Titlebook: Beginning Perl Programming; From Novice to Profe William "Bo" Rothwell Book 2019 William "Bo" Rothwell of One Course Source, Inc. 2019 Perl

华而不实

Carl Magnus Olsson,Nancy L. RussoOperating systems use “wildcards” in order to make referring to filenames easier. The idea of regular expressions (or patterns) in Perl is very much like wildcards...at least conceptually. While wildcards are special characters that refer to filenames, regular expressions are special characters that refer to text within a string.

防止

IT Portfolio and Project Management,The . statement is useful for breaking up a scalar value based on a particular character (or characters). It will return what is split as a list (array) of scalar values. This list is normally assigned to an array:.........

平庸的人或物

厚颜

https://doi.org/10.1007/978-3-319-96187-3To create a function, use the . statement:....

远地点

https://doi.org/10.1007/978-3-319-96187-3Perl modules (sometimes called libraries) are files that contain reusable code. These libraries can either be created by you, built-in to Perl, or downloaded from the Internet.

Plaque

Banister

Origin of Perl,Perl was developed in 1987 by Larry Wall. It was created because the tools that were available to Mr. Wall at the time (sed, C, awk, and Bourne shell) didn’t provide the sort of functionality that he required.

Ventricle

Scalar Variables,A numeric literal is simply any kind of valid number. In Perl the following numeric types are supported:

宽大

Array Variables,Array variables are used to store lists (groups) of scalar data. The following describes important information about array variables:

BILIO