[英]How to use a Tuple as a Key in a Dictionary C#
I have a Dictionary fieldTracker
which takes a Tuple<int, int>
as Key and string
as value. 我有一个Dictionary
fieldTracker
,它将Tuple<int, int>
作为Key,将string
作为值。 However, I can't seem to find the right way to access the value. 但是,我似乎无法找到正确的方法来访问该值。 Here is my current code:
这是我目前的代码:
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 5; j++)
dict.Add(new Tuple<int, int>(i, j), "");
}
dict[(1,1)] = "Hello";
I've searched around a bit in the Microsoft documentation, but can't find the key to this problem. 我在Microsoft文档中搜索了一下,但找不到这个问题的关键 。
dict[Tuple.Create(1, 1)] = "Hello";
or with C#7 ValueTuple : 或者使用C#7 ValueTuple :
var dict = new Dictionary<(int, int), string>();
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 5; j++)
dict.Add((i, j), "");
}
dict[(1, 1)] = "Hello";
You can try this way. 你可以试试这种方式。
var dict = new Dictionary<Tuple<int, int>, string>();
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 5; j++)
dict.Add(Tuple.Create<int, int>(i, j), "Hello");
}
string val = dict[Tuple.Create<int, int>(1,1)];
Hope this helps :) 希望这可以帮助 :)
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