读指定文件夹(public)下的文件和目录

 const path=require('path');
const fs = require('fs');
  var arr=[];
  function readF(p){
  console.log('p',p);
  var ret = fs.readdirSync(p,{withFileTypes:true}); //数组
  for (var f of ret) {
    var filep=path.join(p,f.name)
    if(fs.statSync(filep).isDirectory()){  //是文件夹返回true
      readF(filep); //递归 readF()
    }
    else arr.push(f);
  }
}