如何汇总列表中的所有项目? [英] How can I sum all items in a list?

问题描述

我正在学习C#，但现在遇到了问题.如您所见，我的列表名称是"notlar".当某人按下"2"时，我想要列表项的平均值.我该怎么办"+ listitem1 + listitem2".之后，我想将其写入int sonuc

Hi,
I''m learning c# but i have a problem now. As you see, i have a list name which is "notlar". When someone press "2" i want average of list items. How can I do " +listitem1+listitem2". After that i want to write it to int sonuc

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace OrtalamaHesabı
{
    class Program
    {
        static void Main(string[] args)
        {
           int  secenek, devam = 1;
           List<int> notlar = new List<int>();
           int sonuc = 0;

            while (devam == 1)
            {
                Console.WriteLine();

                Console.WriteLine("Add number ==>");
                notlar.Add(int.Parse(Console.ReadLine()));

                Console.WriteLine("Add number->1 ,Take arithmatic average ->2, Exit ->3");

                secenek = int.Parse(Console.ReadLine());

                if (secenek == 3)
                    devam = 0;
                if (secenek == 2)
                {

                }
            }
        }
    }
}

推荐答案

添加所有列表项:

To add all list items:

using System.Linq;

//...

sonuc = notlar.Sum();

如果您使用带有合适短语的互联网搜索引擎，则无需提出此问题.

在 c#list<>上进行搜索平均.您将获得许多有用的可能性.

If you had used an internet search engine with a suitable phrase, you would not have needed to ask this question.

Do a Search on c# list<> average. You will get lots of useful possibilities.

这篇关于如何汇总列表中的所有项目?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！