Myarr的实现

#include
#include 
using namespace std;

template //使用模板函数
class myarr
{
public:
	myarr(int n)//有参构造
	{
		this->C = n;
		this->size = 0;
		this->p = new T[C];
	}
	myarr(const myarr& other)//复制构造
	{
		this->C = other.C;
		this->size = other.size;
		this->p = new T[other.C];//防止重复释放空间
		for (int i = 0; i < size; i++)
			p[i] = other[i];
	}
	~myarr()
	{
		if (this->p != NULL)//判断P是否为空，然后delete
		{
			delete[]this->p;
			this->p = NULL;//防止p变成野指针
		}
	}
	void push_back(const T& num)//将数据存入myarr中
	{
		if (this->C == this->size)//如果超过容量就return
			return;
		this->p[this->size] = num;
		this->size++;
	}
	void pop_back()//尾删法，使size减一
	{
		if (this->size == 0)
			return;
		this->size--;
	}
	myarr& operator=(const myarr& other)//重载等号，要深复制，方式p重复释放空间
	{
		if (this->p != NULL)
		{
			delete[]this->p;
		}
		this->C = other.C;
		this->size = other.size;
		this->p = new T[other.C];
		for (int i = 0; i < size; i++)
			p[i] = other[i];
		return *this;
	}
	T& operator[](int index)//重载[]
	{
		return this->p[index];
	}
	int getC()//获取容量
	{
		return this->C;
	}
	int getsize()//获取数组大小
	{
		return this->size;
	}
private:
	T* p;
	int size;
	int C;
};
class base//用base类进行测试myarr
{
public:
	base() :name("null"), age(0) {

	}
	base(string n, int a)
	{
		this->age = a;
		this->name = n;
	}
	void show()const
	{
		cout << "名字： " << name << " 年龄： " << age;
	}
	~base() {}
private:
	string name;
	int age;
};
void myprintf(  myarr&m)//用于打印base类的数组
{
	for (int i = 0; i < m.getsize(); i++)
	{
		m[i].show();
		cout << endl;
	}
	cout <<"myarr的容量"<< m.getC() << endl;
	cout <<"myarr的大小"<< m.getsize() << endl;
}
void test()//测试案例
{
	base b1("zhangshan", 100);
	myarra(5);
	for(int i=0;i<5;i++)
	a.push_back(b1);
	myprintf(a);
cout<

代码运行截图