class A
{
public:
	A(){}
	~A(){}
	
	int GetStaticNum();
};

int A::GetStaticNum()
{
	static int i = 0;//靜態區域性變數屬於該方法，與類的例項無關
	i++;
	return i;
}

int main()
{
	A a,b;
	int i1 = a.GetStaticNum();//i1=1
	int i2 = a.GetStaticNum();//i2=2
	int i3 = b.GetStaticNum();//i3=3

	return 0;
}

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