node.js文件的复制、创建文件夹等相关操作

fs.mkdirSync(yourfileDirPath);

fs.mkdir(yourfileDirPath);

fs.existsSync(dirpath);

fs.exists(dirpath);

function mkdir(dirpath,dirname) {
  //判断第二个参数可以不传入
  //判断第二个参数是否正常，避免调用时传入错误参数 
  if (dirname !== path.dirname(dirpath)) {
   mkdir(dirpath);
   return;
  }
  if (fs.existsSync(dirname)) {
   fs.mkdirSync(dirpath)
  } else {
   mkdir(dirname, path.dirname(dirname));
   fs.mkdirSync(dirpath);
  }
}