第一步：新建一個qt C++項目

在此需要注意，名稱和路徑不能有中文。

第二步：添加控件完成UI布局

IC讀寫器讀寫IC卡數(shù)據(jù)塊

第三步：開始寫代碼

使設(shè)備發(fā)出滴滴響聲

#define BLOCK0_EN   0x01
#define BLOCK1_EN   0x02
#define BLOCK2_EN   0x04
#define NEEDSERIAL  0x08
#define EXTERNKEY   0x10
#define NEEDHALT   0x20
 
//#define NEEDSERIAL  0x08
#define EXTERNKEY   0x10
 
 
//讓讀寫器發(fā)出聲音
typedef  unsigned char (*pcdbeep)(unsigned long xms);
 
//返回本讀寫器獨一無二的設(shè)備編號
typedef  unsigned char (*pcdgetdevicenumber)(unsigned long devicenumber);
 
//輕松讀卡
typedef unsigned char (*piccreadex)(unsigned char ctrlword,unsigned char *serial,unsigned char area,unsigned char keyA1B0,unsigned char *picckey,unsigned char *piccdata0_2);
 
//輕松寫卡
typedef unsigned char (*piccwriteex)(unsigned char ctrlword,unsigned char *serial,unsigned char area, unsigned char keyA1B0,unsigned char *picckey,unsigned char *piccdata0_2);
 
//改單區(qū)密碼
typedef unsigned char (*piccchangesinglekeyex)(unsigned char ctrlword,unsigned char *serial,unsigned char area,unsigned char keyA1B0,unsigned char *piccoldkey,unsigned char *piccdata);
 
//讀出一塊的數(shù)據(jù)，也就是16個字節(jié)
typedef unsigned char (*piccread)(unsigned char block,unsigned char *piccdata);
 
//檢測輸入數(shù)據(jù)是否為16進制數(shù)
static bool checkinput(QString inputstr){
    QString inputyes="0123456789abcdefABCDEF";
    for(int i=0;isetupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
 
 
void MainWindow::on_pushButton_4_clicked()//讓設(shè)備發(fā)出聲響
{
    unsigned char result;
    QLibrary mylib("OUR_MIFARE.dll");
    if (!mylib.load())                //判斷是否正確加載
    {
        QMessageBox::information(NULL, "提示", "動態(tài)庫沒裝載！原因是動態(tài)庫OUR_MIFARE.dll沒放在生成exe文件相同目錄下！");
        return;
    }
 
    pcdbeep mypcdbeep = (pcdbeep)mylib.resolve("pcdbeep");
    if (mypcdbeep == NULL)                   //是否成功連接上 idr_beep()函數(shù)
    {
        mylib.unload();
        QMessageBox::information(NULL, "提示", "請檢查函數(shù)名是否正確！");
        return;
 
    }
 
 
    result = mypcdbeep(30);      //這里函數(shù)指針調(diào)用dll中的idr_beep（) 函數(shù)
    mylib.unload();
    if(result > 0)
    {
        if(result == 23)
        {
            QMessageBox::information(NULL, "提示", "機器沒連上或者驅(qū)動沒下載");
        }
        else
        {
            QMessageBox::information(NULL, "提示", "錯誤代碼：" + QString::number(result));
        };
    }
    //qDebug()

	

	讀卡功能

	
void MainWindow::on_pushButton_3_clicked()//輕松讀卡
{
   unsigned char ctrlword;//控制字
   unsigned char serial[4];//可寫數(shù)組
   unsigned char area;//讀出的區(qū)號

   unsigned char keyA1B0;//AB密碼認證
   unsigned char picckey[6];//存放卡密碼的數(shù)組
   unsigned char piccdata0_2[48];//下標0~15存放作為讀出的塊0的數(shù)據(jù)，下標16~31存放作為讀出的塊1的數(shù)據(jù)，下標32~47存放作為讀出的塊2的數(shù)據(jù)

   unsigned char status;//返回
unsigned char status1;
   unsigned char result;
   QString piccdata[16];  //卡數(shù)據(jù)緩沖

  //unsigned char myareano = ui->lineEdit_5 ； '指定為第8區(qū)

   //以下控制字含義：讀塊0、塊1、塊2，僅讀指定序列號的卡，需要每次指定密碼
   if (ui->radioButton->isChecked())
   {

       ctrlword = BLOCK0_EN + BLOCK1_EN + BLOCK2_EN + EXTERNKEY;

   }
   else
   {//內(nèi)部密碼
       ctrlword = BLOCK0_EN + BLOCK1_EN + BLOCK2_EN;
   }



   area = ui->comboBox->currentText().toUShort();

   keyA1B0 = 1;//用A密碼

   //qDebug()text().mid(0,2);
   //qDebug()text().mid(2,2);

