Angular第一个应用用到的模版语法
<div *ngFor="let product of products">
*ngFor循环遍历products数组(类似vue的v-for)
<a [title]="product.name + ' details'"> {{ product.name }} </a>
[title]数据绑定(类似vue的v-bind?)
<p *ngIf="product.description"> Description: {{ product.description }} </p>
*ngIf如果有则显示,没有则不显示(类似vue的v-if)
<button (click)="share()"> Share </button>
(click)事件绑定(类似vue的v-on)
// src/app/product-alerts/product-alerts.component.ts
import { Component, OnInit } from '@angular/core'; import { Input } from '@angular/core';
import { Output, EventEmitter } from '@angular/core'; export class ProductAlertsComponent implements OnInit { @Input() product;// 引入父组件中的product
@Output() notify = new EventEmitter();
constructor() { } ngOnInit() { } }
<!-- src/app/product-list/product-list.component.html --> <app-product-alerts [product]="product"> </app-product-alerts>
(类似vue中绑定值后通过props引入父组件的值)
<!-- src/app/product-alerts/product-alerts.component.html --> <p *ngIf="product.price > 700"> <button (click)="notify.emit()">Notify Me</button> </p>
向父组件发送一个notify事件
<!-- src/app/product-list/product-list.component.html --> <app-product-alerts [product]="product" (notify)="onNotify()"> </app-product-alerts>
父组件收到notify变化,执行onNotify()函数,函数在src/app/product-list/product-list.component.ts中定义

浙公网安备 33010602011771号