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'传地址用ByRef
Private Declare Function Getabc Lib "abc.dll" Alias "_Getabc@56" (ByVal a As Double, ByRef b As Double) As Integer
'或什么都不加,默认是ByRef的
'Private Declare Function Getabc Lib "abc.dll" Alias "_Getabc@56" (ByVal a As Double, b As Double) As Integer
Private Sub Command1_Click()
Dim b As Double
Dim aa As Integer
aa = Getabc (99, ByVal b)
If aa > 0 Then
MsgBox ("aaaaa")
Else
if(b == 100)
{
MsgBox ("bbbbbbb")
}else
{
MsgBox ("ccccccc")
}
End If
End Sub