使用Angular CLI快速创建Angular项目的一些基本概念和写法小结

ng new newApp --skip-install
cd newApp
cnpm install
ng serve --open

import { Component } from '@angular/core';
@Component({
  selector: 'my-comp',
  template: '<ul><li *ngFor='let row of dataList'>ID:{{row.id}} INFO:{{row.info}}</li></ul>',  
  styles: [`ul{background-color: antiquewhite;padding-left: 10px;list-style: none;}`]
  
})
export class MyComponent {
  dataList = [
    { id: 1, info: "Angular" },
    { id: 2, info: "React" },
    { id: 3, info: "Vue" }
  ];  
}

import { NgModule } from '@angular/core';
import { MyComponent } from './my.component';
@NgModule({
  declarations: [
    MyComponent
  ]  
})
......

import { Injectable } from '@angular/core';
export class DataFormat { 
  id: number; 
  info: string; 
}

@Injectable()
export class MyServ {
  getData(): DataFormat[] {
    return [
      { id: 1, info: "Angular" }, 
      { id: 2, info: "React" }, 
      { id: 3, info: "Vue" }
    ];
  }  
}

import { Component } from '@angular/core';
import { MyServ } from './my.service';
@Component({
  providers: [MyServ]  
})

import { MyServ } from './my.service';
......
export class MyComponent {
  dataList: any[];  
  constructor(private demoService: MyServ) {
     this.dataList = this.demoService.getData();
    }  
}

......
import { RouterModule } from '@angular/router';

@NgModule({
  declarations: [MyComponent,My2Component],  
  imports: [  
    RouterModule.forRoot([    
      {path: 'my',component: MyComponent},      
      {path: 'my2',component: My2Component}      
    ])
  ]
  ......
})
......

<a routerLink="/my">toMycomp</a>
<a routerLink="/my2">toMy2comp</a>
<router-outlet></router-outlet>

import { HttpModule }  from '@angular/http';
@NgModule({
  imports: [HttpModule]  
})
......

......
import { Http } from '@angular/http';
......
  constructor(private http: Http) {  
    http.get('assets/XXX.json').forEach(function (data) {    
      console.log(data['_body']);      
    });    
  }  
......