一.node 简单案例

1.静态服务器

//一个静态服务器，启动静态资源文件
const http = require("http")
const fs = require("fs")
const app = http.createServer()

app.on("request", (req, res) => {
  console.log(__dirname + req.url)
  fs.readFile(__dirname + req.url, (err, data) => {
    if (err) {
      console.log(err)
    } else {
      res.writeHead(200, {
        "Content-Type": "text/html",
      })
      console.log("a", data.toString())
      res.write(data.toString())
    }
  })
})

app.listen(3000, () => {
  console.log("连接到3000端口")
})