angular学习004显示英雄列表

参考来源：https://www.angular.cn/tutorial/toh-pt2

1、创建模拟数据app\mock-heroes.ts

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'}
];

2、引入英雄列表数据、增加选择事件方法app\heroes\heroes.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;
  }
}

3、展示模拟数据app\heroes\heroes.component.html

//TODO 没明白为什么输入框值变了会影响到列表中的值

My Heroes

  

    {{hero.id}}{{hero.name}}
  



  
{{ selectedHero.name | uppercase}} Details
  
id:{{selectedHero.id}}
  

    name:
      
    
  

4、增加样式app\heroes\heroes.component.css
//一直对样式反感，直接复制的

/* HeroesComponent's private CSS styles */
.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;
}