By international analysis , the author gives a concept of data message - a flexible and open concept , summarizes four features showing the notable difference between the data message evidence and traditional evidence , which are high - technicality , invisibility , easy - destructibility and complexity 作者采用国际通行的解释给出了数据电文的概念- - - -一个非常有弹性、开放性的概念。总结了数据电文与传统文书资料截然不同的四个特征:高科技性、无形性、易破坏性、复合性。