Private serialPort As SerialPort '定义 Public Function CreateSerialPort() As String Dim strWeights As String = "" Dim strData As String = "" Dim bSetPointNum As Double = 0.0 If serialPort IsNot Nothing Then
The C++ implementation of protocol buffers returns the byte and string types as std::string. This structure contains a length function telling you how long the corresponding data is (as well as the data itself.) Thus there is no special significance