Nodejs installation is complete, and execution command appears version number, but cannot execute test JS

First step: Download Nodejs and install

: https://nodejs.org/en/

Can be installed on other disks.

Step Two: Configure environment variables

One is the directory that adds node.exe on path D:\\nodejs

One is to increase the environment variable Node_path, and the value is d:\\nodejs\\node_modules.

Step Three: Install Express

Open the cmd command line, use the command line to navigate to this node directory, type the command NPM install express[installation Express to relative path] or NPM install express-g[installation Express to absolute path]

Finally: Enter node-v on the command line if the output Nodejs version is installed successfully!

I missed the second and third steps, node can also display version, but cannot execute JS code!

Nodejs installation is complete, and execution command appears version number, but cannot execute test JS