//MyArray.hpp:
#pragma once
#include<iostream>
using namespace std;
#include<string>
template<class T>
class MyArray
{
public:
	MyArray(int capacity)//构造函数
	{
		cout << "构造函数调用" << endl;
		this->m_capacity = capacity;
		this->m_size = 0;
		this->pAddress = new T[this->m_capacity];
	}
	~MyArray()//析构函数
	{
		cout << "析构函数调用" << endl;
		if (this->pAddress != NULL)
		{
			delete[] this->pAddress;
			this->pAddress = NULL;
			this->m_capacity=0;
			this->m_size = 0;
		}
	}
	MyArray(const MyArray& a1)
	{
		cout << "拷贝函数调用" << endl;
		if (this->pAddress != NULL)
		{
			delete[] this->pAddress;
			this->pAddress = NULL;
		}
		this->m_capacity = a1.m_capacity;
		this->m_size = a1.m_size;
		this->pAddress = new T[a1.m_capacity];
		for (int i = 0; i < a1.m_size; i++)//深度拷贝
		{
			this->pAddress[i] = a1.pAddress[i];
		}
	}
	void Push_Back(const T& val)//尾插
	{
		if (this->m_capacity == this->m_size)
		{
			cout << "数组已满" << endl;
			return;
		}
		this->pAddress[this->m_size] = val;
		this->m_size++;
	}
	void Pop_Back()//尾删
	{
		if (this->m_size == 0)
		{
			cout << "数组为空" << endl;
			return;
		}
		this->m_size--;
	}
	int GetSize()
	{
		return this->m_size;
	}
	int GetCapacity()
	{
		return this->m_capacity;
	}
	T& operator[](int p)//
	{
		if (this->m_size <= p)
		{
			cout << "该位置无数据" << endl;
		}
			return this->pAddress[p];
	}
	MyArray& operator=(const MyArray& a1)//重载=
	{
		cout << "operator=调用" << endl;
		if (this->pAddress != NULL)
		{
			delete[] this->pAddress;
			this->pAddress = NULL;
		}
		this->m_capacity = a1.m_capacity;
		this->m_size = a1.m_size;
		this->pAddress = new T[a1.m_capacity];
		for (int i = 0; i < a1.m_size; i++)
		{
			this->pAddress[i] = a1.pAddress[i];
		}
		return *this;
	}
private:
	T* pAddress;
	int m_capacity;
	int m_size;
};
//mian.cpp:
#include"MyArray.hpp"
void show(MyArray<int> & arr)
{
	for (int i = 0; i < arr.GetSize(); i++)
	{
		cout << arr[i] << " ";
	}
	cout << endl;
}
class Person
{
public:
	Person() {};
	Person(string name, int age)
	{
		this->m_name = name;
		this->m_age = age;
	}
	string m_name;
	int m_age;
};
void showPerson(MyArray<Person>& arr)
{
	for (int i = 0; i < arr.GetSize(); i++)
	{
		cout << arr[i].m_name << "  " << arr[i].m_age << endl;;
	}
}
void test()
{
	Person p1("张三", 20);
	Person p2("李四", 20);
	Person p3("王五", 20);
	Person p4("赵六", 20);
	Person p5("Tom", 20);
	MyArray<Person> arr1(5);
	arr1.Push_Back(p1);
	arr1.Push_Back(p2);
	arr1.Push_Back(p3);
	arr1.Push_Back(p4);
	arr1.Push_Back(p5);
	showPerson(arr1);
	cout << "数组容量:" << arr1.GetCapacity() << endl;
	cout << "数组有效量:" << arr1.GetSize() << endl;
	arr1.Pop_Back();
	cout << "数组有效量:" << arr1.GetSize() << endl;

}
int main()
{
	test();
	return 0;
}