c++操作符new 与delete学习(2)

#include <iostream>

class taosheng
{
public:
static int jishuqi;//静态
int *p;
int length;
public:
taosheng()
{
std::cout << "taosheng被创建了" << std::endl;
}
~taosheng()
{
std::cout << "taosheng被了销毁" << std::endl;
}
static void * operator new(size_t size)
{
jishuqi += 1;
std::cout << "对象被创建了" << std::endl;
taosheng *ptemp = ::new taosheng;
return ptemp;
}
static void operator delete(void *p)
{
jishuqi -= 1;
std::cout << "对象被了销毁" << std::endl;
::delete p;
}
};

int taosheng::jishuqi = 0;

void main()
{
taosheng * p1 = new taosheng;
taosheng * p2 = new taosheng;
taosheng * p3 = new taosheng;

delete p1;
std::cout << taosheng::jishuqi << std::endl;
system("pause");
}