各为老师我是一名初学者，我有一个程序调Read DM过程实现0000及0001内容，并分别显示在Text1及Text2中，请你们帮我看一下，下面的程序为什么不能显示在Text1及Text2，请帮我改正。谢谢！Private Sub Command1_Click() MSComm1.CommPort = 1 MSComm1.Settings = "9600,e,7,2" MSComm1.PortOpen = True O$ = "@00rd0000 0002" OO$ = O$ + fcs(O$) MSComm1.Output = OO$ + (Chr$(13)) Do Dummy = DoEvents() Loop Until MSComm1.InBufferCount >= 19 instring = MSComm1.Input Text1 = Mid$(instring, 8, 4) Text1 = Mid$(instring, 12, 4) MSComm1.PortOpen = False End Sub