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

給定一個列表，我們必須使用List.Count屬性計算其元素總數(shù) 。

C＃清單 (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.

列表用于表示對象的列表，它表示為List <T> ，其中T是列表對象/元素的類型。

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包下的一個類，因此我們必須首先包含它。

List.Count屬性 (List.Count property)

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

Count是List類的屬性； 它返回List的元素總數(shù)。

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是要計算其元素的輸入/源列表的名稱。

Example:

例：

Input://an integer listList<int> int_list = new List<int> { 10, 20, 30, 40, 50, 60, 70 };//a string list List<string> str_list = new List<string>{"Manju", "Amit", "Abhi", "Radib", "Prem"};Function call:int_list.Count;str_list.Count;Output:75

C＃程序計算列表中元素的總數(shù) (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 listList<int> int_list = new List<int> { 10, 20, 30, 40, 50, 60, 70 };//a string list List<string> str_list = new List<string>{"Manju", "Amit", "Abhi", "Radib", "Prem"};//printing total number of elementsConsole.WriteLine("Total elements in int_list is: " + int_list.Count);Console.WriteLine("Total elements in str_list is: " + str_list.Count);//hit ENTER to exitConsole.ReadLine();}} }

Output

輸出量

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

翻譯自: https://www.includehelp.com/dot-net/gets-the-number-of-elements-contained-in-the-list-t-in-c-sharp.aspx

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