问在Windows上找不到全局安装的Express.JS

EN

PS C:\Users\testuser\testme> npm install -g express-generator
npm http GET https://registry.npmjs.org/express-generator
npm http 304 https://registry.npmjs.org/express-generator
npm http GET https://registry.npmjs.org/commander
npm http GET https://registry.npmjs.org/mkdirp
npm http 304 https://registry.npmjs.org/commander
npm http 304 https://registry.npmjs.org/mkdirp
npm http GET https://registry.npmjs.org/keypress
npm http GET https://registry.npmjs.org/minimist
npm http 304 https://registry.npmjs.org/keypress
npm http 304 https://registry.npmjs.org/minimist
C:\ProgramData\chocolatey\lib\nodejs.commandline.0.10.31\tools\express -> C:\ProgramData\chocolatey\
lib\nodejs.commandline.0.10.31\tools\node_modules\express-generator\bin\express
express-generator@4.9.0 C:\ProgramData\chocolatey\lib\nodejs.commandline.0.10.31\tools\node_modules\
express-generator
├── commander@1.3.2 (keypress@0.1.0)
└── mkdirp@0.5.0 (minimist@0.0.8)
PS C:\Users\testuser\testme> express
express : The term 'express' is not recognized as the name of a cmdlet, function, script file, or
operable program. Check the spelling of the name, or if a path was included, verify that the path
is correct and try again.
At line:1 char:1
+ express
+ ~~~~~~~
    + CategoryInfo          : ObjectNotFound: (express:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

PS C:\Users\testuser\testme>