let control of myFormArray.controls; let i=index">
      <input type="text" [formControlName]="i">
    </div>
  </div>
</form>

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

@Component({
  selector: 'app-my-component',
  templateUrl: './my-component.component.html',
  styleUrls: ['./my-component.component.css']
})
export class MyComponent implements OnInit {
  myForm: FormGroup;

  constructor(private formBuilder: FormBuilder) { }

  ngOnInit() {
    this.myForm = this.formBuilder.group({
      myFormArray: this.formBuilder.array([])
    });
  }

  onSave() {
    // 获取formArray的值
    const formArrayValue = this.myForm.get('myFormArray').value;
    console.log(formArrayValue);
  }
}