有没有办法在C＃数组中更改元组值？ [英] Is there a way to change tuple values inside of a C# array?

问题描述

我正在使用的数组是 int [,,] ，我想用一种方法将每个（我认为是）元组的第一个值设为那么我想多次修改后两个值。 （用另一种方法）

The array I'm using is int[,,] and I want to make the first value of each (what I assume to be) tuple in one method and then I want to modify the second two values several times. (in another method)

例如：

int[,,] MyArrayGet()
{    
    int [,,] myArray;
    int [,,] myArray = new int[9,9,9];
    for (int i = 0; i < 10; i++)
    {
        myArray[i] = [SomeInt,0,0];
    }
    return myArray;
}
int[,,] MyArrayModify(int[,,] myArray)
{   
    for (int i = 0; i < 10; i++)
    {
        if (somthing is true) 
        {
            myArray[i] = [dont change this value,n+1,dont change this value]
        }
        if (somthingelse is true)
        {
            my  Array[i] = [dont change this value,dont change this value,n+1]
    }
}

是否有快速简便的方法？

Is there a quick and easy way to do this?

我已经检查过这个问题如何从中获取字符串数组List< Tuple< int，int，string>>>> ;? ，但是我都不认为它可以回答我的问题。

I have checked this question How to get array of string from List<Tuple<int, int, string>>? however either I do not feel it answers my question.

推荐答案

元组在设计上是不可变的。

Tuple by design is immutable. Just create new one when modifying.

IEnumerable<Tuple<int, int, int>> Get()
{
    for (int i = 0; i < 10; i++)
    {
        yield return Tuple.Create(i, 0, 0);
    }
}

IEnumerable<Tuple<int, int, int>> Modify(IEnumerable<Tuple<int, int, int>> tuples)
{
    foreach (var tuple in tuples)
    {
        if (tuple.Item1 < 5)
        {
            yield return Tuple.Create(tuple.Item1, tuple.Item2 + 1, tuple.Item3);
        }
        else
        {
            yield return Tuple.Create(tuple.Item1, tuple.Item2, tuple.Item3 + 1);
        }
    }
}

---

您的代码比C＃更像javascript。 int [,,] 是3D数组，而不是3个项目的数组。

---

Your code looks like javascript more than C#. int[,,] is 3D array not array of 3 items.

Tuple< int，int，int> [] 是3个项目的 Tuple 的数组。如果您不是初学者并且使用LINQ，则 IEnumerable< Tuple< int，int，int>> 是更好的版本。

Tuple<int, int, int>[] is an array of Tuple of 3 items. If you are not a beginner and use LINQ, IEnumerable<Tuple<int, int, int>> is a better version.

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