C# Stack.Clear()用法及代码示例

C# Stack.Clear() 方法

Stack.Peek() 方法用于从堆栈中移除所有对象。

用法:

    void Stack.Clear();

参数：空

返回值： void——它什么都不返回。

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);

    clearing all objects/elements:
    stk.Clear();
    
    Output:
    None

使用 Stack.Clear() 方法从堆栈中清除所有对象的 C# 示例

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);

            Console.WriteLine("Total number of objects in the stack:" + stk.Count);

            //printing stack elements
            Console.WriteLine("Stack elements are...");
            printStack(stk);

            //clearing all objects/elements
            stk.Clear();

            Console.WriteLine("Total number of objects in the stack:" + stk.Count);


            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

输出

Total number of objects in the stack:5
Stack elements are...
500 400 300 200 100
Total number of objects in the stack:0

参考：Stack.Clear 方法