這是我的一個練習的代碼：
Module Module1
Sub Main()
Dim a_row As New ArrayList
Dim x As Integer = 1
For a As Integer = 0 To 3
Dim a_col As New List(Of Integer)
For b As Integer = 0 To 4
a_col.Add(x)
x = x + 1
Next
a_row.Add(a_col)
Next
For i As Integer = 0 To a_row.Count - 1
For j As Integer = 0 To a_row(i).count - 1
Debug.Print("{0} type:{1}", a_row(i)(j), TypeName(a_row(i)(j)))
Next
Next
End Sub
End Module
如果設定Option Strict On的情況下，編譯器都會對a_row(i)，a_row(i)(j)這樣的地方報錯“不允許后期系結”，這個問題除了設定Option Strict Off還有別的辦法么？另外我這里a_col用的是泛型的List，已經指定了元素為integer型別了，還存在隱式轉換的問題么？
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/132209.html
標籤：VB.NET