角度反应式表单在表单初始化后使用禁用属性设置值

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

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

  constructor(private formBuilder: FormBuilder) { }

  ngOnInit() {
    this.form = this.formBuilder.group({
      yourControl: new FormControl({ value: '', disabled: true })
    });
  }
}

<form [formGroup]="form">
  <input type="text" formControlName="yourControl" [disabled]="true">
</form>

this.form.get('yourControl').setValue('your value');