C#结构实现堆栈

Question

system.collection.stack
system.collection.genericclass Program    {
        static void Main(string[] args)
        {
            StackX stack = new StackX(10);
            stack.Push(5);
            stack.Push(1);
            stack.Push(3);
            stack.Push(6);
            stack.Push(9);
            Console.WriteLine("现在的元素是：");
            stack.Display();
            stack.Pop();
            stack.Pop(2);
            Console.WriteLine("操作之后的元素是：");
            stack.Display();
          
           Console.ReadLine();
        }        static void StartMethod()
        {
            Console.WriteLine("start.....");
            for (int i = 10; i < 20; i++)
            {
                Thread.Sleep(100);
                //Console.WriteLine(i.ToString());
            }
            Console.WriteLine("end.....");
        }
    }using System;
using System.Collections.Generic;
using System.Text;namespace ConApp1
{
    class StackX
    {
        private int [] stackx;
        private int maxSize;
        private int top;              public StackX(int max)
        {
            stackx = new int[max];
            maxSize = max;
            top = 0;
        }        public int Len
        {
            get
            {
                return stackx.Length;
            }
        }        public int MaxSize
        {
            get
            {
                return maxSize;
            }
           
        }        public bool IsEmpty()
        {
            return (top == 0);
        }        public bool IsFull()
        {
            return (top == maxSize);
        }        public bool Push(int intdata)
        {
            if (top == maxSize)
            {
                Console.WriteLine("The Stack is Full.........");
                return true;
            }
            stackx[++top] = intdata;
            return true;
        }        public int Pop()
        {
            if (top == 0)
            {
                Console.WriteLine("The Stack is Empty.........");
                return 0;
            }
           
            return stackx[top--];
        }        public bool Pop(int num)
        {
            if (top == 0)
            {
                Console.WriteLine("The Stack is Empty.........");
                return false;
            }
            top = top - num;
            return true;
        }        public int Peek()
        {
            if (top == 0)
            {
                Console.WriteLine("The Stack is Empty.........");
                return 0;
            }
            return stackx[top];
        }        public void Display()
        {
            for (int i = 0; i < top+1; i++)
            {
                Console.WriteLine("第"+(i+1)+"个元素是： "+stackx[i].ToString());
            }
        }
    }
}

Answer 1

如果是要用到栈可以使用下面的类，如果要自己实现也很容易，可以使用数组或者链表等。 System.Collections.Generic.Stack<String> stack=new System.Collections.Generic.Stack<String>();
stack.Push("in String");

Answer 2

.net自带堆栈，普通的 stack 可以放 object，还有泛型的 stack，放值类型可以减少装箱。