LINQ 查询组合两个 string[] 数组

Question

I have this case where I have two string arrays.

string[] array1 = new string[] { "aa", "bb", "cc"};
string[] array2 = new string[] { "abcd", "abbc", "abc", "cc", "abb" };

I want to use a linq query to choose only the items from array2 that have in them any at least one item form array1 .

So in this case I want to get in response:

{ "abbc", "cc", "abb" };

I am starting my work with linq so please give me some explanation what I am doing wrong. At this point this is my best try:

var res = array2.Select(n => array1.Select( c=> c.Contains(n))).ToArray();

But it returns:

array[] {array1, array1, array1, array1, array1}

Answer 1

问题是，通过使用array1.Select(c=> c.Contains())您返回了一组布尔值（包含：是/否）。

var res = array2.Where(x => array1.Any(y => x.Contains(y))).ToArray();