Angular 4更新后重置表单-保留ngModel值(使用ngForm)

<form #myForm="ngForm">
  <!-- 表单控件 -->
</form>

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

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

  resetForm() {
    this.myForm.resetForm({ value: this.myForm.value });
  }
}