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node.js基本操作：

查看路徑
PS C:\Users\hao_z\Desktop\php> pwd
Path
----
C:\Users\hao_z\Desktop\php
查看版本
PS C:\Users\hao_z\Desktop\php>node -v
v16.13.0
切換目錄
PS C:\Users\hao_z\Desktop\php> cd 0403
運(yùn)行文件 .js后綴可省略
PS C:\Users\hao_z\Desktop\php\0403> node demo.js
hello world
設(shè)置第三方模塊國內(nèi)鏡像
PS C:\Users\hao_z\Desktop\php\0403> npm config set registry https://registry.npm.taobao.org
建立包倉庫：y為yes，默認(rèn)選擇，否則逐項配置
PS C:\Users\hao_z\Desktop\php\0403>npm init -y
裝置第三方包，install簡寫為i
PS C:\Users\hao_z\Desktop\php\0403> npm i lodash
added 1 package in 2s
卸載第三方包：uni
PS C:\Users\hao_z\Desktop\php\0403> npm uni lodash
removed 1 package, and audited 1 package in 711ms
found 0 vulnerabilities
更新node.js版本
PS C:\Users\hao_z\Desktop\php\0403> npm i npm-check-updates -g 
npm WARN deprecated @npmcli/move-file@2.0.1: This functionality has been moved to @npmcli/fs
added 317 packages in 12s
查看全局包目錄，g：global
PS C:\Users\hao_z\Desktop\php\0403> npm root -g
C:\Users\hao_z\AppData\Roaming\npm\node_modules
全局安裝
PS C:\Users\hao_z\Desktop\php\0403> npm i lodash -g
added 1 package in 2s
全局卸載，全局包必須全局卸載
PS C:\Users\hao_z\Desktop\php\0403> npm uni lodash -g
removed 1 package, and audited 1 package in 804ms
found 0 vulnerabilities
查看包倉庫
PS C:\Users\hao_z\Desktop\php\0403> npm list
0403@ C:\Users\hao_z\Desktop\php\0403
└── lodash@4.17.21
查看全局包
PS C:\Users\hao_z\Desktop\php\0403> npm list -g
C:\Users\hao_z\AppData\Roaming\npm
├── express-generator@4.16.1
├── mkdirp@1.0.4
└── npm-check-updates@16.10.0
安裝生產(chǎn)依賴-S/開發(fā)依賴-D
PS C:\Users\hao_z\Desktop\php\0403> npm i jquery -D
added 1 package in 1s

總結(jié)：

fetch api前端應(yīng)該會常用；node聽說過，沒用過，前面講的模塊不錯，想用模塊應(yīng)該需要用node。

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