我正在从一个游戏（SharedMemoryMapped）阅读数据，一切正常，我得到了一圈的时间（毫秒），得到秒=毫秒/1000 f，
之后，我跟踪汽车的位置，直到1.000f，这意味着结束，我需要将一些数据保存到文件中，但lapTimeInSeconds在循环结束时不断变化，直到我得到所需的值（分钟：秒：毫秒）

while (true) {

//........code........

      // laptime
        float lapTimeInSeconds = (float) ((float)graphic.iCurrentTime / 1000.0f);
        printf("\rLAP: %.3f", lapTimeInSeconds);
        // save
        memcpy(&save_struct.lapTime_seconds, &lapTimeInSeconds, 4);
        memcpy(&save_struct.normalizedCarPosition, &graphic.normalizedCarPosition, 4);
        memcpy(&save_struct.gaz, &physics.gaz, 4);
        memcpy(&save_struct.brake, &physics.brake, 4);
        memcpy(&save_struct.speedKmh, &physics.speedKmh, 4);
        memcpy(&save_struct.steerAngle, &physics.steerAngle, 4);
        memcpy(&save_struct.gear, &physics.gear, 4);
        memcpy(&save_struct.carCoordiantes, &graphic.carCoordiantes, sizeof(save_struct.carCoordiantes));
    
        // write bytes into the file
        fwrite(&save_struct, sizeof(SaveStruct), 1, saveFile);
    
        if (graphic.normalizedCarPosition == 1) {
          fclose(saveFile);
          printf("\nFINAL LAP TIME: %.3f\n", lapTimeInSeconds); // HERE IS THE PROBLEM IT RESET TO 0.000 seconds, the VALUE GOT CHANGED AND SOMETIMES 0.654s 
          uint8_t seconds = (int) lapTimeInSeconds % 60;
          uint8_t minutes = lapTimeInSeconds / 60;
          uint16_t millisecond = (lapTimeInSeconds - ((minutes * 60) + seconds)) * 1000;
          std::string final_file_name = "laps/lap-" + std::to_string(lapCount) + "-" + std::to_string(minutes) + "-" + std::to_string(seconds) + "-" + std::to_string(millisecond) + ".lap";
          rename("laps/lap-not-completed.lap", final_file_name.c_str());
          lapCount++;
          saveFile = fopen("laps/lap-not-completed.lap", "wb");
        }

}

文件名变为0分钟、0秒、659毫秒

• 如何使lapTimeInSeconds不改变，直到我保存文件？！

谢谢你。