“链栈”实际代码实现【物联网1132-11】

#include<iostream.h>         

template<class T>        
struct STU 
{
	T data;
	STU<T> * next;
};

template<class T>        
class LinkStack  
{  
public:  
	 LinkStack(){top=NULL;}   
	 ~LinkStack(); 
	 void Push(T x);
	 T Pop();
	 T GetTop(){if(top!=NULL)return top->data;};
	 int Empty(){top==NULL?
return 1:return 0;};
private:  
	 STU<T> * top;
};  

template<class T>        
class LinkStack<T>::Push(T x)
{
	s=new STU;
	s->data=x;
	s->next=top;
	top=s;
}

template<class T>        
class LinkStack<T>::Pop()
{
	STU<T> *p;
	T x;
	if(top=NULL)throw"Wrong";
	x=top->data;
	p=top;
	top=top->next;
	delete p;
	return x;
}

int main()  
{  
    LinkStack<int>s1;  
    int m;  
    do{  
    cout<<"-------------------------"<<endl;  
    cout<<"输入1開始入栈"<<endl;  
    cout<<"输入2開始弹栈"<<endl;  
    cout<<"输入3開始读取栈顶"<<endl;  
    cout<<"输入4開始推断是否空"<<endl;  
    cin>>m;  
    switch(m)  
    {  
        case 1:  
            cout<<"请输入入栈的元素值"<<endl;  
            cin>>a;  
            s1.Push(a);  
            break;  
        case 2:   
            cout<<"此操作为出栈"<<endl;  
            s1.Pop();  
            break;  
        case 3:  
            int v;  
            cout<<"此操作为读取栈顶"<<endl;           
            s1.GetTop();  
            break;  
        case 4:   
            cout<<"此操作为推断栈为空"<<endl;             
            s1.Empty();  
            break;  
    }  
    }while(1);  
    return 0;  
}