perl arrow operator

Perl object-oriented first let's take a look at the three basic definitions of Perl Object-Oriented Programming: 1. an "object" refers to a simple reference that "there is a way to know which class it belongs. (An object is a reference variable) 2.

Source:Http://www.cnblogs.com/itech/archive/2012/08/21/2649580.htmlPerl Object Oriented first let's look at three basic definitions of Perl object-oriented Programming: 1. An "object" refers to a simple reference that "has a way of knowing which

First, let's look at three basic definitions of Perl object-oriented programming: 1. An "object" refers to a simple reference that "there is a way to know which class it belongs to". (object is reference variable)2. A "class" refers to a simple

Perl Learning 5 Hash, perllearninghash [This article is original. Do not reprint it without permission] Hash is a data structure. It is similar to an array in that it can accommodate any number of values and can be used as needed. The difference

From; http://blog.csdn.net/carolzhang8406/article/details/6117593 From Wikipedia http://zh.wikipedia.org/wiki/Vim. Vim is a text editor developed from VI. Code Completion, compilation, error jump, and other convenient programming functions are

$ Refers to one, @ refers to a bunch, and % refers to hash --------------------------------------------------- X string repetition operator. eg: "Fred" x 3 = "fredfred" ------------------------------------------------------ Array: $ # Index

The 20 good habits to be used in Unix are: 1) create a directory tree in a single command. 2) change the path. Do not move the archive. 3) combine commands with control operators. 4) exercise caution when referencing variables. 5) Use escape

Windows Server, Windows Advanced Server, and Windows Professional default installations all have IIS, or you can install IIS after Windows 2000 is installed. IIS is a Microsoft production of a WEB, FTP, SMTP Server, a set of integrated software,

From IBM developerworks by Martin Streicher (martin.streicher@linux-mag.com ), September 06, 2007 Mixing PHP with other web page tags at will make the program logic, HTML, Cascading Style Sheet (CSS), and JavaScript messy, making maintenance a

Vim is a powerful editor on the Linux platform. It is an enhanced version of the VI editor in the early years. This gvim is for Windows and has a standard GUI for Windows. Therefore, it is called G (graphical) vim. We can understand gvim as a