c15_03.cpp

这是编程之道C-C++中的源代码,很简练,可以用于相关教学和重新熟悉C-C++时使用

//重载运算符++,运算符重载函数作为类CCounter的成员函数
#include <iostream >
using namespace std;

class CCounter
{
public:
	CCounter():m_val(0){ }
	~CCounter(){}

	unsigned GetVal()const { return m_val; }  
	void SetVal(unsigned x) {m_val = x; }
	void Increment() { ++m_val; }
	void operator++ () { ++m_val; }  //重载运算符++
private:
	unsigned m_val;
};

int main()
{
	CCounter counter;
	cout << "counter的值是：" << counter.GetVal() << endl;
	counter.Increment();
	cout << "调用自增函数之后，";
	cout << "counter的值是：" << counter.GetVal() << endl;
	++counter;
	cout<< "使用自增运算符++之后，";
	cout << "counter的值是：" << counter.GetVal() << endl;

	return 0;
}