I already installed node and npm that day.
Go to the computer and open CMD command to write it down.
$ node -v
$ npm -v
Displays the version number but cannot install the package manager such as find
$ npm install XXX!
Dear gods, solve!Picture description
ECONNRESETThis should be because the network has been reset, that is, npm failed to download the package.
It is suggested to use the mirror image of Taobao in China:https://npm.taobao.org/
How to use it is explained on the front page