using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; namespace stack_test { class Program { static void Main() { Stack sk1 = new Stack(); Stack sk2 = new Stack(); foreach (int i in new int[4] { 1, 2, 3, 4 }) { sk1.Push(i); //入栈 sk2.Push(i); } foreach (int i in sk1) { Console.WriteLine(i); //遍历 } sk1.Pop(); //出栈 Console.WriteLine("Pop"); foreach (int i in sk1) { Console.WriteLine(i); } sk2.Peek(); //弹出最后一项不删除 Console.WriteLine("Peek"); foreach (int i in sk2) { Console.WriteLine(i); } } } }