构造函数和析构函数的私有化

//例程：构造函数和析构函数的私有化
#include <iostream>
#include <cstdio>
#include <cstring>
#include <cmath>

using namespace std;

class Human {
public:
	void test() {
		printf("Human--------\n");
	}
	static Human* create(){
		return new Human;
	}
	void destory(){
		delete this;
	}
private:
	Human(){
		printf("constructor is called!\n");
	}
	~Human(){
		printf("destrcutor is called!\n");
	}
};

int main(int argc, char* argv[]) {
	Human *hp = Human::create();  //构造函数被私有化，只能用公有函数create在类内分配内存

	hp->destory();
	//delete hp;      //析构函数被私有化，无法用delete函数调用，只能用拥有函数destory在类内释放内存
	return 0;
}