添上MSComm控件在客户端编程就可以了<object classid="clsid:648A5600-2C6E-101B-82B6-000000000014" id="MSComm1">
<param name="CommPort" value="1">
<param name="DTREnable" value="1">
<param name="Handshaking" value="0">
<param name="InBufferSize" value="1024">
<param name="InputLen" value="0">
<param name="NullDiscard" value="0">
<param name="OutBufferSize" value="512">
<param name="ParityReplace" value="63">
<param name="RThreshold" value="0">
<param name="RTSEnable" value="0">
<param name="BaudRate" value="9600">
<param name="ParitySetting" value="0">
<param name="DataBits" value="8">
<param name="StopBits" value="0">
<param name="SThreshold" value="0">
<param name="EOFEnable" value="0">
<param name="InputMode" value="0">
</object>