矩阵相加 对于初学者非常有用 Dim irow As Integer Dim icol As Integer Dim iA(3, 2) As Integer Dim iB(3, 2) As Integer Dim iC(3, 2) As Integer Dim rand = New Random(CInt(Date.Now.Ticks And Integer.MaxValue)) For irow = 0 To 3 For icol = 0 To 2