Myarray.h文件
#pragma once#include<iostream>using namespace std;class MyArray
{
public:MyArray();//默认构造 默认100容量MyArray(int capacity);MyArray(const MyArray& array);~MyArray();//尾插法void Push_Back(int val);//根据索引获取值int getData(int index);//根据索引设置值void setData(int index, int val);//获取数组大小int getSize();//获取数组容量int getCapacity();private:int *pAddress;//指向真正存储数据的指针int m_Size;//数组的大小int m_Capacity;//数组容量
};
Myarray.cpp
#include"Myarray.h"//默认构造
MyArray::MyArray()
{this->m_Capacity = 100;this->m_Size = 0;this->pAddress = new int[this->m_Capacity];
}
//有参构造 参数 数组容量
MyArray::MyArray(int capacity)
{cout << "有参构造调用" << endl;this->m_Capacity = capacity;this->m_Size = 0;this->pAddress = new int[this->m_Capacity];
}//拷贝构造
MyArray::MyArray(const MyArray & array)
{cout << "拷贝构造的调用" << endl;this->pAddress = new int[array.m_Capacity];this->m_Size = array.m_Size;this->m_Capacity = array.m_Capacity;for (int i = 0; i < array.m_Size; i++){this->pAddress[i] = array.pAddress[i];}}//析构
MyArray::~MyArray()
{if (this->pAddress != NULL){cout << "析构函数的调用" << endl;delete[]this->pAddress;this->pAddress = NULL;}
}void MyArray::Push_Back(int val)
{//判断越界？用户自己处理this->pAddress[this->m_Size] = val;this->m_Size++;
}int MyArray::getData(int index)
{return this->pAddress[index];
}void MyArray::setData(int index, int val)
{this->pAddress[index] = val;
}int MyArray::getCapacity()
{return this->m_Capacity;
}
int MyArray::getSize()
{return this->m_Size;
}
test.cpp
#include"Myarray.h"void test01()
{//堆区创建数组MyArray *array = new MyArray(30);MyArray *array2=new MyArray(*array);//new方式指定拷贝构造MyArray array3 = *array2; //构造函数返回的本体//MyArray *array4 = array; //这声明一个指针和array执行的地址相同，所以不会调用拷贝构造delete array;//尾插法的测试for (int i = 0; i < 10; i++){array2->Push_Back(i);}//获取数据的测试for (int i = 0; i < 10; i++){cout << array2->getData(i) << endl;}//设置值的测试array2->setData(0, 1000);cout << array2->getData(0) << endl;//获取数组大小cout << "array2的数组大小" << array2->getSize() << endl;//获取数组容量cout << "array2的数组容量" << array2->getCapacity() << endl;}int main()
{test01();system("pause");return 0;
}
)
