Programming library:
Library program keeps a collection of pre-built source code, subroutines, classes and appreciate what can be used at any time by the program and users.
global variables:
global variables can be used throughout the programming code, which is perfect for the program can use the same variable through code.
via parameters:
through parameters for allows the variable values will be passed through the program for the procedure.
module:
module is about how the system has different tasks and are grouped together to accomplish common tasks. each group has its own task to perform.
Module module has been divided into different groups to perform some task after the other one so it is a system, religion liªn.
local variables:
can only be used in these areas has been put in.
So, for example, an operation can only be done in that area and not another area of the code.
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