C# 两个字符串数组的交集(忽略大小写)

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时间:2020-08-09 13:22:21  来源:igfitidea点击:

Intersection of two string array (ignore case)

c#.netlinqintersection

提问by Ali

I have two arrays:

我有两个数组:

string[] array1 = { "Red", "blue", "green", "black" };
string[] array2 = { "BlUe", "yellow", "black" };

I need only the matching strings in one array (ignoring case).

我只需要一个数组中的匹配字符串(忽略大小写)。

Result should be:

结果应该是:

string[] result = { "blue", "black" } or { "BlUe", "black" };

采纳答案by user7116

How about an Enumerable.Intersectand StringComparercombo:

Enumerable.IntersectStringComparer组合怎么样:

// other options include StringComparer.CurrentCultureIgnoreCase
// or StringComparer.InvariantCultureIgnoreCase
var results = array1.Intersect(array2, StringComparer.OrdinalIgnoreCase);