c15_01.cpp

it can help you use C++ program we

//类Counter的简单定义及实现
#include <iostream >
using namespace std;

class CCounter
{
public:
	CCounter():m_val(0){ }		//缺省构造函数，成员变量m_val初始化为0
	~CCounter(){}				//什么事都不干的析构函数

	//下面两个函数是私有变量m_val的存取访问函数
	unsigned GetVal()const { return m_val; }  
	void SetVal(unsigned x) {m_val = x; }

private:
	unsigned m_val;
};

int main()
{
	CCounter counter;
	cout << "counter的值是：" << counter.GetVal() << endl;

	return 0;
}