每次在安装express-generator ..
之后，每次键入express-h都会出错。roush@DESKTOP-E5Q8F9C MINGW64 /e/rpt/shopping-cart
$ npm install -g express-generator
C:\Users\roush\AppData\Roaming\npm\express -> C:\Users\roush\AppData\Roaming\npm\node_modules\express-generator\bin\express-cli.js
+ express-generator@4.16.0
updated 1 package in 2.019s
roush@DESKTOP-E5Q8F9C MINGW64 /e/rpt/shopping-cart
$ express
bash: express: command not found
roush@DESKTOP-E5Q8F9C MINGW64 /e/rpt/shopping-cart
$ npm install -g express-generator@4
C:\Users\roush\AppData\Roaming\npm\express -> C:\Users\roush\AppData\Roaming\npm\node_modules\express-generator\bin\express-cli.js
+ express-generator@4.16.0
updated 1 package in 1.42s
roush@DESKTOP-E5Q8F9C MINGW64 /e/rpt/shopping-cart
$ express
bash: express: command not found