也就是在浏览网页或看Email时出现的不能辨认的字符。以前也有许多的文章介绍过“

乱码”，不过他们的文章只是讲怎样辨别和怎样用工具解码，并没有详细介绍各种编码

的算法的实现，本文将对互联网上最常用的几种编码的编码和解码算法作以详细的阐述

。希望对想了解“乱码”算法或想在自己程序中实现这些功能朋友们有一些参考价值。

本文的源程序用C语言写成，形式为函数，可直接使用。-That is, in browsing the web or Email to see when the unrecognizable characters. There are many articles previously introduced " garbled,"　but they only talk about how to identify the article and how to use tools for decoding, there is no detailed descr iption of the realization of various coding algorithms, this paper will be the most commonly used on the Internet of several of the encoding encoding and decoding algorithms for a detailed elaboration. Want to want to know, " garbled"　algorithm or want in their own programs to achieve these functions have some reference value my friends. With the C language source code of this article written in the form of a function can be used directly.