發票機 wp-103s for vb6 列印

最簡單就是用:
(1)
Private Sub Command1_Click()
Open "lpt1:" For Output As #1
Print #1, "test"
Close #1
End Sub

(2)
Private Sub Command1_Click()
Open "com3:" For Output As #1
Print #1, "test"
Close #1
End Sub