node -v 查看当前安装的nodejs版本

C:\Users\Administrator>node -v
v10.14.2
 

npm -v 查看当前 npm版本

C:\Users\Administrator>npm -v
6.4.1

vue -V查看当前vue的版本

C:\Users\Administrator>vue -V
3.2.1

npm info webpack 查看 webpack安装的版本

C:\Users\Administrator>npm info webpack

webpack@4.35.0 | MIT | deps: 24 | versions: 581
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into m
ultiple bundles, which can be loaded on demand. Support loaders to preprocess fi
les, i.e. json, jsx, es7, css, less, ... and your custom stuff.
https://github.com/webpack/webpack