十一的博客

1、下载node2、上传到linux 服务器 /usr/local 目录下3、将tar.xz解压成tar文件 xz -d node-xxxx.tar.xz4、将tar文件解压成文件夹 tar -xvf node-xxxx.tar5、改文件夹的名字，改成nodejs mv node-xxx node6、检测是否安装成功7、建立软连接ln -s /usr/local/nodejs/bin/node /usr/local/binln -s /usr/local/nodejs/bin/npm

let fs = require('fs')let rs = fs.createReadStream('./b.txt')rs.on('open', () => { console.log('可读流打开')})let ws = fs.createWriteStream('a.txt', {flags: 'a'}, (err) => {})rs.on('close', () => { console.log('可读流关闭') ws.close()

const fs = require('fs')fs.writeFile('a.txt','1111',(error)=>{ if(!error){ console.log('文件写入成功') }})