Given a list, and we have to count its total number of elements using List.Count property.

给定一个列表，我们必须使用List.Count属性计算其元素总数 。

C＃清单 (C# List)

A list is used to represent the list of the objects, it is represented as List<T>, where T is the type of the list objects/elements.

列表用于表示对象的列表，它表示为List <T> ，其中T是列表对象/元素的类型。

A list is a class which comes under System.Collections.Generic package, so we have to include it first.

列表是System.Collections.Generic包下的一个类，因此我们必须首先包含它。

List.Count属性 (List.Count property)

Count is a property of List class; it returns the total number of elements of a List.

Count是List类的属性； 它返回List的元素总数。

Syntax:

句法：

List_name.Count;

Here, List_name is the name of input/source list whose elements to be counted.

在此， List_name是要计算其元素的输入/源列表的名称。

Example:

例：

Input:    //an integer list    List
    
      int_list = new List
     
       { 10, 20, 30, 40, 50, 60, 70 };    //a string list     List
      
        str_list = new List
       
        {	    "Manju", "Amit", "Abhi", "Radib", "Prem"    };    Function call:    int_list.Count;    str_list.Count;    Output:    7    5
       
      
     
    

C＃程序计算列表中元素的总数 (C# program to count the total number of elements of a List)

using System;using System.Text;using System.Collections.Generic;namespace Test{
       class Program    {
           static void Main(string[] args)        {
               //an integer list            List
    
      int_list = new List
     
       {
    10, 20, 30, 40, 50, 60, 70 };            //a string list             List
      
        str_list = new List
       
        {
   				"Manju", "Amit", "Abhi", "Radib", "Prem"			};                //printing total number of elements            Console.WriteLine("Total elements in int_list is: " + int_list.Count);            Console.WriteLine("Total elements in str_list is: " + str_list.Count);            //hit ENTER to exit            Console.ReadLine();        }    }}
       
      
     
    

Output

输出量

Total elements in int_list is: 7Total elements in str_list is: 5

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