stack.pop()方法

C＃Stack.Pop()方法 (C# Stack.Pop() method)

Stack.Pop() method is used to remove an object from the top of the stack. The method removes and returns the object from the top.

Stack.Pop()方法用于从堆栈顶部删除对象。 该方法从顶部删除并返回对象。

Syntax:

句法：

Object Stack.Pop();

Parameters: None

参数：无

Return value: Object – it returns the items to be removed from the top.

返回值： Object –返回从顶部删除的项目。

Example:

例：

declare and initialize a stack:    Stack stk = new Stack();    insertting elements:    stk.Push(100);    stk.Push(200);    stk.Push(300);    stk.Push(400);    stk.Push(500);    popping stack elements:    stk.Pop();    stk.Pop();    stk.Pop();        Output:    200 100

C＃示例使用Stack.Pop()方法从堆栈中删除对象 (C# example to remove an object from the stack using Stack.Pop() method)

using System;using System.Text;using System.Collections;namespace Test{
       class Program    {
           //function to print stack elements        static void printStack(Stack s)        {
               foreach (Object obj in s)            {
                   Console.Write(obj + " ");            }            Console.WriteLine();        }        static void Main(string[] args)        {
               //declare and initialize a stack            Stack stk = new Stack();            //insertting elements            stk.Push(100);            stk.Push(200);            stk.Push(300);            stk.Push(400);            stk.Push(500);            //printing stack elements            Console.WriteLine("Stack elements before popping are...");            printStack(stk);            //popping stack elements            object item = 0;            item = stk.Pop();            Console.WriteLine(item + " is popped");            item = stk.Pop();            Console.WriteLine(item + " is popped");            item = stk.Pop();            Console.WriteLine(item + " is popped");            //printing stack elements            Console.WriteLine("Stack elements after popping are...");            printStack(stk);            //hit ENTER to exit            Console.ReadLine();        }    }}

Output

输出量

Stack elements before popping are...500 400 300 200 100500 is popped400 is popped300 is poppedStack elements after popping are...200 100

Reference:

参考：

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stack.pop()方法