C#|获取堆栈中包含的元素数-yiteyi-C++库

堆栈代表一个 后进先出 对象的集合。 堆栈。计数属性 用于获取堆栈中包含的元素数。检索此属性的值是一个复杂的过程 O（1） 活动

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语法：

myStack.Count

在这里 迈斯塔克 是堆栈的名称

返回值： 该属性返回堆栈中包含的元素数。

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);                   
                                         }                   
                     }                   

输出：

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);                   
                                         }                   
                     }                   

输出：

Total number of elements in the Stack are : 0

参考：

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

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