如何构造缺省实数??
SetBaudRate(DWORD dwBaudRate=115200,Parity bParity=NoParity,BYTE StopBits=0,BYTE ByteSize=8)
在MFC下的工作区-->Add member Function 在funcion declaration中,COPY上面的declaration.
会有一个MessageBox弹出..this function's declaration will not match its definition.
declaration:"(SetBaudRate(DWORD dwBaudRate=115200,Parity bParity=NoParity,BYTE StopBits=0,BYTE ByteSize=8)"
Definition:"(SetBaudRate(DWORD dwBaudRate=115200)"