基于C＃中的相同列进行合并 [英] Merge based on same columns in C#

问题描述

我的列表如

列表< account> = {{1,1}，{1,2}，{1,3}，{2,3}}



所以现在我想输出像



list< acount> = {{1,6}，{2,3} }

喜欢比较第一个元素如果相同则添加第二个元素

所以1在三个相同然后我添加所有1和得到6





所以请帮助我们获得这样的价值C＃



我尝试了什么：



我试过循环，但它没有工作，因为我只有一个列表，为什么请帮助

I have list like
List<account>={{1,1},{1,2},{1,3},{2,3}}

So now i want output like

list<acount>={{1,6},{2,3}}
like compare first element if it is same then add second element
so 1 was same in three then i added all with 1 and got 6


so pls help to get value like this C#

What I have tried:

I have tried for loop but it is not working as i have only one list thats why please help

推荐答案

尝试：

Try:

List<KeyValuePair<int, int>> list = new List<KeyValuePair<int, int>>()
   { new KeyValuePair<int, int>(1, 1),
     new KeyValuePair<int, int>(1, 2),
     new KeyValuePair<int, int>(1, 3),
     new KeyValuePair<int, int>(2, 3)};
list = list.GroupBy(kvp => kvp.Key).Select(g => new KeyValuePair<int, int>(g.Key, (int) g.Sum(x => x.Value))).ToList();

这篇关于基于C＃中的相同列进行合并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！