C# Stack.Count用法及代碼示例

此方法(位於System.Collections命名空間下)用於獲取Stack中包含的元素數。容量是堆棧可以存儲的元素數量，計數是堆棧中實際存在的元素數量。容量始終大於或等於Count。檢索此屬性的值是O(1)操作。

用法:

public virtual int Count { get; }

返回值：它返回包含在類型為System.Int32的Stack中的元素數。

以下示例程序旨在說明上麵討論的屬性的用法：

範例1：

// C# code illustrate the 
// Stack.Count Property 
using System; 
using System.Collections; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Creating a Stack 
        Stack myStack = new Stack(); 
  
        // 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); 
    } 
}

輸出：

Total number of elements in the Stack are:6

範例2：

// C# code illustrate the 
// Stack.Count Property 
using System; 
using System.Collections; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Creating a Stack 
        Stack myStack = new Stack(); 
  
        // 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); 
    } 
}

輸出：

Total number of elements in the Stack are:0

參考：

https://docs.microsoft.com/en-us/dotnet/api/system.collections.stack.count?view=netframework-4.7.2

相關用法

注：本文由純淨天空篩選整理自Kirti_Mangal大神的英文原創作品 Stack.Count Property in C#。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。