析构函数的练习使用

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<string>
using namespace std;

class Person
{
private:
	char* mname;
public:
	void PersonInit(char* name)
	{
		mname = new char(strlen(name) + 1);
		strcpy(mname, name);
	}
	void PersonPrint(void)
	{
		cout << "姓名为:" << mname << endl;
	}
	//构造函数:
	Person()
	{
		mname = NULL;
	}
	Person(char* name)
	{
		mname = new char[strlen(name) + 1];
		strcpy(mname, name);
	}
	//析构函数:
	~Person()
	{
		if (mname != NULL)
		{
			delete [] mname;
			mname = NULL;
			cout << "析构函数已调用完毕!" << endl;
		}
	}
};

int main()
{
	Person yangyu("yangyu");
	yangyu.PersonPrint();
	return 0;
}