我是 angular 的新手，我正在嘗試保存選擇選項(xiàng)標(biāo)簽，但是語言已成功保存，即使我選擇阿拉伯語，選擇選項(xiàng)默認(rèn)顯示英語，當(dāng)頁面刷新時(shí)它會(huì)恢復(fù)為英語，如果您能幫助我實(shí)現(xiàn)這一目標(biāo)，我將不勝感激頁腳.component.html<div class="form-group">   <select (change)="switchLanguage($event)" [ngModel]="lang" style="background-color:        #b3cee5;" class="form-control customized-dropdown alignleft">       <option id="myLanguage" *ngFor="let item of Languages">{{item}}</option>   </select></div>頁腳.component.tsdirectionEn: any;directionAr: anylanguage;userLang;localsettings: LocalSettingsService;Languages : any = ['English', 'Arabic'];lang;constructor(private translate: TranslateService) {  translate.setDefaultLang('en');}switchLanguage(event) {if(event.target.value == 'English'){  this.language = 'en'  this.lang = event.target.value;  this.ChangeToEnglish()} else if(event.target.value == 'Arabic'){  this.language = 'ar'  this.lang = event.target.value;  this.ChangeToArabic();}this.translate.use(this.language);localStorage.setItem('lang', this.lang)localStorage.setItem('language', this.language);}ChangeToEnglish(){  document.querySelector('body')  .setAttribute('style', 'direction: ltr; text-align: left; ');}ChangeToArabic(){  document.querySelector('body')   .setAttribute('style', 'direction: rtl; text-align: right;');}ngOnInit() {  var language = localStorage.getItem('language')  var lang = localStorage.getItem('lang')if(language === 'ar' && lang === "Arabic"){  this.translate.use('ar');  this.ChangeToArabic();}else if(language === 'en' && lang === "English"){  this.translate.use('en');  this.ChangeToEnglish()}}