   // qDebug()text().mid(2,2);
   // qDebug()text().mid(2,2);

   QString Key_str = ui->lineEdit->text().trimmed();


   if(Key_str.length() < 12)
   {
       QMessageBox::information(NULL, "提示", "密碼長度不夠12位！");
       ui-?>lineEdit->setFocus();
       return;

   }

   char c;
   for (int var = 0; var < 12; ++var)
   {
       c = Key_str.at(var).toLatin1();
       if(!((('0' <= c) && (c <= '9')) || (('A' <= c) && (c <= 'F')) || (('a' <= c) && (c <= 'f'))))
       {
         QMessageBox::information(NULL, "提示", "密碼輸入字符不正確！");
         //ui-?>lineEdit->setSelection(var,1);
         ui->lineEdit->setSelection(var,1);
         ui->lineEdit->setFocus();
         return;
       }
   }


   bool ok;
//    picckey[0]=(unsigned char)(Key_str.mid(0,2).toUShort(nullptr,16));
//    picckey[1] = Key_str.mid(2,2).toShort();
//    picckey[2] = Key_str.mid(4,2).toShort();
//    picckey[3] = Key_str.mid(6,2).toShort();
//    picckey[4] = Key_str.mid(8,2).toShort();
//    picckey[5] = Key_str.mid(10,2).toShort();

   for(int i = 0; i < 6; i++)
   {
       picckey[i]=QString(Key_str.mid(i*2,2)).toInt(&ok,16);
   }



   QLibrary mylib("OUR_MIFARE.dll");
   if (!mylib.load())                //判斷是否正確加載
   {
       QMessageBox::information(NULL, "提示", "動態(tài)庫沒裝載！原因是動態(tài)庫OUR_MIFARE.dll沒放在生成exe文件相同目錄下！");
       return;
   }

   piccreadex mypiccreadex = (piccreadex)mylib.resolve("piccreadex");

   status = mypiccreadex(ctrlword,serial,area,keyA1B0,picckey,piccdata0_2);

   if(status == 0)
   {
       //qDebug()setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X",picckey[0],picckey[1],picckey[2],picckey[3],picckey[4],picckey[5],picckey[6],serial[1],serial[2],serial[3]));
       ui->lineEdit_2->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[0],piccdata0_2[1],piccdata0_2[2],piccdata0_2[3],piccdata0_2[4],piccdata0_2[5],piccdata0_2[6],piccdata0_2[7],piccdata0_2[8],piccdata0_2[9],piccdata0_2[10],piccdata0_2[11],piccdata0_2[12],piccdata0_2[13],piccdata0_2[14],piccdata0_2[15]));
       ui->lineEdit_3->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[16],piccdata0_2[17],piccdata0_2[18],piccdata0_2[19],piccdata0_2[20],piccdata0_2[21],piccdata0_2[22],piccdata0_2[23],piccdata0_2[24],piccdata0_2[25],piccdata0_2[26],piccdata0_2[27],piccdata0_2[28],piccdata0_2[29],piccdata0_2[30],piccdata0_2[31]));
       ui->lineEdit_4->setText(QString::asprintf("%02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X ",piccdata0_2[32],piccdata0_2[33],piccdata0_2[34],piccdata0_2[35],piccdata0_2[36],piccdata0_2[37],piccdata0_2[38],piccdata0_2[39],piccdata0_2[40],piccdata0_2[41],piccdata0_2[42],piccdata0_2[43],piccdata0_2[44],piccdata0_2[45],piccdata0_2[46],piccdata0_2[47]));


       piccread mypiccread = (piccread)mylib.resolve("piccread");
       //typedef unsigned char (*piccread)(unsigned char block,unsigned char *piccdata);

      status1 = piccread(area * 4 + 3,piccdata);

       pcdbeep mypcdbeep = (pcdbeep)mylib.resolve("pcdbeep");
       if (mypcdbeep == NULL)                   //是否成功連接上 idr_beep()函數(shù)
       {
         mylib.unload();
         QMessageBox::information(NULL, "提示", "請檢查函數(shù)名是否正確！");
         return;

       }


       result = mypcdbeep(30);      //這里函數(shù)指針調(diào)用dll中的idr_beep（) 函數(shù)
       mylib.unload();



   }
   else if(status == 8)
   {
       ui->lineEdit_2->clear();
       ui->lineEdit_3->clear();
       ui->lineEdit_4->clear();
       QMessageBox::information(NULL, "提示", "尋卡錯誤，根本就沒有卡在感應(yīng)區(qū)");

   }
   else if(status == 12)
   {
       ui->lineEdit_2->clear();
       ui->lineEdit_3->clear();
       ui->lineEdit_4->clear();
       QMessageBox::information(NULL, "提示", "密碼認證失敗");

   }
   //qDebug()