C# |获取栈中包含的元素个数

原文:https://www . geeksforgeeks . org/c-sharp-获取堆栈中包含的元素数量/

栈 代表一个 后进先出 的集合对象。 堆叠< T >。计数属性用于获取堆栈中包含的元素数量。检索该属性的值是一个0(1)操作。

语法:

myStack.Count

这里 myStack 是 Stack < T >的名字

返回值:属性返回堆栈中包含的元素数量< T >。

例 1:

// C# code to Get the number of
// elements contained in the Stack
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a Stack of strings
        Stack<string> myStack = new Stack<string>();

        // Inserting the elements into the Stack
        myStack.Push("Chandigarh");
        myStack.Push("Delhi");
        myStack.Push("Noida");
        myStack.Push("Himachal");
        myStack.Push("Punjab");
        myStack.Push("Jammu");

        // Displaying the count of elements
        // contained in the Stack
        Console.Write("Total number of elements in the Stack are : ");

        Console.WriteLine(myStack.Count);
    }
}

Output:

Total number of elements in the Stack are : 6

例 2:

// C# code to Get the number of
// elements contained in the Stack
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a Stack of Integers
        Stack<int> myStack = new Stack<int>();

        // Displaying the count of elements
        // contained in the Stack
        Console.Write("Total number of elements in the Stack are : ");

        // The function should return 0
        // as the Stack is empty and it
        // doesn't contain any element
        Console.WriteLine(myStack.Count);
    }
}

Output:

Total number of elements in the Stack are : 0

参考:

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