1.yarn stat出错

2.npx nodemon提示要下载packages

MySQL  nodejs 模块 安装命令下不下来咋办啊

老师我这个为啥页面出来乱码了

const http = require ("http");

const server=http.createServer(function(req,res){

    res.writeHead(200,{'Content-Type':'text/plain;charset=utf-8'});

    res.write("这是来自服务器端的字符串");

    res.end();

})

server.listen('3030',function(){

    console.log("正在监听服务器3030端口");

})

老师，为什么显示获取不到fetch？？

解压的时候报错，代码如下：

const fs = require('fs')

const zlib = require('zlib')

const readstream = fs.createReadStream('input.txt')

const writestream = fs.createWriteStream('output.txt')

readstream.pipe(writestream)

const writestreamgz = fs.createWriteStream('input.txt.gz')

readstream.pipe(zlib.createGzip()).pipe(writestreamgz)

// 报错

fs.createReadStream('input.txt.gz')

    .pipe(zlib.createGunzip())

    .pipe(fs.createWriteStream('output.txt'));

报错信息如下：

node:events:491

      throw er; // Unhandled 'error' event

      ^

Error: unexpected end of file

    at Zlib.zlibOnError [as onerror] (node:zlib:189:17)

Emitted 'error' event on Gunzip instance at:

    at emitErrorNT (node:internal/streams/destroy:151:8)

    at emitErrorCloseNT (node:internal/streams/destroy:116:3)

    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {

  errno: -5,

  code: 'Z_BUF_ERROR'

}

Node.js v18.12.0

老师我上面代码有什么问题，下面file后面格式不对呢

老师，图一的下面怎么就能显示图二的下面，做不出来

老师，为什么我localhost:3030 显示错误呢？get的请求可以，post就不行

Error: ENOENT: no such file or directory, stat 'D:\aavscode\qianduan\第十阶段Node.js\003Express环境搭建\003Express_GetPost.\index.html'