如果我有一个清单List<KeyValuePair<string,string>>
ex.
["abc","123"]
["asc","123"]
["asdgf","123"]
["abc","123"]
我如何区分这个列表?
两者各有特色Key
and Value
:
var results = source.Distinct().ToList();
区别在于Key
or Value
(只需更改属性GroupBy
call:
var results = source.GroupBy(x => x.Key).Select(g => g.First()).ToList();
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