问题
I have a function that returns a 1D-array like this:
Public Function KeyConvert([args]) As Byte()
and a 2 dimension array:
Public KeyList(15, 5) As Byte
Which can be seen as 15 rows,each row is a 5 element array, as we all already knew.
Now I want to call the function and assign the result (which is a 1D array) to a row (say row 4) in the KeyList array. At first I thought the code should be like
Keylist(4) = KeyConvert([args])
But that didn't work. I cannot find a way to reference to that specific row.
So anybody have any idea? Thank you very much
回答1:
You want a jagged array, not a m-d one.
Something closer to:
Public KeyList(15)() As Byte
回答2:
There is no notion in VB.Net (or C#) of "a row" (or "a column") in a 2-dimensional array. Array elements in .Net can only be accessed one at a time.
If you make your KeyList variable be a one-dimensional array of 5-element arrays, then you will be able to use the syntax you showed.
If you need to keep KeyList as a 2-dimensional array so that you can more easily access any single "point" within it, then you can write a method that is passed the row to update and the 5-element array whose elements are to be copied, and have that method copy the 5 values one at a time into the respective columns.
来源：https://stackoverflow.com/questions/6619318/vb-net-how-to-get-reference-to-a-row-in-a-2d-array