Question

vb.net 如何在结构体内设定定长数组

如这样：
Public Structure wheelmodel
Public ID As Short
Public swapway(KEYLONG) As Short
Public start As Short
End Structure
'KEYLONG是符号常量，已有值
提示“声明结构成员的数组不能用初始大小声明”
应该怎样处理？

Answer 1

结构体无法初始化值，你可以用类实现，或者写一个构造函数，把值传进去。
Public Structure wheelmodel
Public ID As Short
Public swapway() As Short
Public start As Short

Public Sub New(ByVal Size As UShort) 'Size就是传入的数组的大小
swapway = New Short(Size) {}
End Sub

End Structure
调用的时候：
Dim x As wheelmodel = New wheelmodel(10)

Answer 2

Structure Book
<VBFixedArray(4)> Public Chapter() As Integer
End Structure