Container容器（类模板内容）

头文件：

#include <cstddef>

#include <iostream>

using namespace std;

template<class T,size_t N=10>

class  Array{

T data[N];

size_t count;

public:

Array(){count = 0;}

void push_back(const T&t){

if(count<N )

data[count++]= t;

}

void pop_back(){

if(count>0)

--count;

}

T* begin(){return data;}

T* end(){return data+count;}

};

template<class T,template<class,size_t =10> class Seq>

class Container{

Seq<T> seq;//这里的Seq代表实例化的类  Array<float> arr;就是这样

public:

void append(const T& t){seq.push_back(t);}

T* begin(){return seq.begin();}

T* end(){  return seq.end();}

};

 

 

cpp文件：

 

 

 

#include "Container.h"

int main()

{

Container<int,Array> container;//用Array去实例化Seq，Seq如同形参

container.append(1);

container.append(2);

container.append(4);

int *p=container.begin();

while(p!=container.end())

cout<<*p++<<endl;

}