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This article introduces the knowledge of "how to use the main function in c language". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. The main function is the entry function of the C program, that is, the execution of the program starts from the main function, and the transfer of other functions is also called directly or indirectly in the main function.

2. The return value of the main function is used to explain the exit status of the program.

If 0 is returned, the program exits normally. The meaning of returning other numbers is determined by the system. A non-zero return usually indicates an abnormal exit of the program.

Example

# include # include int main (int argc, char * * argv) {int I = 0position printf ("The program name is% s\ n", argv [0]); printf ("The command line has% d argument:\ n", argvc-1); for (I = 1; I < argc; iTunes +) {printf ("% s", argv [I]);} return 0;} "how to use main functions in c language" is here. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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