C#列表<>添加名单字典 [英] C# List<> Add lists to dictionary
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问题描述
Dictionary<string, List<Piese>> SetPiese = new Dictionary<string, List<Piese>>();
char[] litere = "ABCDEFGHIJLMNOPRSTUVXZ".ToCharArray();
for (int i = 1; i <= litere.Length; i++) {
SetPiese.Add(litere[i], Set + litere[i]);
}
List<Piese> SetA = GenerareSetLitere("A", 1, 11);
List<Piese> SetB = GenerareSetLitere("B", 9, 2);
List<Piese> SetC = GenerareSetLitere("C", 1, 5);
................................................
所以我有很多的名单,我想将它们添加到字典。我怎么能这样做吗?
So I have many lists and I want to add them to a dictionary. How can I do this right ?
推荐答案
很简单,不要在不同的变量开始申报。这将永远与编程工作的一个痛。如果你开始:
Quite simply, don't declare them in separate variables to start with. That will always be a pain to work with programmatically. If you'd started with:
List<Piese>[] sets = new List<Piese>[]
{
GenerareSetLitere("A", 1, 11),
GenerareSetLitere("B", 9, 2),
GenerareSetLitere("C", 1, 5)
...
};
那么你可以使用:
then you could use:
// Note loop condition change
for (int i = 0; i < litere.Length; i++) {
SetPiese.Add(litere[i], sets[i]);
}
甚至更好,如果 literere
实际上是一堆表达式可以内嵌指定,你可以做整个事情的集合初始化:
Or even better, if literere
is actually a bunch of expressions you can specify inline, you could do the whole thing in a collection initializer:
Dictionary<string, List<Piese>> SetPiese = new Dictionary<string, List<Piese>>
{
{ "first-key", GenerareSetLitere("A", 1, 11) },
{ "second-key", GenerareSetLitere("B", 9, 2) }
};
等。
etc.
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