如何在Angular8.0下使用ngx-translate进行国际化配置

npm install @ngx-translate/core @ngx-translate/http-loader rxjs --save

import { BrowserModule } from '@angular/platform-browser';import { NgModule } from '@angular/core';import { AppComponent } from './app.component';// import ngx-translate and the http loaderimport {TranslateLoader, TranslateModule} from '@ngx-translate/core';import {TranslateHttpLoader} from '@ngx-translate/http-loader';import {HttpClient, HttpClientModule} from '@angular/common/http';@NgModule({  declarations: [    AppComponent  ],  imports: [    BrowserModule,    // ngx-translate and the loader module    HttpClientModule,    TranslateModule.forRoot({      loader: {        provide: TranslateLoader,        useFactory: HttpLoaderFactory,        deps: [HttpClient]      }    })  ],  providers: [],  bootstrap: [AppComponent]})export class AppModule { }// required for AOT compilationexport function HttpLoaderFactory(http: HttpClient) {  return new TranslateHttpLoader(http);}

import {Component} from '@angular/core';import {TranslateService} from '@ngx-translate/core';@Component({  selector: 'app-root',  templateUrl: './app.component.html',  styleUrls: ['./app.component.scss']})export class AppComponent {  constructor(private translate: TranslateService) {    translate.setDefaultLang('en');  }}

{ "demo.title": "Translation demo", "demo.text": "This is a simple demonstration app for ngx-translate"}

<div>  <!-- translation: translation pipe -->  <h1>{{ 'demo.title' | translate }}</h1>  <!-- translation: directive (key as attribute)-->  <p [translate]="'demo.text'"></p>  <!-- translation: directive (key as content of element) -->  <p translate>demo.text</p></div>