Shulou(Shulou.com)06/02 Report--

This article will explain in detail the example analysis of Perl control flow for you. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Perl control flow (if condition, while,for loop...)

1. Sentence block:

The part between {} is the BLOCK statement block.

two。 Conditional statement:

If (expression) BLOCK; if (expression) BLOCK1 elseBLOCK2; if (expression1) BLOCK1; elsif (expression2) BLOCK2; else BLOCK3; # inverted if statement expressionif (test_expression)

The relational operators involved in the Perl control flow:

Numeric value comparison: =, >, =

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