c_cpp C中的功能

Posted 2021-05-14

#include <cs50.h>
#include <stdio.h>

int square(int n);  \\declare this function before "main"

int main(void)
{
	int x=get_int("x: ");
	printf("%i\n", square(x));
}

int square(int n)   \\add this function after "main"
{
	return n*n;
}