Perl語言入門

內(nèi)容概要

《Perl語言入門，第四版》與其他“駱駝叢書”一樣，引領(lǐng)了許多Perl程序員從入門走向精通。本書出自三個(gè)Perl社區(qū)的卓越成員之手——他們擁有多年從事Perl培訓(xùn)的豐富經(jīng)驗(yàn)，同時(shí)本書針對最新的Perl語言入門5.8版本做了相應(yīng)的修訂。    Perl是為高效工作而設(shè)計(jì)的。開始時(shí)，它只是Unix系統(tǒng)管理員快速完成一些簡單任務(wù)的工具，漸漸地它發(fā)展成為一種跨平臺的、功能強(qiáng)大的編程語言，被頻繁地應(yīng)用于網(wǎng)站開發(fā)、數(shù)據(jù)庫處理、XML處理和系統(tǒng)管理等等。同時(shí)，它作為快速開發(fā)工具在日常工作中仍被廣泛使用。也許，你是偶然地進(jìn)入Perl程序開發(fā)領(lǐng)域，但我們相信Perl的簡潔特性和強(qiáng)大功能使將使你愛不釋手。    基于多年P(guān)erl咨詢的成功經(jīng)驗(yàn)，作者重新修訂了此書，不但保留了原書中詳盡的討論、豐富的實(shí)例和獨(dú)特的理解，而且讓本書更適合于初學(xué)者。

書籍目錄

Preface1.Introduction  Questions and Answers  What Does “Perl”Stand For  How Can I Get Perl  How Do I Make a Perl Program  A Whirlwind Tour of Perl  Exercises2.Scalar Data  Numbers  Strings  Perl’s Built-in Warnings  Scalar Variables  Output with print  The if Control Structure  Getting User Input  The chomp Operator  The while Control Structure  The undef Value  The defined Function  Exercises3.Lists and Arrays  Accessing Elements of an Array  Special Array Indices  List Literals  List Assignment  Interpolating Arrays into Strings  The foreach Control Structure  Scalar and List Context  in List Context  Exercises4.Subroutines  Defining a Subroutine  Invoking a Subroutine  Return Values  Arguments  Private Variables in Subroutines  Variable-Length Parameter Lists  Notes on Lexical(my)Variables  The use strict Pragma  The return Operator  Non-Scalar Return Values  Exercises5.Input and Output  Input from Standard Input  Input from the Diamond Operator  The Invocation Arguments  Output to Standard Output  Formatted Output with printf  Filehandles  Opening a filehandle  Fatal Errors with die  Using Filehandles  Reopening a Standard Filehandle  Exercises6.Hashes  What Is a Hash  Hash Element Access  Hash Functions  ……7.In the World of Regular Expressions8.Matching With Regular Expressions9.Processing Text with Regular Expressions10.More Control Structures11.File Tests12.Directory Operations13.Strings and Sorting14.Process Management15.Perl Modules16.Some Advanced Perl TechniquesA.Exercise AnswersB.Beyong the LliamaIndex

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