上传文件是 前段与后端对文件生成的md5值不一样 怎么处理

js var reader = new FileReader(); var objFile = document.getElementById('file') reader.readAsBinaryString(objFile.files[0]); reader.onload = function(e) { var md5 = new Hashes.MD5().hex(reader.result) }

python file = request.FILES.get('file') m = hashlib.md5() for item in iter(partial(data.read, block_size), b''): print(item) m.update(item) str_md5 = m.hexdigest()