本文主要是介绍Python读写文本URL蓝牙WIFI自动连接电子名片位置坐标智能海报等NDEF标签，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本示例使用的发卡器：https://item.taobao.com/item.htm?id=615391857885&spm=a1z10.5-c.w4002-21818769070.11.60ad789erlonvk
近场通信（Near Field Communication，简称NFC），是一种新兴的技术，使用了NFC技术的设备（例如移动电话）可以在彼此靠近的情况下进行数据交换，是由非接触式射频识别（RFID）及互连互通技术整合演变而来的，通过在单一芯片上集成感应式读卡器、感应式卡片和点对点通信的功能，利用移动终端实现移动支付、电子票务、门禁、移动身份识别、防伪等应用。近场通信技术是由诺基亚（Nokia）、飞利浦（Philips）和索尼（Sony）共同制定的标准 ，在ISO 18092、ECMA 340和ETSI TS 102 190框架下推动标准化，同时也兼容应用广泛的ISO 14443 、Type-A、ISO 15693、B以及Felica标准非接触式智能卡 的基础架构。
NDEF 全称 NFC data exchange format 即 nfc 数据交换格式，是一种标准化的数据格式，可用于在任何兼容的NFC设备与另一个NFC设备或标签之间交换信息。数据格式由NDEF消息和NDEF记录组成 。
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication, QWidget, QDesktopWidget,QMessageBox
from PyQt5.QtGui import QFont
from NDEFTagTools import Ui_Frame
import sys
import struct # struct的pack函数把任意数据类型变成字符串
import ctypes # 调用DLL动态库要有这个引用#'为防止测试时忘记卡片密码，本系统统一使用密码为 197402020111 ，MifareClassic的密码6字节 ，forumtype2标签的密码是前4个字节，密码为 19740202
oldpicckey = bytes.fromhex('197402020111')
newpicckey = bytes.fromhex('197402020111')class MainWindow(QtWidgets.QMainWindow, Ui_Frame):def __init__(self, parent=None):super(MainWindow, self).__init__(parent)self.setupUi(self)self.pushButton_clearinf.clicked.connect(self.pushButton_clearinf_clicked)self.pushButton_beep.clicked.connect(self.pushButton_beep_clicked)self.pushButton_getdevnum.clicked.connect(self.pushButton_getdevnum_clicked)self.pushButton_clearbuff.clicked.connect(self.pushButton_clearbuff_clicked)self.pushButton_writetag.clicked.connect(self.pushButton_writetag_clicked)self.comboBox_seleapp.currentTextChanged.connect(self.comboBox_seleapp_currentindexchanged)self.pushButton_text.clicked.connect(self.pushButton_text_clicked)self.pushButton_App.clicked.connect(self.pushButton_App_clicked)self.pushButton_Url.clicked.connect(self.pushButton_Url_clicked)self.pushButton_Map.clicked.connect(self.pushButton_Map_clicked)self.pushButton_Bluetooth.clicked.connect(self.pushButton_Bluetooth_clicked)self.pushButton_Wifi.clicked.connect(self.pushButton_Wifi_clicked)self.pushButton_Card.clicked.connect(self.pushButton_Card_clicked)self.pushButton_Data.clicked.connect(self.pushButton_Data_clicked)self.pushButton_Call.clicked.connect(self.pushButton_Call_clicked)self.pushButton_readtag.clicked.connect(self.pushButton_readtag_clicked)self.pushButton_cleatag.clicked.connect(self.pushButton_cleatag_clicked)self.checkBox_later.toggled.connect(self.checkBox_later_toggled)def pushButton_clearinf_clicked(self):self.listWidget.clear()self.plainTextEdit_taginf.setPlainText('')def checkBox_later_toggled(self):if self.checkBox_later.isChecked():answ=QMessageBox.warning(self,'警告',' ISO15693协议标签锁定保护后就不能再解锁修改！