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Perl by Example, Fourth Edition
book

Perl by Example, Fourth Edition

by Ellie Quigley
November 2007
Intermediate to advanced content levelIntermediate to advanced
1008 pages
20h 15m
English
Pearson
Content preview from Perl by Example, Fourth Edition

Chapter 7. If Only, Unconditionally, Forever

If Only, Unconditionally, Forever

Control Structures, Blocks, and Compound Statements

People plan their lives by making decisions, and so do programs. Figure 7.1 is a flow chart. A flow chart is defined as a pictorial representaion of how to plan the stages of a program. It helps you to visualize what decisions need to be made to accomplish a task. According to computer science books, a good language allows you to control the flow of your program in three ways:

  • Execute a sequence of statements.

  • Based on the results of a test, branch to an alternative sequence of statements.

  • Repeat a sequence of statements until some condition is met.

Figure 7.1. A ...

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Publisher Resources

ISBN: 9780132381826Purchase book