The most basic code interpretation of C language

# include <stdio.h>

int main(viod)
{
	printf("hahaha!\n");

	return 0;
}

•  #include <stdio.h> Is essential , it “ contain ” 了 C Language standard input / Output information about the Library .
• The executable code of the program is main Function , This function represents “ Lord ” Program .main The first line of code in the function is used to display the expected information .
• printf The function comes from standard input / Output library , It can produce perfect formatted output .
• Code \n tell printf After the function executes the message display, it needs to wrap lines .
• return 0; Indicates that the value will be returned to the operating system when the program terminates 0.