windows - 在 VB.NET 中制作二维动态数组

Question

我如何在 VB.NET 中创建一个无限范围的数组并获得包含的变量数量？

我试过了：

Dim _items(,) As String
_items(0, 0) = "hy"
        _items(0, 1) = "hello"
        _items(1, 0) = "bye"
        _items(1, 1) = "bye2"

        MsgBox(_items.GetLength(1)) 'But i cant get the length

非常感谢

Answer 1

我认为你的语法是错误的

Dim n As Integer = 2
Dim str As String(,) = New String(n - 1, n - 1) {}

 MsgBox(_items.GetLength(1)) //if n is 3 then this will return 3

    Dim n,m As Integer 
     n=3,m=2
    Dim str As String(,) = New String(n - 1, m - 1) {}

 MsgBox(_items.GetLength(1)) //  return 2
 MsgBox(_items.GetLength(1)) //  return 3