這個fs.readdir路徑要加上__dirname 找到絕對路徑 否則會報錯

{ Error: ENOENT: no such file or directory, scandir ‘/Users/**/Desktop/demo/test/test/‘
  errno: -2,
  code: ‘ENOENT‘,
  syscall: ‘scandir‘,
  path: ‘/Users/**/Desktop/demo/test/test/‘ }

fs.readdir(__dirname+"/public/",function(err, files){
    if (err) {
        return
 
 console.error(err);
    }
    files.forEach( function (file){
        console.log( file );
    });
 })

Node 的fs模塊