static int icount=0; // reads analog input channel ptMAIVoltageIn.NumChan = 5; ptMAIVoltageIn.StartChan = usStartChan; for (i=0 ; i< ptMAIVoltageIn.NumChan ; i++) usGainCode[i+usStartChan] = DevFeatures.glGainList[usGainIndex[i+usStartChan]].usGainCde; ptMAIVoltageIn.GainArray = (USHORT far *) &usGainCode[usStartChan]; ptMAIVoltageIn.TrigMode = 0; // internal trigger ptMAIVoltageIn.VoltageArray = (FLOAT far *)&fVoltage[usStartChan]; if ((ErrCde = DRV_MAIVoltageIn(DriverHandle, (LPT_MAIVoltageIn)&ptMAIVoltageIn)) != 0) { DRV_GetErrorMessage(ErrCde,(LPSTR)szErrMsg); MessageBox("voltage input failure!", MB_OK); KillTimer(1); DRV_DeviceClose((LONG far *)&DriverHandle); } // Display Data m_sensor1=fVoltage[usStartChan]; m_sensor2=fVoltage[usStartChan+1]; m_sensor3=fVoltage[usStartChan+2]; m_sensor4=fVoltage[usStartChan+3]; m_sensor5=fVoltage[usStartChan+4]; UpdateData(false); //control times icount++; if(icount==10) KillTimer(1); //save data FILE *fp; fp=fopen("d:\\sensor.txt","a+t"); for(int m=0;m<5;m++) fwrite(fVoltage,sizeof(float),5,fp); fclose(fp); 请问保存到文本文件里的数据为什么是乱码啊？？多谢指教！ 再就是用DMA方式编的程序为什么一点开始采集数据按钮程序就死锁啊？就是程序处于忙状态，没有反应。