Abstract: Based on analysis of character encoding methods,and encoding and decoding principles,a strategy for searching keywords in digital documents was established.The application of the method was illustrated by a practical case.

Key words: digital data, character encoding, keyword enquiry, enquiry dictionary, encoding, decoding

摘要： 本文分析了字符的常用编码方法以及如何对各种不同编码方式进行转码和解码,提出了基于字符编码的关键字查询方法,并结合电子数据司法等鉴定工作中遇到的实际案例,描述如何通过该方法实现关键字的快速查询。

关键词: 电子数据, 字符编码, 关键字查询, 查询字典, 编码, 解码