angular4父组件向子组件传值，子组件向父组件传值的方法

父组件向子组件传值 @Input文件目录父组件：father.template.html<h1>父组件</h1><cmt-child [data]=‘data’></cmt-child>father.component.tsimport { Component, OnInit } from ‘@angular/core’;@Component({ selector: ‘cmt-father’, templateUrl: ‘./father.template.html’})export class FatherComponent implements OnInit { data: any = ‘我是传往子组件的值’ ngOnInit() { } ngOnChanges() { }}子组件：（使用@Input修饰器去接收）childcomponent.tsimport { Component, OnInit, Input } from ‘@angular/core’;@Component({ selector: ‘cmt-child’, templateUrl: ‘./child.template.html’})export class ChildComponent implements OnInit { @Input() data: any;//接收父组件的值 ngOnInit() { console.log(this.data) } ngOnChanges() { console.log(this.data) }}这样就把值从父组件传到了子组件！子组件向父组件传值（子组件通过方法借助修饰器@output传值给父组件）子组件childcomponent.tsimport { Component, OnInit, Input, Output, EventEmitter } from ‘@angular/core’;@Component({ selector: ‘cmt-child’, templateUrl: ‘./child.template.html’})export class ChildComponent implements OnInit { @Output(‘checked’) checkedBack = new EventEmitter<any>(); id:any =“我是传给父组件的值” ngOnInit() { } ngOnChanges() { } checkedCallback() { this.checkedBack.emit(this.id); }}child.template.html.html<h1>子组件</h1><button (click)=‘checkedCallback()’>点击传值给父组件</button>父组件father.template.html<h1>父组件</h1><cmt-child (checked)=“checkedBack($event)"></cmt-child>father.component.tsimport { Component, OnInit } from ‘@angular/core’;@Component({ selector: ‘cmt-father’, templateUrl: ‘./father.template.html’})export class FatherComponent implements OnInit { ngOnInit() { } ngOnChanges() { } checkedBack(event) { console.log(event) }}这样子组件通过点击就把值传递给了父组件！