FormControl}formControlFields.forEach( f => formGroup.addControlgroups:formGroup});在FormGroup.registerControl (forms.js:4352) at FormGroup.addControl (forms.js</em
我正在使用Angular8,并尝试使用addControl将子FormGroup添加到表单中: id: new FormControl(0), }), this.testForm.controls['people'].addControlnew FormGroup({
number: new FormControl('123