我写了一个从串口读取的程序。在安装了Visual Studio的计算机上运行程序没问题。一切都好。但是当我将release文件夹复制到另一个程序并运行它时,我有一个错误System.IO.IOException
。我使用此代码从串口读取数据。
byte[] buffer = new byte[42];
int readBytes = 0;
int totalReadBytes = 0;
int offset = 0;
int remaining = 41;
try
{
do
{
readBytes = serial.Read(buffer, offset, remaining);
offset += readBytes;
remaining -= readBytes;
totalReadBytes += readBytes;
}
while (remaining > 0 && readBytes > 0);
}
catch (TimeoutException ex)
{
Array.Resize(ref buffer, totalReadBytes);
}
UTF8Encoding enc = new UTF8Encoding();
recieved_data = enc.GetString(buffer, 27, 5);
Dispatcher.Invoke(DispatcherPriority.Send, new UpdateUiTextDelegate(WriteData), recieved_data);
我该如何解决这个问题?
答案 0 :(得分:1)
您似乎正在读取比端口传输的更多字节,您应该检查BytesToRead
属性以检查它们的数量。
byte[] buffer = new byte[port.BytesToRead];
int readBytes = 0;
int totalReadBytes = 0;
int offset = 0;
int remaining = port.BytesToRead;
try
{
do
{
readBytes = serial.Read(buffer, offset, remaining);
offset += readBytes;
remaining -= readBytes;
totalReadBytes += readBytes;
}
while (remaining > 0 && readBytes > 0);
}
catch (TimeoutException ex)
{
Array.Resize(ref buffer, totalReadBytes);
}
答案 1 :(得分:0)