查找数组中某个值的索引 [英] Find index of a value in an array

问题描述

linq 可以以某种方式用于在数组中查找值的索引吗?

Can linq somehow be used to find the index of a value in an array?

例如，这个循环定位数组中的键索引.

For instance, this loop locates the key index within an array.

for (int i = 0; i < words.Length; i++)
{
    if (words[i].IsKey)
    {
        keyIndex = i;
    }
}

推荐答案

int keyIndex = Array.FindIndex(words, w => w.IsKey);

这实际上为您提供了整数索引而不是对象，无论您创建了什么自定义类

That actually gets you the integer index and not the object, regardless of what custom class you have created

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