在表单控件中使用方括号绑定语法，例如：

然后在组件中动态初始化表单控件名称，例如：

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

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

  formGroup: FormGroup;

  constructor(private formBuilder: FormBuilder) { }

  ngOnInit() {
    this.formGroup = this.formBuilder.group({});
  }

  addControl() {
    const dynamicName = 'dynamicControl';
    this.formGroup.addControl(
      dynamicName,
      new FormControl('', Validators.required)
    );
    // Set dynamicName as the name of the form control
    this.formGroup.controls[dynamicName].setValue('', { onlySelf: true });
  }

}

这样就可以在模板中动态添加表单控件并绑定控件名称。