按x分组的总和性能(VB.Net --> C#) .net Core 2.0

Dim data As List(Of Integer) = New List(Of Integer)() From {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
Dim groupedData = From d In data
                  Group By x = d Mod 2 Into Group
                  Select New With {
                      .GroupKey = x,
                      .Sum = Group.Sum()
                  }

For Each group In groupedData
    Console.WriteLine("Group Key: " & group.GroupKey & ", Sum: " & group.Sum)
Next

List<int> data = new List<int> { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var groupedData = from d in data
                  group d by d % 2 into g
                  select new
                  {
                      GroupKey = g.Key,
                      Sum = g.Sum()
                  };

foreach (var group in groupedData)
{
    Console.WriteLine("Group Key: " + group.GroupKey + ", Sum: " + group.Sum);
}

Group Key: 1, Sum: 25
Group Key: 0, Sum: 30