初始化引用类型对象数组的简明方式(The concise way to initialize an array of reference type object)

初始化引用类型对象数组的简明方式(The concise way to initialize an array of reference type object)

我想知道是否有更好的方法来初始化一个引用类型对象的数组，像这样。

Queue<int>[] queues = new Queue<int>[10]; for (int i = 0; i < queues.Length; i++) queues[i] = new Queue<int>();

我尝试了Enumerable.Repeat，但数组中的所有元素都引用同一个实例，

Queue<int>[] queues = Enumerable.Repeat(new Queue<int>(), 10).ToArray();

我也试过Array.ForEach，但没有ref关键字它不起作用：

Queue<int>[] queues = Array.ForEach(queues, queue => queue = new Queue<int>());

任何其他想法？

I wonder if there is better way to initialize an array of reference type object, like this.

Queue<int>[] queues = new Queue<int>[10]; for (int i = 0; i < queues.Length; i++) queues[i] = new Queue<int>();

I tried Enumerable.Repeat, but all elements in the array refer to same instance,

Queue<int>[] queues = Enumerable.Repeat(new Queue<int>(), 10).ToArray();

I also tried Array.ForEach, but it doesn't work without ref keyword:

Queue<int>[] queues = Array.ForEach(queues, queue => queue = new Queue<int>());

any other idea?

最满意答案

你可以用这个：

Enumerable.Range(0,10).Select(_=>new Queue<int>()).ToArray()

但IMO你的第一个例子也很好。

You could use this:

Enumerable.Range(0,10).Select(_=>new Queue<int>()).ToArray()

But IMO your first example is perfectly fine too.