说明：  Perl是一门以处理文本和文件见长的语言。它是一门易上手，开发快速的工具。相对于其它的脚本语言，有不可比拟的优势。本书为Perl入门的比较好的书籍
(Perl is a language known to handle text and file. It is an approachable, to develop a quick tool. Relative to other scripting language, has incomparable advantages. Good books for book entry for Perl)