说明：  介绍perl语言的电子书。详细介绍了perl中的变量、操作符、指针、函数集等等内容。既可以作为新手入门的指引教材，也可以作为编程手册。
(introduced to the USA. Perl details of the variables, operator, pointer, the function sets, etc.. As a novice can start teaching guidelines, or as a programming manual.)