组件Angular 2/4的调用方法

ng generate component my-component

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { MyComponent } from './my-component/my-component.component';

@NgModule({
  declarations: [
    AppComponent,
    MyComponent
  ],
  imports: [
    BrowserModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

<app-my-component></app-my-component>

import { Component, Input } from '@angular/core';

@Component({
  selector: 'app-my-component',
  template: `<div>{{ childData }}</div>`,
})
export class MyComponent {
  @Input() childData: string;
}

<app-my-component [childData]="'Hello from parent'"></app-my-component>

import { Component, Output, EventEmitter } from '@angular/core';

@Component({
  selector: 'app-my-component',
  template: `<button (click)="sendDataToParent()">Send Data</button>`,
})
export class MyComponent {
  @Output() dataEvent = new EventEmitter<string>();

  sendDataToParent() {
    this.dataEvent.emit('Hello from child');
  }
}

<app-my-component (dataEvent)="handleChildData($event)"></app-my.component>

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `<app-my-component (dataEvent)="handleChildData($event)"></app-my-component>`,
})
export class AppComponent {
  handleChildData(data: string) {
    console.log('Received data from child:', data);
  }
}