LINQ起来。我知道这在VB中,但是您应该可以将其转换为C#:
Dim i = From Numbers In ints _ Group Numbers By Numbers Into Group _ Aggregate feq In Group Into Count() _ Select New With {.Number = Numbers, .Count = Count}
编辑:现在也用C#:
var i = from numbers in M group numbers by numbers into grouped select new { Number = grouped.Key, Freq = grouped.Count()};
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