ID卡读取问题

[jiyfeng1986]

private void button11_Click(object sender, EventArgs e)
        {
            Boolean bRet=false;
            byte[] utmp = new byte[16];
            byte[] ulen = new byte[1];
            long nSerialNo;
            Int32 ss;
            string stmp;
            bRet = XZX_LookupCard(2, ref utmp[0], ref ulen[0]);
            if (bRet)
            {
                // EM卡卡号为5个字节，具体可按需要自行截取
                nSerialNo = utmp[0]*256*256*256 + utmp[1] * 256 * 256 + utmp[2] * 256 + utmp[3];
                stmp = "寻找EM卡成功，卡号为： " + Convert.ToString(nSerialNo);
                listBox1.Items.Add(stmp);
            }
            else
            {
                listBox1.Items.Add("寻找EM卡失败");
            }
        }

[jiyfeng1986]

引用 1 楼 jiyfeng1986 的回复:

读出来的是 2013280749

实际是0003796444

[jiyfeng1986]

[code=csharp] utmp[0] = 120 utmp[1]=0 utmp[2]=57 utmp[3]=237 utmp[3]=220 [/code4]

[jiyfeng1986]

读出来的是 2013280749