MyArray.hpp

#pragma once
#include<iostream>
#include<string>
using namespace std;
template<class T>class MyArray
{
public://构造explicit MyArray(int capacity) //防止隐式类型转换，防止MyArray arr =10{this->m_Capacity = capacity;this->m_Size = 0;this->pAddress = new T[this -> m_Capacity];}MyArray(const MyArray &array){this->m_Capacity = array.m_Capacity;this->m_Size = array.m_Size;this->pAddress = new T[this->m_Capacity];for (int i = 0; i < m_Size; i++){this->pAddress[i] = array[i];}}~MyArray(){if (this->pAddress != NULL){delete[]this->pAddress;this->pAddress = NULL;}}//赋值操作符重载 防止浅拷贝MyArray & operator = (MyArray & array){//先判断原始数据，有就清空if (this->pAddress != NULL){delete[]this->pAddress;this->pAddress = NULL;}this->m_Capacity = array.m_Capacity;this->m_Size = array.m_Size;this->pAddress = new T[this->m_Capacity];for (int i = 0; i < m_Size; i++){this->pAddress[i] = array[i];}}//[]重载/*MyArray arr(10)arr[0] = 100;*/T & operator [](int index){return this->pAddress[index];}//尾插法void push_Back(T val){this->pAddress[this->m_Size] = val;this->m_Size++;}//获取大小int getSize(){return m_Size;}//获取容量int getCapacity(){return m_Capacity;}private:T * pAddress;   //指向堆区指针int m_Capacity; //容量int m_Size;
};

test.cpp

#include"MyArray.hpp"
#include<string>
#include<iostream>
using namespace std;
//输出int 类型数组
void printIntArray(MyArray<int>&array)
{for (int i = 0; i < array.getSize(); i++){cout << array[i] << endl;}
}
class Person
{
public://默认构造Person(){}Person(string name, int age){this->m_Name = name;this->m_Age = age;}string m_Name;int m_Age;
};//输出Person类型的数组
void printPersonArray(MyArray<Person > &array)
{for (int i = 0; i < array.getSize(); i++){cout << "姓名：" << array[i].m_Name << "年龄：" << array[i].m_Age << endl;}
}int main()
{MyArray<int>arr(10);for (int i = 0; i < 10; i++){arr.push_Back(i + 100);}printIntArray(arr);Person p1("MT", 10);Person p2("呆贼", 12);Person p3("傻馍", 13);Person p4("劣人", 14);MyArray<Person>arr2(10);arr2.push_Back(p1);arr2.push_Back(p2);arr2.push_Back(p3);arr2.push_Back(p4);printPersonArray(arr2);system("pause");return 0;
}