某些陣列會具有兩個維度,例如校園中每棟建築物之每個樓層的辦公室數目。元素規格需要有建築物編號和樓層,而每個元素則會保留該建築物和樓層組合的計數。因此,這類陣列會使用兩個索引。下列範例會宣告一個變數,以保留辦公室計數的「二維陣列」(Two-Dimensional Array),建築物 0 到 40 和樓層 0 到 5。
Thestudentsarray in the preceding example is a one-dimensional array because it uses one index. An array that uses more than one index or subscript is calledmultidimensional. For more information, see the rest of this article andArray Dimensions in Visual Basic. ...
We work with two-dimensional array. Program.vb Option Strict On Module Example Sub Main() Dim numbers(,) As Integer = { {2, 1}, {3, 5}, {4, 4}, {7, 2}, {0, 0} } For i As Integer = 0 To UBound(numbers, 1) For j As Integer = 0 To UBound(numbers, 2) Console....
The students array in the preceding example is a one-dimensional array because it uses one index. An array that uses more than one index or subscript is called multidimensional. For more information, see the rest of this article and Array Dimensions in Visual Basic. Creating an array You can...
Dim twoDimensionalStrings(-1, 3) As String 在下列情況中,您可能需要建立長度為零的陣列:為了避免發生 NullReferenceException 例外狀況,程式碼必須存取 Array 類別的成員 (例如 Length 或Rank),或者呼叫 Visual Basic 函式 (例如 UBound)。 您希望不需檢查 Nothing (以特殊情況處理),讓使用程式碼更簡單。 程式...
Carr, J.R. y K. Mela (1998) "Visual Basic programs for one, two or three-dimensional geostatistical analysis". Computers and Geosciences 24(6), 531-536.The nestedness temperature calculator: A visual basic program, including 294 presence-absence matrices [computer program - Atmar, BD - ...
The following statement declares a two-dimensional array of type Double. The array has 4 rows (3 + 1) of 6 columns (5 + 1) each. Note that an upper bound represents the highest possible value for the index, not the length of the dimension. The length of the dimension is the upper ...
You can easily create several plots by passing a two-dimensional array to the PlotY or ChartY method. Each row contains data for a single plot on the graph. The graph, which contains a CWPlots collection that manages individual CWPlot objects, assigns each data plot to a CWPlot object. ...
As mentioned earlier, implementation of Multi-Dimensional array is possible with Visual Basic. Additionally, you can even refer the multi-dimensional arrays as rectangular arrays. Here are exemplary declarations of two and three dimensional arrays: 2-dimensional array: Dim multiDArray(5, 10) As ...
Module IterateWithForEach Public Sub Main() ' Declare and iterate through a one-dimensional array. Dim numbers1 = {10, 20, 30} For Each number In numbers1 Console.WriteLine(number) Next Console.WriteLine() Dim numbers = {{1, 2}, {3, 4}, {5, 6}} For Each number In numbers Conso...