如何从angular设置表单组数据

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

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

  constructor(private formBuilder: FormBuilder) {
    this.myForm = this.formBuilder.group({
      firstName: '',
      lastName: '',
      email: ''
    });
  }
}

<form [formGroup]="myForm">
  <label for="firstName">First Name:</label>
  <input type="text" id="firstName" formControlName="firstName">

  <label for="lastName">Last Name:</label>
  <input type="text" id="lastName" formControlName="lastName">

  <label for="email">Email:</label>
  <input type="email" id="email" formControlName="email">
</form>

this.myForm.setValue({
  firstName: 'John',
  lastName: 'Doe',
  email: 'john.doe@example.com'
});

this.myForm.patchValue({
  firstName: 'John',
  lastName: 'Doe'
});