我使用以下代码声明了88个数组列表的数组:
Dim Data_FRONT(88) As ArrayList
,然后我尝试使用以下代码向其添加传入数据:
Dim Data_In(88) As Double
For i = 0 To 87
Data_In(i) = 15 ' Hard-coding just to test it
Next
' ...
' Then later in the code after some processing
For i = 0 To 87
Data_FRONT(i).Add(Data_In(i))
Next
我会收到以下运行时错误:"对象引用未设置为对象的实例。"
我什至尝试这样做:
For i = 0 to 87
Data_FRONT(i).Add(15) ' Hard-coding to test it
Next
我仍然会遇到这个错误。有任何想法吗?
您需要实际初始化每个数组列表:
For i = 0 To 87
Data_FRONT(i) = new ArrayList() ' Initialize each ArrayList
Data_FRONT(i).Add(Data_In(i))
Next
说,如果您总是存储一系列双打,为什么不只是制作一个多维数组?
Dim Data(88,88) As Double = new Double(88, 88)