How is the modularization of C language programs implemented?

#The modularization of C language programs is achieved by defining functions.

C language is composed of functions, and functions are the basic units of C language.

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Definition of function:

A function is a piece of code that can be reused to complete independently A function that can receive data passed by the user or not. Functions that receive user data must specify parameters when defining them. Functions that do not receive user data do not need to be specified. Based on this, functions can be divided into parameterized functions and parameterless functions.

The process of encapsulating a code segment into a function is called function definition.

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