vb.net数组取值 vbs 数组
vb.net数组如何赋值
Dim abc(2) As Integer
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abc = {0, 1, 2}
'或者
Dim abcd() As Integer
ReDim abcd(9)
For i As Integer = 0 To abcd.Length - 1
abcd(i) = i
Next
也可声明为字符串数组
vb.net数组赋值
Dim x(8, 8)
Dim a As Integer
Dim b As Integer
b = 0
For i = 0 To 8
For j = 0 To 8
If b = 3 Then
b = 1
a = a + 1
Else
b = b + 1
End If
x(i, j) = aNext
Next
VB.NET 动态二维数组如何循环赋值和取值
for i =0 to ...
for j =0 to ...
keyarray(i,j)=
next
next
双重循环，赋值和读取一样
在VB.net中如何取变量、结构、数组、函数的地址？
当然可以的，需要System.Runtime.InteropServices 命名空间中的 Marshal 类
Imports System.Runtime.InteropServices '这里一定要有
Public Class Form1
Public Structure m_Point
Dim x As Integer
Dim y As Integer
End Structure
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer = 50
Dim ai() As Integer = {1, 2, 3, 4, 5}
Dim pi As IntPtr = GCHandle.Alloc(i, GCHandleType.Pinned).AddrOfPinnedObject() '取得整形变量的指针
Dim pai As IntPtr = GCHandle.Alloc(ai, GCHandleType.Pinned).AddrOfPinnedObject() '取得整形数组首地址指针
MsgBox(Marshal.ReadInt32(pi, 0)) '读回整形变量指针指向的值
MsgBox(Marshal.ReadInt32(pai, 0 * 4)) '读回数组的第一个元素
MsgBox(Marshal.ReadInt32(pai, 1 * 4)) '读回数组的第二个元素
MsgBox(Marshal.ReadInt32(pai, 2 * 4)) '读回数组的第三个元素
'-----下面是结构--------------------------
Dim m_p As New m_Point
m_p.x = 100
m_p.y = 50
Dim pm_p As IntPtr = GCHandle.Alloc(m_p, GCHandleType.Pinned).AddrOfPinnedObject() '取得结构首地址指针
MsgBox(Marshal.ReadInt32(pm_p, 0 * 4)) '读回结构的第一个值
MsgBox(Marshal.ReadInt32(pm_p, 1 * 4)) '读回结构的第二个值
End Sub
End Class
当前标题：vb.net数组取值 vbs 数组
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