repo: GitHub - nodejs/node: Node.js JavaScript runtime vcbuild.bat 是一个 Windows 平台下的批处理脚本,用于构建 Node.js 源代码。它使用 Visual Studio 的命令行工具 msbuild 来编译和链接 Node.js 的 C++ …
Node.js comes bundled with thefile system modulewhich allows the developers to interact with the file system of the operating system. This module is commonly used to create, read, update, delete and rename a file. However, before we start performing the above-mentioned operations it is always ...
代码语言:javascript 复制 letfs=require("fs")constuserFile=newDir+'/user.json';console.log(userFile)if(fs.existsSync(userFile)){console.log('user.json file is exists!')constf=`${newDir}/${Date.now()}.json`constfcp=`${newDir}/${Date.now()}cp.json`constcpf=fs.copyFileSync(userFil...
if (exists) { // 目录存在,进行写入操作 // ... } else { // 目录不存在,进行其他处理,比如创建目录 // ... } 需要注意的是,fs.existsSync()方法在最新的Node.js版本中已经被废弃,推荐使用异步的fs.access()方法来检查目录是否存在。示例如下:...
Create file if it does not exist. UVWASI_O_DIRECTORY Fail if not a directory. UVWASI_O_EXCL Fail if file already exists. UVWASI_O_TRUNC Truncate file to size 0. uvwasi_riflags_t (uint16_t bitfield) Flags provided to uvwasi_sock_recv(). Used by uvwasi_sock_recv(). Possible val...
[3]//复制后得到的文件//判断是否存在这个文件if(fs.existsSync(src)){console.log('this file does not exists');process.exit(1);}//将要复制的文件的内容写入文件varstm=fs.createReadStream(src).pipe(fs.createWriteStream(dst));//复制文件权限stm.on('close',()=>{fs.chmodSync(dst,fs.statSync(...
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if(need) { mkdirs(path.dirname(toDir), callback); } else{ callback(null, true); } }, function(p, callback) { var reads =fs.createReadStream(file); var writes =fs.createWriteStream(path.join(path.dirname(toDir), path.basename(file))); ...
alert : fs.readFileSync(__dirname +'/alert.html','utf8') };module.exports=function(main, title, options) {if(! options) { options = {}; }vardata = {"main-body": main,"title": title,'messages':''}; ['error','info'].forEach(function(messageType) {if(options[messageType]) ...
USE${databaseName}`);// 创建目标数据库用户表awaitconnection.query(`CREATE TABLE IF NOT EXISTS ...