Perl 的未来-Pugs_Audrey Tang.pdf Perl 的未来-Pugs_Audrey Tang.pdf

These are the sample files for use with the Alpaca book (Learning Perl Objects, References & Modules by Randal L. Schwartz with Tom Phoenix, available from O'Reilly and Associates.) These files may be distributed under the same licensing terms as Perl itself. Enjoy! -- Randal and Tom alpaca sample files version 1.0 28 July 2003.

Over a decade ago (nearly eternity in Internet Time), Randal Schwartz wrote the first edition of Learning Perl. In the intervening years, Perl itself has grown substantially from a "cool" scripting language used primarily by Unix system administrators to a robust object-oriented programming (OOP) language that runs on practically every computing platform known to mankind. Throughout its four editions, Learning Perl remained the same size (about 300 pages) and continued to cover much of the same material to remain compact and accessible to the beginning programmer. But there is much more to learn about Perl now than when that first book was written. Randal called the first edition of this book Learning Perl Objects, References, and Modules, and now it's Intermediate Perl, but we like to think of it as just Learning More Perl. [*] This is the book that picks up where Learning Perl leaves off. We show you how to use Perl to write larger programs. [*] Don't ask why it isn't called that. We must have had 300 emails on the subject. Okay, ask, since we know you're going to anyway. You never really stop learning Perl, so Learning More Perl doesn't really tell you much about the book. Our editor chose the name, which tells you what to expect. As in Learning Perl, we designed each chapter to be small enough to read in just an hour or so. Each chapter ends with a series of exercises to help you practice what you've just learned, and the answers are in the appendix for your reference. And like Learning Perl, we've developed the material in this book for a teaching environment and used it in that setting, including for our own use at Stonehenge Consulting Services, as we conduct on-site and open-enrollment trainings. You don't have to be a Unix guru, or even a Unix user, to benefit from this book. Unless otherwise noted, everything in this book applies equally well to Windows ActivePerl from ActiveState and all other modern implementations of Perl. To us

mastering-perl-scripts.zip mastering-perl-scripts.zip

In this preface, I’ll tell you about the history of Minimal Perl and the origins of this book. THE HISTORY OF MINIMAL PERL The seeds of this book were sown many years ago, when I was building up my knowl- edge of Perl, the greatest programming language I’d ever encountered (before or since). While reading a variety of books on the subject, I was surprised that the authors felt obliged to delve into so many of the different but equivalent choices for expressing every basic operation in the language, as well as each of the syntactic variations for expressing any one of those choices. As an example, I’ve shown here some of the available choices for expressing in Perl the simple idea that B should be executed only if A is True (with those letters repre- senting arbitrary program elements). Both forward and backward variations for expressing the dependency are included:1 Although some are inclined to present symptoms like these of Perl’s complexity and redundancy as evidence of its “richness,” “versatility,” or “expressiveness,” many Perl novices would surely have a different reaction—that Perl is needlessly complex and too hard to learn. Minimal Perl was created to address these obstacles presented by Perl’s redundancy and complexity. By emphasizing Perl’s grep, sed, and awk-like features, and relying Forward Backward A and B; B if A; A && B; B if A; A and do { B }; do { B } if A; A && do { B }; do { B } if A; if (A) { B }; B if A; unless (!A) { B }; B unless !A; 1Before you despair, I should point out that Minimal Perl uses only 2 of these variations—which is all anybody needs! xx on concepts such as inputs, filters, and arguments, it allows Unix1 users to directly apply their existing knowledge to the task of learning Perl. So rather than being frustrated with Perl’s complexities and disappointed with its steep learning curve, they quickly and painlessly acquire the ability to write useful programs that can solve a wide variety of problems. My first publ

DBI是Perl数据库编程的主要接口。它与数据库产品无关，且为几乎所有的数据库产品提供了一致的子例程集。DBI将实际的数据库驱动程序与API分离，这样DBI程序可以处理任何数据库，甚至可以同时处理不同厂商的多个数据库。 对新手而言，本书解释了DBI的体系结构和如何编写基于DBI的程序；对专家而言，本书阐述了DBI的技术内幕和每个DBD的特性。 作品目录编辑 一, 简介 　　二, 非DBI数据库基础 　　三, SQL和关系型数据库 　　四, DBI编程 　　五, 数据库操作 　　六, 高级DBI 　　七, ODBC和DBI [1]

Table of Content Table of Content.........................................................................................................................i Copyright....................................................................................................................................v

Perl Predefined Variables.pdf Perl Predefined Variables.pdf

Packageindex Gtk.......................................................................................................................................................................................3 Gtk::AccelGroup.................................................................................................................................................................6 Gtk::AccelLabel..................................................................................................................................................................6 Gtk::Accelerator..................................................................................................................................................................7 Gtk::Adjustment..................................................................................................................................................................7 Gtk::Alignment...................................................................................................................................................................8 Gtk::Arrow..........................................................................................................................................................................8 Gtk::AspectFrame...............................................................................................................................................................8 Gtk::Bin..............................................................................................................................................................................9 Gtk::Box..............................................................................................................................................................................9 Gtk::BoxChild...................................................................................................................................................................1

This is version 2 of the perl reference card. (cl) 2008 Michael Goerz . http://www.physik.fu-berlin.de/~goerz/ Information taken liberally from the perl documentation and various other sources. You may freely distribute this document. 1 Variable Types 1.1 Scalars and Stri