npm -version displays nothing

问题

I am new to NodeJS and I just downloaded and installed nodeJS in my windows XP machine. However, after installing whatever npm command I have given, it displays nothing. It just displays the command prompt. See below the response in command prompt.

Your environment has been set up for using Node.js and npm.

C:\Documents and Settings\User>npm -version

C:\Documents and Settings\User>

Being new to nodejs I am not sure how to troubleshoot this issue. Can any one help me with this issue?

Thanks,

Kishore

来源：https://stackoverflow.com/questions/28505015/npm-version-displays-nothing