我如何区分我的键/值对列表

Question

如果我有一个清单List<KeyValuePair<string,string>>前.

["abc","123"]
["asc","123"]
["asdgf","123"]
["abc","123"]

我怎么能分清这个清单呢？

Answer 1

区别于:Key和Value:

var results = source.Distinct().ToList();

区别于Key或Value(只是更改GroupBy电话中的属性:

var results = source.GroupBy(x => x.Key).Select(g => g.First()).ToList();