将之前定义的栈类和队列类都实现成模板类

栈：

#include <iostream>

using namespace std;
template<typename T>
class zn
{
private:
    T *num;
    int top;
    int size;
public:
//有参构造函数
zn(int a):top(-1),size(a){
    num=new T[size];
}
//析构函数
~zn()
{
    delete []num;
    num=NULL;
}

//判空
bool myemp()
{
    if(top==-1)
    {
        return true;
    }
    return false;
}
//判满
bool myfull()
{
    if(top==size)
    {
        return true;
    }
    return false;
}
//入栈
int myinput()
{
   if(myfull())
   {
       cout<<"入栈失败"<<endl;
       return 0;
   }
   top+=1;
   cin>>num[top];
   cout<<"入栈成功"<<endl;
   return 1;
}
//出栈
int myoutput()
{
   if(myemp())
   {
       cout<<"出栈失败"<<endl;
       return 0;
   }
   top-=1;
   cout<<"出栈成功"<<endl;
   return 1;
}
//获取栈顶元素
int gettop()
{
    if(myemp())
    {
        cout<<"获取失败"<<endl;
        return 0;
    }
    cout<<"栈顶元素为："<<num[top]<<endl;
    return 1;
}
//清空栈
int myclear()
{
   if(myemp())
   {
       return 0;
   }
   this->top=-1;
   cout<<"清空成功"<<endl;
   return 1;
}
//求栈的大小
void mysize()
{
    cout<<"栈的大小为："<<top+1<<endl;
}
void show()
{
    for(int i=0;i<=(top);i++)
    {
        cout<<num[i]<<" ";
    }
    cout<<endl;
}

};
int main()
{
    zn<string> a1(5);
    a1.myinput();
    a1.myinput();
    a1.myinput();
    a1.myinput();
    a1.gettop();
    a1.myoutput();
    a1.show();
    a1.myclear();
    a1.gettop();
    a1.mysize();
    return 0;
}

队列

#include <iostream>

using namespace std;
template<typename T>
class dl
{
private:
    T *num;
    int tail=0;     //队尾
    int head=0;    //队头
public:
    //无参构造
    dl():num(new T[10]){}
    //拷贝构造
    dl(const dl &other):num(new int[10]),tail(other.tail),head(other.head)
    {
        int i=other.head;
        do
        {
            num[i]=other.num[i];
            i=(i+1)%10;
        }while(i!=other.tail);
    }
    //析构函数
    ~dl(){
        delete []num;
        num=NULL;
    }

    //入队
    void input()
    {
        if(myfull())
        {
            cout<<"队列满啦"<<endl;
        }else
        {
            cin>>num[tail];
            tail=(tail+1)%10;
        }
    }
    //出队
    void output()
    {
        if(myemp())
        {
            cout<<"队列无元素"<<endl;
        }else
        {
            cout<<num[head]<<"出队成功"<<endl;;
            head=(head+1)%10;
        }
    }
    //清空队列
    void clear()
    {
        head=tail;
        cout<<"清空成功"<<endl;
    }
    //判空
    bool myemp()
    {
        if(head==tail)
        {
            return true;
        }
        return false;
    }
    //判满
    bool myfull()
    {
        if((tail+1)%10==head)
        {
            return true;
        }
        return false;
    }
    //求队列的大小
    void mysize()
    {
        cout<<"队列大小为"<<(tail-head+10)%10<<endl;
    }
    void show()
    {
        cout<<"队列元素为：";
        int i=head;
        do
        {
            cout<<num[i]<<" ";
            i=(i+1)%10;
        }while(i!=tail);
        cout<<endl;
    }
};
int main()
{
    dl<double> s1;
    s1.input();
    s1.show();
    return 0;
}