vb.net - 在同一数据集合上执行嵌套循环的最快方法

Question

我想以最快的方式做到这一点。请注意，该数组包含一个类的项目，“DoSomething”执行一项比较数组的两个元素的长任务。

    Dim myArray() As String = {"aaaa", "bbbb", "cccc", "dddd", "eeee"}
    For i As Integer = myArray.GetLowerBound(0) To myArray.GetUpperBound(0)
        For j As Integer = myArray.GetLowerBound(0) To i - 1
            DoSomething(myArray(i), myArray(j))
        Next
    Next

我该怎么办？