To create and declare variables in Pascal, the var keyword is used:

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It is customary to name objects with short names, the length of which usually does not exceed 8 characters.

Next, we will examine each syntactic element of the Pascal language in more detail.

Variable


The variables in this case have names x, y, and also a specific type.

Before using variables within a function or procedure, they must be declared outside thailand rcs data the program body (before the word begin), as well as after the definition of the function or procedure. If a variable is to be used in different parts of the program, it can be declared as global immediately after the program header.

Function and procedure
A procedure is a type of function whose main task is to perform certain actions without returning any values. The following commands are used to declare these structural elements:

Function name(parameters): return_type;

Procedure name(parameters);

Comments
Both single-line and multi-line comments are supported. In the latter case, the {* and *} symbols are used before and after the commented block, respectively. Individual lines are commented with curly braces ({ and }) at the beginning and end.

{* Comment

multiple lines *}

{ One line comment }

Register
Pascal does not differentiate between lowercase and uppercase letters. For example, both b and B will be treated as the same.

Statements
The structure of the Pascal language is actually a sequence of statements that perform certain tasks (declaring variables, assigning, reading and writing data, transferring flow control to other programs, etc.).