c++自定义数组类

// zidingyi.cpp: 定义控制台应用程序的入口点。

// zidingyi.cpp: 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include<iostream>
#include "my_array.h"
using namespace std;

int main()
{
	my_array array1(10);
	for (int i = 0; i < 10; i++)
	{
		array1.setData(i, i + 10);
	}
	cout << "------000000-" << endl;
	for (int i = 0; i < 10; i++)
	{
		cout << array1.getData(i) << "  ";
	}
	cout << endl;
	//用深拷贝
	my_array array2 = array1;
	for (int i = 0; i <array2.getlen(); i++)
	{
		cout << array2.getData(i) << "  ";
	}
	cout << endl;
	//用运算操作符
	my_array array3;
	array3 = array1;

	
    return 0;
}

#pragma once
#include<iostream>
using namespace std;
class my_array
{
public:
	my_array();
	my_array(int len);
	my_array(const my_array &another);
	~my_array();
	void setData(int index, int data);
	int getData(int index);
	int getlen();

	void operator=(const my_array &another);
private:
	int len;
	int *space;
};

#include "stdafx.h"
#include "my_array.h"


my_array::my_array()
{

	cout << "my_array  。。。。" << endl;
	this->len = 0;
	this->space = NULL;
	cout << "my_array  。。。。" << endl;
}
my_array::my_array(int len)
{

	if (len <= 0)
	{
		this->len = 0;
		return;
	}
	else {
		this->len = len;
		this->space = new int[this->len];
		cout << "my_array(int len) 。。。" << endl;
	}
}

my_array::my_array(const my_array &another)
{
	if (another.len >= 0)
	{
		this->len = another.len;
		this->space = new int[this->len];
		for (int i = 0; i < another.len; i++)
		{
			this->space[i] = another.space[i];
		}
		cout << "调用了拷贝构造函数" << endl;
	}
}
my_array::~my_array()
{
	if (this->space != NULL)
	{
		delete[]this->space;
		this->space = NULL;
		len = 0;
		cout << "调用了析构函数" << endl;
	}

}
void  my_array::setData(int index, int data)
{
	if (this->space != NULL)
	{
		this->space[index] = data;
	}
}
int  my_array::getData(int index)
{
	return this->space[index];
}
int  my_array::getlen()
{
	return this->len;
}

void my_array::operator=(const my_array &another)
{
	if (another.len >= 0)
	{
		this->len = another.len;
		this->space = new int[this->len];
		for (int i = 0; i < another.len; i++)
		{
			this->space[i] = another.space[i];
		}
		cout << "调用了my_array::operator=(const my_array &another)" << endl;
	}
}