C#栈Stack的使用

using System;
using System.Collections.Generic;

namespace CSharp栈
{
class Program
{
static void Main(string[] args)
{
Stack<string> stack = new Stack<string>();
stack.Push("元素1");
stack.Push("元素2");
stack.Push("元素3");
stack.Push("元素4");

// 遍历元素
foreach (string item in stack)
{
Console.WriteLine(item);
}

//pop弹出元素，移除并返回位于 Stack 顶部的对象。
Console.WriteLine("\n移除并返回位于 Stack 顶部的对象---{0}", stack.Pop());
//peek返回位于 Stack 顶部的对象但不将其移除。
Console.WriteLine("返回位于 Stack 顶部的对象但不将其移除---{0}", stack.Peek());
foreach (string item in stack)
{
Console.WriteLine(item);
}

// 创建新栈，复制元素
Stack<string> stackNew = new Stack<string>(stack.ToArray());

Console.WriteLine("\n创建新栈，复制元素:");
foreach (string item in stackNew)
{

Console.WriteLine(item);
}

//contains用法
Console.WriteLine("\nstackNew.Contains(\"元素3\") = {0}",
stackNew.Contains("four"));

Console.WriteLine("\nstackNew.Clear()");
stackNew.Clear();
Console.WriteLine("\nstackNew.Count = {0}", stackNew.Count);
Console.ReadKey();
}
}
}