stack用法

//stack用法

using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
             Stack sk = new Stack();
             Stack sk2 = new Stack();
            foreach (int i in new int[4] { 1, 2, 3, 4 })
            {
                 sk.Push(i);//填充
                 sk2.Push(i);
             }
            
            foreach (int i in sk)
            {
                 Console.WriteLine(i);//遍历
             }
             sk.Pop();
             Console.WriteLine("Pop");
            foreach (int i in sk)
            {
                 Console.WriteLine(i);
             }
            
             sk2.Peek();//弹出最后一项不删除//清清月儿 http://blog.csdn.net/21aspnet/ 
             Console.WriteLine("Peek");
            foreach (int i in sk2)
            {
                 Console.WriteLine(i);
             }
            while (sk2.Count != 0)
            {
                int i = (int)sk2.Pop();//清空
                 sk2.Pop();//清空
             }
             Console.WriteLine("清空");
            foreach (int i in sk2)
            {
                 Console.WriteLine(i);
             }
         }
     }
}