[Environment] build Angular (including Hello World)

First, the installation environment

1. Install node.js

　　Download Path: https://nodejs.org/en/download/

　　Verify the command line:

　　

2. Install ts, cli

　　ts： npm install -g typescript 

　　Verify TS:  tsc -v 

　　cli: npm install -g @angular/cli 

　　Verify cli:  ng -v 

二、Hello World

　　1. Create a new folder

　　2. Download the demo helloworld from the git  git clone https://github.com/angular/quickstart Demo  

　　3. VScode open the folder to folder Demo → src → app → app.component.ts, the  export class AppComponent {name = 'Angular ';} converted to  export class AppComponent {name = 'World  ';}

　　4. Angular JS install all the necessary packages required application work. To open the current folder cmd, enter  npm install 

　　5. Run,  NPM Start 

　　

　　

 

Thanks: https://blog.csdn.net/Kangshuo2471781030/article/details/80293009

　　　https://www.tutorialspoint.com/angular2/angular2_hello_world.htm