vb中的乘法运算

简单型

功能：一位数乘以一位数

            一位数乘以两位数

            两位数乘以两位数

程序：Private Sub Command1_Click()

             Dim a As Byte, c As Integer

            Dim b As String

            b = Me.Text1.Text

             a = Int(Val(b))

            b = Me.Text2.Text                                                            

            c = Int(Val(b))

            Dim r As Byte

             r = a * c

            Print r

          End Sub

复杂型

多位数乘以一位数

Private Sub command1_Click()

Cls

Me.Font.Size = 24

Dim c As Byte

Dim a() As Byte

Dim b As String

Dim changdu As Long, i As Long

changdu = Len(Text1.Text)

ReDim a(changdu)

For i = 1 To changdu

b = Mid(Me.Text1.Text, i, 1)

a(i) = Int(Val(b))

Next i

b = Me.Text2.Text

c = Int(Val(b))

Dim m As Byte

Dim rm As Byte

Dim r() As Byte

ReDim r(changdu)

Dim d As Byte

For i = changdu To 1 Step -1

rm = a(i) * c + d

r(i) = rm Mod 10

d = rm \ 10

Next i

If d <> 0 Then

Print d;

End If

For i = 1 To changdu

Print r(i);

Next i

End Sub

未完待续。。。。。。