Angular7.1.4+Typescript3.1框架学习（二）

接着第一部分，这篇文章就 Angular cli进行介绍总结：

1. ng g:列出当前命令

ng g

需在angular工程文件夹下执行:

C:\Users\zb\angulardemo\heroes>ng g
Generates and/or modifies files based on a schematic.
usage: ng generate <schematic> [options]

arguments:
  schematic
    The schematic or collection:schematic to generate.

options:
  --defaults
    When true, disables interactive input prompts for options with a default.
  --dry-run (-d)
    When true, runs through and reports activity without writing out results.
  --force (-f)
    When true, forces overwriting of existing files.
  --help
    Shows a help message for this command in the console.
  --interactive
    When false, disables interactive input prompts.

Available Schematics:
  Collection "@schematics/angular" (default):
    appShell
    application
    class
    component
    directive
    enum
    guard
    interface
    library
    module
    pipe
    service
    serviceWorker
    universal

2.  ng generate component component-name:该命令会把生成的组件，

     添加到 src/app/app.module.ts 文件中 @NgModule 的 declarations 列表中声明:

3. ng generate service: 创建服务文件

ng generate service hero

该命令会在 src/app/hero.service.ts 中生成 HeroService 类的骨架。 HeroService类的代码如下：

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root',
})
export class HeroService {

  constructor() { }

}　

4. ng generate module app-routing --flat --module=app：添加 AppRoutingModule

ng generate module app-routing --flat --module=app

• --flat 把这个文件放进了 src/app 中，而不是单独的目录中。
• --module=app 告诉 CLI 把它注册到 AppModule的 imports 数组中。

生成的代码如下：

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';

@NgModule({
  imports: [
    CommonModule
  ],
  declarations: []
})
export class AppRoutingModule { }