在visual studio中使用读取串口数据的函数来读取 GPS字符串代码

以下是在 Visual Studio 中使用读取串口数据的函数来读取 GPS 字符串的代码：

#include <Windows.h>
#include <string>
#include <iostream>
using namespace std;

int main()
{
    HANDLE hComm;
    DWORD dwBytesRead;

    // Open the serial port
    hComm = CreateFile("COM1", GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
    if (hComm == INVALID_HANDLE_VALUE) {
        cout << "Error in opening serial port" << endl;
        return 0;
    }

    // Initialize the DCB structure
    DCB dcb;
    SecureZeroMemory(&dcb, sizeof(DCB));
    dcb.DCBlength = sizeof(DCB);

    // Get the serial port's configuration
    if (!GetCommState(hComm, &dcb)) {
        cout << "Error in getting the serial port's configuration" << endl;
        return 0;
    }

    // Set the serial port's configuration
    dcb.BaudRate = CBR_9600;
    dcb.ByteSize = 8;
    dcb.Parity = NOPARITY;
    dcb.StopBits = ONESTOPBIT;
    if (!SetCommState(hComm, &dcb)) {
        cout << "Error in setting the serial port's configuration" << endl;
        return 0;
    }

    // Initialize the timeouts structure
    COMMTIMEOUTS timeouts;
    SecureZeroMemory(&timeouts, sizeof(COMMTIMEOUTS));
    timeouts.ReadIntervalTimeout = 50;
    timeouts.ReadTotalTimeoutConstant = 50;
    timeouts.ReadTotalTimeoutMultiplier = 10;
    if (!SetCommTimeouts(hComm, &timeouts)) {
        cout << "Error in setting the serial port's timeouts" << endl;
        return 0;
    }

    // Read the GPS data from the serial port
    char data[100];
    string gpsData;
    while (true) {
        if (!ReadFile(hComm, data, sizeof(data), &dwBytesRead, NULL)) {
            cout << "Error in reading from the serial port" << endl;
            return 0;
        }
        if (dwBytesRead > 0) {
            gpsData.append(data, dwBytesRead);
            if (gpsData.find("\n") != string::npos) {
                cout << gpsData;
                gpsData.clear();
            }
        }
    }

    // Close the serial port
    CloseHandle(hComm);

    return 0;
}

请注意，上面的代码仅仅是演示如何使用串口读取函数读取 GPS 字符串，如果您要使用这个代码，需要根据实际情况进行修改和完善。