在信息数字化的今天,随着电子政务、电子办公的推行普及,大量电子文件承担起了信息沟通、传递、保存等媒介功能,电子文件逐渐成为人类社会记录、传递和储存信息的重要工具。电子文件是采用“0”“1”二进制数字编码形式记录,存储于磁带、磁盘、光盘等载体上,由计算机 Today, with the digitalization of information, with the popularization of e-government and electronic office, a large number of electronic documents have taken on media functions such as information communication, transmission and preservation. Electronic documents have gradually become an important tool for human society to record, transmit and store information. Electronic files are recorded in the form of binary numbers of “0 ” “1 ” and stored on a carrier such as a magnetic tape, a magnetic disc, a compact disc, etc.,