我要评论1.用c#编写一个控制台程序，列出计算机上可用的串口，并能够选择要用的串口，波特率配置成9600，8，n,1,能够进行接受和发送字符串。
2.添加依赖项
3.程序
using system;
using system.io.ports;
using system.text;
using system.threading;
namespace serialportterminal
{
class program
{
private static serialport _serialport;
private static bool _continue = true;
static void main(string[] args)
{
console.title = "串口通信终端";
console.outputencoding = encoding.utf8;
console.inputencoding = encoding.utf8;
try
{
// 列出可用串口
console.writeline("可用的串口列表:");
string[] ports = serialport.getportnames();
if (ports.length == 0)
{
console.writeline("未找到可用串口。按任意键退出...");
console.readkey();
return;
}
for (int i = 0; i < ports.length; i++)
{
console.writeline($"{i + 1}. {ports[i]}");
}
// 选择串口
int selectedindex = -1;
while (selectedindex < 0 || selectedindex >= ports.length)
{
console.write($"\n请选择串口 (1-{ports.length}): ");
if (int.tryparse(console.readline(), out int input) && input > 0 && input <= ports.length)
{
selectedindex = input - 1;
}
else
{
console.writeline("无效的选择，请重新输入。");
}
}
string selectedport = ports[selectedindex];
console.writeline($"已选择: {selectedport}");
// 创建并配置串口
_serialport = new serialport(selectedport)
{
baudrate = 9600,
parity = parity.none,
databits = 8,
stopbits = stopbits.one,
handshake = handshake.none,
readtimeout = 500,
writetimeout = 500,
encoding = encoding.utf8
};
// 设置数据接收事件处理
_serialport.datareceived += serialportdatareceived;
// 打开串口
_serialport.open();
console.writeline("串口已打开，配置: 9600,8,n,1");
console.writeline("输入要发送的文本 (输入 'exit' 退出):");
console.writeline("---------------------------------");
// 启动发送线程
thread writethread = new thread(write);
writethread.isbackground = true;
writethread.start();
// 等待退出
while (_continue)
{
thread.sleep(100);
}
// 关闭串口
if (_serialport.isopen)
{
_serialport.close();
}
console.writeline("串口已关闭。");
}
catch (exception ex)
{
console.writeline($"错误: {ex.message}");
console.writeline("按任意键退出...");
console.readkey();
}
}
private static void serialportdatareceived(object sender, serialdatareceivedeventargs e)
{
try
{
serialport sp = (serialport)sender;
string data = sp.readexisting();
if (!string.isnullorempty(data))
{
console.write($"[接收] {data}");
}
}
catch (exception ex)
{
console.writeline($"接收错误: {ex.message}");
}
}
private static void write()
{
while (_continue)
{
try
{
string message = console.readline();
if (message?.tolower() == "exit")
{
_continue = false;
return;
}
if (_serialport != null && _serialport.isopen)
{
_serialport.writeline(message);
console.writeline($"[发送] {message}");
}
}
catch (exception ex)
{
console.writeline($"发送错误: {ex.message}");
}
}
}
}
}4.结果
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