C#版的短信发送开发,暂是通过win32api进行短信发送。但存在一问题，该问题是由于 win32api 串口只能打开10个以下，10个以上串口无法打开-C# version of the text message development, suspense is carried out through text messages sent win32api. But there is a problem, the problem is that the win32api serial port