Node.js+express Make Web Calculator _node.js

Environment:

Host: WIN10

Express Installation:

1. Install Express-generator

Enter command:

NPM install-g Express-generator

2. Installation of Express

Enter command:

NPM Install-g Express

3. Verify that the installation is successful

Enter command: express-v

View Help: Express--help

To establish a project:

EXPRESS-E Calculator

CD Calculator && npm Install

Run the Default Web page:

Input command: NPM Start or node./bin/www

The port is configured in/bin/www.

You can perform an addition operation.

Source:

View/index.ejs: Add the input box

<! DOCTYPE html>