There are several forms of functions in C language.

Xiaobian to share with you the c language function in the form of several, I believe most people do not know how, so share this article for your reference, I hope you read this article after a great harvest, let us go to understand it!

C language provides us with functions, C language has 15 header files called standard libraries, these libraries provide a wealth of functions for us to call directly.

2. Self-defined functions. You can define a function in a.c file and call it.

examples

We all see this structure in C.

Example:

int main(){function body;return 0;}

This main function is the main function of C, and C only executes this main function. The main function can call other functions, but it itself cannot call any function. We can define custom functions above or inside the main function, and then call custom functions in the main area of the main function.

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