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  4. 获得不同的值（使用 Distinct 方法）

获得不同的值（使用 Distinct 方法）

Created: November-22, 2018 

Dim duplicateFruits = New List(Of String) From {"Grape", "Apple", "Grape", "Apple", "Grape"}
'At this point, duplicateFruits.Length = 5

Dim uniqueFruits = duplicateFruits.Distinct();
'Now, uniqueFruits.Count() = 2
'If iterated over at this point, it will contain 1 each of "Grape" and "Apple"