Question

关于VB中函数过程的定义和调用 （应该很简单的大家来试试）

利用数组随机产生20个数，编写可对此数组数据进行排序的自定义函数过程，调用该函数将20个数用告到低的次序排列输出

Answer 1

Private Sub Form_Click()
Dim A(1 To 20) As Integer
Randomize
For i = 1 To 20
A(i) = Int(Rnd * 900) + 100
Next
Call SortArr(A)
For i = 1 To 20
Print A(i);
Next
Print
End Sub

Function SortArr(ByRef A() As Integer)
For i = LBound(A) To UBound(A)
For j = i To UBound(A)
If A(i) < A(j) Then
t = A(i)
A(i) = A(j)
A(j) = t
End If
Next
Next
End Function