perl multidimensional hash

Perl is generally considered to be the abbreviation for practical extraction and report Language, a language evolved from C and sed, awk, Unix shell, and other languages. It was originally invented and implemented by the linguist Larry Wall. Perl is

1.Perl Array (1): 1 Initialize the array @array = ("Stringa", "StringB", "STRINGC");(2) using negative index loop to retrieve print $array [-1]; #输出索引为 (-1 + 3)% 3 = 2 STRINGC3 Dynamic growth $array [4] = "STRINGD"; #虽然 $array [3] has not yet been

[File handle] $| If Non-zero, force clear buffer after write or print operation on the currently selected file$% the current page number of the currently selected file handle$= the current page length of the currently selected file handle$-the

The translation respects the original and maximizes the original content in its own way. For more information, please visit www.from0701.com. Two chapters are updated weekly.Welcome to the next stage of Perl learning. The reason you're here may be

Special variable of regular expression 1, $n: The nth substring containing the last pattern match2, $&: Previous successful pattern matching string3, $ ': previous match successful substring before4, $ ': After the substring of the previous match

Special symbols for Perl @ Array$x {} x preceded by a dollar sign ($) followed by a curly brace ({}), it is a hash element% to reference the entire hash, using the percent sign (") as the prefix. The hash used in the previous pages is

Why use references? In Perl4, the Value field in a hash table can only be scalar, not a list, which is inconvenient for some situations, such as the following data:Chicago, USAFrankfurt, GermanyBerlin, GermanyWashington, USAHelsinki, FinlandNew

Reference/pointers in the 12th chapter PERL5by FlamephoenixI. INTRODUCTION of citationIi. use of referencesThird, use the backslash (\) operatorIv. References and ArraysV. Multidimensional arraysVi. references to sub-programsSub-Program templatesVii.

PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and Microsoft's ASP quite a bit similar, is a server-side implementation of

Problem What is PHP file? which software can be used to open Workaround PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and