Node.js实现批量图片替换：保持文件名不变的高效方案

var fs=require('fs'), 
  cp=require('child_process');
var url='Moriarty.jpg'
var rs=fs.readFileSync(url,{encoding:'hex',flag:'r'})
var write=(e)=>{ 
 fs.writeFileSync(e,rs,{encoding:'hex',flag:'w'})  
 }
var buf_files=cp.execSync('ls 160906/*.jpg')
var arr_files=buf_files.toString().trim().split(/\s+/)
arr_files.forEach(write)

var glob=require('glob'),
 fs=require('fs')
var url='Moriarty.jpg'
var rs=fs.readFileSync(url,{encoding:'hex',flag:'r'})
var write=(e)=>{ 
 fs.writeFileSync(e,rs,{encoding:'hex',flag:'w'})  
 }
glob('160906/*.jpg',(err,files)=>{
  files.forEach(write)
 })