angular的hero例子（2）

本文主要是介绍angular的hero例子（2），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

展示多个英雄 *ngfor的使用

代码：
heroes.component.ts

import { Component, OnInit } from '@angular/core';
import { Hero } from '../hero';@Component({selector: 'app-heroes',templateUrl: './heroes.component.html',styleUrls: ['./heroes.component.css']
})
export class HeroesComponent implements OnInit {hero: Hero = {id: 1,name: 'Windstorm'};constructor() { }ngOnInit() {}}

heroes.component.html

<h2>My Heroes</h2>
<ul class="heroes"><li *ngFor="let hero of heroes"[class.selected]="hero === selectedHero"(click)="onSelect(hero)"><span class="badge">{{hero.id}}</span> {{hero.name}}</li>
</ul><div *ngIf="selectedHero"><h2>{{ selectedHero.name | uppercase }} Details</h2><div><span>id: </span>{{selectedHero.id}}</div><div><label>name:<input [(ngModel)]="selectedHero.name" placeholder="name"></label></div></div>

app.component.html

<h1>{{title}}</h1>
<app-heroes></app-heroes>

app.component.ts

import { Component, OnInit } from '@angular/core';
import { Hero } from '../hero';
import { HEROES } from '../mock-heroes';@Component({selector: 'app-heroes',templateUrl: './heroes.component.html',styleUrls: ['./heroes.component.css']
})
export class HeroesComponent implements OnInit {heroes = HEROES;selectedHero: Hero;constructor() { }ngOnInit() {}onSelect(hero: Hero): void {this.selectedHero = hero;}
}

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms'; // <-- NgModel lives hereimport { AppComponent } from './app.component';
import { HeroesComponent } from './heroes/heroes.component';@NgModule({declarations: [AppComponent,HeroesComponent],imports: [BrowserModule,FormsModule],providers: [],bootstrap: [AppComponent]
})
export class AppModule { }

hero.ts

export class Hero {id: number;name: string;
}

mock-heroes.ts

/*** Created by gmy on 2017/12/4.*/
import { Hero } from './hero';export const HEROES: Hero[] = [{ id: 11, name: 'Mr. Nice' },{ id: 12, name: 'Narco' },{ id: 13, name: 'Bombasto' },{ id: 14, name: 'Celeritas' },{ id: 15, name: 'Magneta' },{ id: 16, name: 'RubberMan' },{ id: 17, name: 'Dynama' },{ id: 18, name: 'Dr IQ' },{ id: 19, name: 'Magma' },{ id: 20, name: 'Tornado' }
];

heroes.component.css

.selected {background-color: #CFD8DC !important;color: white;
}
.heroes {margin: 0 0 2em 0;list-style-type: none;padding: 0;width: 15em;
}
.heroes li {cursor: pointer;position: relative;left: 0;background-color: #EEE;margin: .5em;padding: .3em 0;height: 1.6em;border-radius: 4px;
}
.heroes li.selected:hover {background-color: #BBD8DC !important;color: white;
}
.heroes li:hover {color: #607D8B;background-color: #DDD;left: .1em;
}
.heroes .text {position: relative;top: -3px;
}
.heroes .badge {display: inline-block;font-size: small;color: white;padding: 0.8em 0.7em 0 0.7em;background-color: #607D8B;line-height: 1em;position: relative;left: -1px;top: -4px;height: 1.8em;margin-right: .8em;border-radius: 4px 0 0 4px;
}