#include <iostream>

int main3()
{

	//1��������     float
	//2��˫����		double
	//Ĭ�������  ���һ��С��������ʾ��6λ��Ч����

	float f1 = 3.14f;
	std::cout << "f1 = " << f1 << std::endl;

	double d1 = 3.14;
	std::cout << "d1 = " << d1 << std::endl;

	//ͳ�� float �� double ռ�õ��ڴ�ռ�
	std::cout << "floatռ�õ��ڴ�ռ䣺 " << sizeof(float) << std::endl;

	std::cout << "doubleռ�õ��ڴ�ռ䣺 " << sizeof(double) << std::endl;

	//��ѧ������
	float f2 = 3e2;   // 3*10^2
	std::cout << "f2 = " << f2 << std::endl;
	float f3 = 3e-2;   // 3*0.1^-2
	std::cout << "f3 = " << f3 << std::endl;


	system("pause");

	return 0;

}