VB编程:利用指针实现数组拆分
运行效果:
程序代码:
- Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
-
- Private Sub Form_Load()
- Dim arr()
- arr = Array(1, 2, 3, 4, 5, 6, 7, 8, 9)
- Text1.Text = ""
- For i = 0 To UBound(arr)
- Text1.Text = Text1.Text & arr(i)
- Next i
- Dim str(4)
- CopyMemory ByVal VarPtr(str(0)), ByVal VarPtr(arr(4)), 5 * 16 '截取数组标号第四位之后的数
- ReDim Preserve arr(UBound(arr) - 5)
- Text2.Text = ""
- For i = 0 To UBound(arr)
- Text2.Text = Text2 & arr(i) '显示前半截
- Next i
- Text3.Text = ""
- For i = 0 To UBound(str)
- Text3.Text = Text3 & str(i) '显示后半截
- Next i
- End Sub