我有一個動態 formArray，保存數據，一切工作正常，但我在修補值時遇到問題，而且我在網上找不到任何確切的解決方案。下面是代碼，    <form [formGroup]="educationAndExperienceForm">        <div formArrayName="educationForm">            <div *ngFor="let education of educationAndExperienceForm.controls.educationForm['controls'];let i = index;"                [formGroupName]="i">                <h6 class="text-left circularBold" *ngIf="i == 0"><b>Highest Qualification</b></h6>                <input type="text" class="education-inputs w-100 mt-3" placeholder="School/College/University"                    formControlName="school"                    [ngClass]="{ 'input-error': submitted && educationAndExperienceForm.controls.educationForm.controls[i].invalid }">                <input type="text" class="education-inputs w-100 mt-3" placeholder="Degree Ex: Master's"                    formControlName="degree"                    [ngClass]="{ 'input-error': submitted && educationAndExperienceForm.controls.educationForm.controls[i].invalid }">                <input type="text" class="education-inputs w-100 mt-3"                    placeholder="Field of Education Ex: Computer Science" formControlName="specialization"                    [ngClass]="{ 'input-error': submitted && educationAndExperienceForm.controls.educationForm.controls[i].invalid }">                <div class="text-left">                    <input type="text" class="education-inputs w-100 mt-3" placeholder="Graduate Year"                        formControlName="passed_year"                        [ngClass]="{ 'input-error': submitted && educationAndExperienceForm.controls.educationForm.controls[i].invalid }">                </div>對于我使用的第一種方式，我收到無法使用 forEach.. 錯誤