#include <iostream>

//�����Ķ��巽ʽ
//1��#define  �곣��
//2��const ���εı���

//1��#define  �곣��
#define Day 7


int main1()
{
	
	std::cout << "Hello World" << std::endl;

	                                                                             //�����������﷨����������  ������  =  ������ʼֵ
	int a = 10;

	std::cout << "a = " << a << std::endl;
	
	
	//Day = 14;                                                                  //����Day�dz�����һ���޸ľͻᱨ��
	std::cout << "һ���ܹ��У�" << Day << "��" << std::endl;
	
	//2��const���εı���
	const int month = 12;
	//month = 24;                                                                //����const���εı���Ҳ��Ϊ����
	
	std::cout << "һ���ܹ��У�" << month << "���·�" << std::endl;

	system("pause");

	return 0;
}