NodeJs基础

os 查看日志 生成package文件 npm init -y

npm i os -s npm i cpu-stat -s

// 查看内存占用率
const os =  require('os');
// 查看cpu
const cpuStat = require('cpu-stat')

fs 处理文件

http 请求 构建server const server = http.createServe(()=>) server.listen(3003)

• npm i express --s

const express = require('express')
const app = express()
app.get('/',(req,res)=>{
    res.end('helloWord')
})
app.get('/users',(req,res)=>{
    res.end(JSON.stringify({name:'abc'}))
})
app.listen(3004,()=>{
   console.log('App listen at 3004')
})

实现express

https:github.com/su37josephxia/kaikeba-code