public partial class ReadID : Form    {        public ReadID()        {            InitializeComponent();        }        /// <summary>        /// 身份证阅读类        /// </summary>        class CVRSDK        {            [DllImport("termb.dll", EntryPoint = "CVR_InitComm", CharSet = CharSet.Auto, SetLastError = false)]            public static extern int CVR_InitComm(int Port);//声明外部的标准动态库, 跟Win32API是一样的            [DllImport("termb.dll", EntryPoint = "CVR_Authenticate", CharSet = CharSet.Auto, SetLastError = false)]            public static extern int CVR_Authenticate();            [DllImport("termb.dll", EntryPoint = "CVR_Read_Content", CharSet = CharSet.Auto, SetLastError = false)]            public static extern int CVR_Read_Content(int Active);            [DllImport("termb.dll", EntryPoint = "CVR_CloseComm", CharSet = CharSet.Auto, SetLastError = false)]            public static extern int CVR_CloseComm();            [DllImport("termb.dll", EntryPoint = "GetPeopleName", CharSet = CharSet.Ansi, SetLastError = false)]            public static extern unsafe int GetPeopleName(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetPeopleNation", CharSet = CharSet.Ansi, SetLastError = false)]            public static extern int GetPeopleNation(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetPeopleBirthday", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetPeopleBirthday(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetPeopleAddress", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetPeopleAddress(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetPeopleIDCode", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetPeopleIDCode(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetDepartment", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetDepartment(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetStartDate", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetStartDate(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetEndDate", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetEndDate(ref byte strTmp, ref int strLen);            [DllImport("termb.dll", EntryPoint = "GetPeopleSex", CharSet = CharSet.Ansi, SetLastError = false, CallingConvention = CallingConvention.StdCall)]            public static extern int GetPeopleSex(ref byte strTmp, ref int strLen);        }        /// <summary>        /// 初始化加载数据        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>       private void ReadID_Load(object sender, EventArgs e)        {            //启动读卡器            try                {                    //初始化启动身份证读卡器                    bool isok = this.InitCRVSDK();                    if (!isok)  { return; }                //是否放置好卡片                    int authenticate = CVRSDK.CVR_Authenticate();                    if (authenticate == 1)                    {                        //是否读到内容                        int readContent = CVRSDK.CVR_Read_Content(4);                        if (readContent == 1)                        {                            FillData();                        }                    }                    else                    {                        //关闭读卡器                        CVRSDK.CVR_CloseComm();                    }                }                catch                {                }            }                /// <summary>        /// //初始化读卡器        /// </summary>        /// <returns></returns>  public bool InitCRVSDK()      {          try          {              int iRetUSB = 0, iRetCOM = 0;              int iPort;              // USB 口 1001~1016              for (iPort = 1001; iPort <= 1016; iPort++)              {                  iRetUSB = CVRSDK.CVR_InitComm(iPort);                  if (iRetUSB == 1)                  {                      break;                  }              }              //连接串口 COM1~COM16              for (iPort = 1; iPort <= 4; iPort++)              {                  iRetCOM = CVRSDK.CVR_InitComm(iPort);                  if (iRetCOM == 1)                  {                      break;                    }              }              if ((iRetCOM == 1) || (iRetUSB == 1))              {                   //MessageBox.Show("读卡器初始化成功！");                  return true;              }              else              {                 // MessageBox.Show("未连接读卡器！");                  return false;//启动失败就不启动定时器              }          }          catch          {              return false;          }      }        /// <summary>        /// // 填充数据        /// </summary>         public void FillData()              {                  try                  {                      //相片 zp.bmp(解码)                      this.pic_Photo.ImageLocation = Application.StartupPath + "\\zp.bmp";                      byte[] name = new byte[30];                      int length = 30;                      //得到姓名信息 //得到性别信息 //得到民族信息 //得到出生日期 //得到地址信息 //得到卡号信息                      //得到发证机关信息 //得到有效开始日期（签发日期） //得到有效截止日期 //读取设备模块号码 参数 返回值 strTmp[out]:                      CVRSDK.GetPeopleName(ref name[0], ref length);                      //MessageBox.Show();                      byte[] number = new byte[30];                      length = 36;                      CVRSDK.GetPeopleIDCode(ref number[0], ref length);                      byte[] people = new byte[30];                      length = 3;                      CVRSDK.GetPeopleNation(ref people[0], ref length);                      byte[] validtermOfStart = new byte[30];                      length = 16;                      CVRSDK.GetStartDate(ref validtermOfStart[0], ref length);                      byte[] birthday = new byte[30];                      length = 16;                      CVRSDK.GetPeopleBirthday(ref birthday[0], ref length);                      byte[] address = new byte[30];                      length = 70;                      CVRSDK.GetPeopleAddress(ref address[0], ref length);                      byte[] validtermOfEnd = new byte[30];                      length = 16;                      CVRSDK.GetEndDate(ref validtermOfEnd[0], ref length);                      byte[] signdate = new byte[30];                      length = 30;                      CVRSDK.GetDepartment(ref signdate[0], ref length);                      byte[] sex = new byte[30];                      length = 3;                      CVRSDK.GetPeopleSex(ref sex[0], ref length);                      this.txt_Address.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(address);                      //this.txt_RegAddrres.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(address);                      this.cbo_Sex.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(sex);                      this.dt_birth.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(birthday);                    //  lblDept.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(signdate);                      this.txt_IdCard.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(number);                      this.txt_Name.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(name);                      this.cbo_Nation.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(people);                     // lblValidDate.Text = System.Text.Encoding.GetEncoding("GB2312").GetString(validtermOfStart) + "-" + System.Text.Encoding.GetEncoding("GB2312").GetString(validtermOfEnd);                  }                  catch                  {                              }            }           }        }