var?fs=require('fs');
fs.readFile("tupian.gif",function?(err,origin_buffer)?{
????console.log(Buffer.isBuffer(origin_buffer))

????fs.writeFile("tupian_buffer.gif",origin_buffer,function?(err)?{
????????if(err)console.log(err)

????})
???var??base64Image=origin_buffer.toString("base64")

????console.log(base64Image)

????var?decodedImage=new?Buffer(base64Image,'base64')

????console.log(Buffer.compare(origin_buffer,decodedImage))

????fs.writeFile("tupian_buffers.gif",decodedImage,function?(err)?{
????????if(err)console.log(err)

????})
})