创建基础数据服务

src/app/pages/pages.module.ts

@@ -5,12 +5,15 @@ import { PagesRoutingModule } from './pages-routing.module'
 
 import { ComponentsModule } from '../components/components.module'
 
+import { BasicDataService } from './basic-data-service'
+
 @NgModule({
     imports: [
         CommonModule,
         ComponentsModule,
         PagesRoutingModule,
     ],
-    declarations: [PagesComponent]
+    declarations: [PagesComponent],
+    providers: [BasicDataService]
 })
 export class PagesModule { }