如何将Outout发送到com端口 [英] How to send Outout to com port

问题描述

我需要在com端口(com1)上发送信号，但我必须能够从端口读取信号，但无法将信号输出到com端口，输出功能会引发一些异常
"base {System.SystemException} = {"来自HRESULT的异常:0x800A018A(CTL_E_GETNOTSUPPORTED)}"
我需要将ENTER信号发送到com端口
欢迎任何帮助.

我的代码是

Hi,
i need to send a signal on com port (com1) i m able to read from the port but not able to output the signal to com port the output funtion is throwing some exception
"base {System.SystemException} = {"Exception from HRESULT: 0x800A018A (CTL_E_GETNOTSUPPORTED)"}"
and i need to send ENTER signal to com port
any help is welcome.

my code is

com.Output= "r01";
after that i want to send enter signal to com port

推荐答案

ENTER信号是什么意思?你是说CR/LF字符吗?
com.Output ="r01 \ n "帮不上忙吗?

what do you mean by ENTER signal? Do you mean a CR/LF character?
com.Output = "r01\n" doesn''t do the trick for you?

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