使用通讯组件;
try{
axMSComm1.PortOpen = false;//关闭
}
catch{}
try{
axMSComm1.CommPort = 1;
axMSComm1.Settings = "9600,n,8,1";
axMSComm1.PortOpen = true;//打开
"串口已经打开";
}
catch//(COMException ex)
{
"串口连接错误";
}
try{
axMSComm1.PortOpen = false;//关闭
}
catch{}
try{
axMSComm1.CommPort = 1;
axMSComm1.Settings = "9600,n,8,1";
axMSComm1.PortOpen = true;//打开
"串口已经打开";
}
catch//(COMException ex)
{
"串口连接错误";
}
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货