nodejs判断文件、文件夹是否存在及删除的方法

var fs= require("fs")

fs.exists("dirName", function(exists) {  console.log(exists ? "创建成功" : "创建失败");});

var fs = require('fs'); // 引入fs模块function deleteall(path) {  var files = [];  if(fs.existsSync(path)) {    files = fs.readdirSync(path);    files.forEach(function(file, index) {      var curPath = path + "/" + file;      if(fs.statSync(curPath).isDirectory()) { // recurse        deleteall(curPath);      } else { // delete file        fs.unlinkSync(curPath);      }    });    fs.rmdirSync(path);  }};

deleteall("./dir")//将文件夹传入即可