함수의 Default 매개변수

#include <iostream>
using namespace std;

void Print(int x = 10, int y = 20, int z = 30)
{
	cout << x << " " << y << " " << z << endl;
}
void main()
{
	Print(4, 5, 6);
	Print(4, 5);
	Print(4);
	Print();
}