PERL语言入门-第7版-(影印版)

preface1. Introduction Questions and Answers Is This the Right Book for You Why Are There So Many Footnotes What About the Exercises and Their Answers What Do Those Numbers Mean at the Start'of the Exercise What If I'm a Perl Course Instructor What Does "Perl" Stand For Why Did Larry Create Perl Why Didn't Larry Just Use Some Other Language Is Perl Easy or Hard How Did Perl Get to Be So Popular What's Happening with Perl Now What's Perl Really Good For What Is Perl Not Good For How Can I Get Perl What Is CPAN How Can I Get Support for Perl Are There Any Other Kinds of Support What If I Find a Bug in Perl How Do I Make a Perl Program A Simple Program What's Inside That Program How Do I Compile My Perl Program A Whirlwind Tour of Perl Exercises2. Scalar Data Numbers All Numbers Have the Same Format Internally Integer Literals Nondecimal Integer Literals Floating-Point Literals Numeric Operators Strings Single-Quoted String Literals Double-Quoted String Literals String Operators Automatic Conversion Between Numbers and Strings Perl's Built-In Warnings Interpreting Nondecimal Numerals Scalar Variables Choosing Good Variable Names Scalar Assignment Compound Assignment Operators Output with print Interpolation of Scalar Variables into Strings Creating Characters by Code Point Operator Precedence and Associativity Comparison Operators The if Control Structure Boolean Values 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 The qw Shortcut List Assignment The pop and push Operators The shift and unshift Operators The splice Operator Interpolating Arrays into Strings The foreach Control Structure Perrs Favorite Default: $…… 4. Subroutines5. Input and Output6. Hashes7. Regular Expressions8. Matching With Regular Expressions9. Processing Text With Regular Expressions10. More Control Structures11. Peri Modules12. File Tests13. Directory Operations14. Strings and Sorting15. Process Management16. Some Advanced Peri TechniquesA. Exercise AnswersB. Beyond the LlamaC. A Unicode PrimerD. Experimental FeaturesIndex