请问确定要开启锁定保护功能吗？',QMessageBox.Yes|QMessageBox.No)if answ==QMessageBox.No:self.checkBox_later.setChecked(False)def ListErrInf(self,Errcode):if (Errcode == 8):self.ListBottom('错误代码：8，未寻到卡，请重新拿开卡后再放到感应区！')elif (Errcode == 1):self.ListBottom('错误代码：1，0~2块都没读出来，可能刷卡太块。但卡序列号已被读出来！')elif (Errcode == 2):self.ListBottom('错误代码：2，第0块已被读出，但1~2块读取失败。卡序列号已被读出来！')elif (Errcode == 3):self.ListBottom('错误代码：3，第0、1块已被读出，但2块读取失败。卡序列号已被读出来！')elif (Errcode == 9):self.ListBottom('错误代码：9，有多张卡在感应区，寻卡过程中防冲突失败，读序列吗错误！')elif (Errcode == 10):self.ListBottom('错误代码：10，该卡可能已被休眠，无法选中卡片！')elif (Errcode == 11):self.ListBottom('错误代码：11，密码装载失败！')elif (Errcode == 12):self.ListBottom('错误代码：12，标签密码认证错误！')elif (Errcode == 13):self.ListBottom('错误代码：13，读指定块失败，原因是刷卡太快或本块所对应的区还没通过密码认证！')elif (Errcode == 14):self.ListBottom('错误代码：14，写标签失败，可能需要验证密码！')elif (Errcode == 21):self.ListBottom('错误代码：21，没有动态库！')elif (Errcode == 22):self.ListBottom('错误代码：22，动态库或驱动程序异常！')elif (Errcode == 23):self.ListBottom('错误代码：23，(表示未检测到免驱动读写器！)(有驱动读写器表示驱动程序错误或未检测到有驱读写器！)')elif (Errcode == 24):self.ListBottom('错误代码：24，操作超时，一般是动态库没有反映！')elif (Errcode == 25):self.ListBottom('错误代码：25，发送字数不够！')elif (Errcode == 26):self.ListBottom('错误代码：26，发送的CRC错！')elif (Errcode == 27):self.ListBottom('错误代码：27，接收的字数不够！')elif (Errcode == 28):self.ListBottom('错误代码：28，接收的CRC错！')elif (Errcode == 45):self.ListBottom('错误代码：45，此卡不支持更改UID号或UID块已被锁定！')elif (Errcode == 46):self.ListBottom('错误代码：46，标签存储空间不足！')elif (Errcode == 254):self.ListBottom('错误代码：254，标签存储空间不足！')elif (Errcode == 255):self.ListBottom('错误代码：255，暂不支持长度大于255字节的信息写入！')else:self.ListBottom('未知错误，错误代码：' + str(Errcode))def comboBox_seleapp_currentindexchanged(self):packstr=self.comboBox_seleapp.currentText().strip()FieldsList = packstr.split('|')self.lineEdit_appname.setText(FieldsList[1])def ListBottom(self,dispinf):if self.listWidget.count()>50:self.listWidget.clear()self.listWidget.addItem(dispinf)self.listWidget.scrollToBottom()seleid = self.listWidget.count() - 1self.listWidget.item(seleid).setSelected(True)def pushButton_beep_clicked(self):status = Objdll.pcdbeep(50) % 256if status == 0:self.ListBottom("读写器已执行响声指令!")else:self.ListErrInf(status)def pushButton_getdevnum_clicked(self):devno = bytes(4) # 声明4个字节缓冲status = Objdll.pcdgetdevicenumber(devno) % 256if (status == 0):Objdll.pcdbeep(38)SerialNum = ''for num in range(0, len(devno)):SerialNum = SerialNum + '%03d' % (devno[num])if (num < len(devno) - 1):SerialNum = SerialNum + '-'self.ListBottom('读取设备编号成功，设备编号：' + SerialNum)else:self.ListErrInf(status)def pushButton_clearbuff_clicked(self):Objdll.tagbuf_forumtype4_clear()Objdll.tagbuf_clear()self.ListBottom('NDEF写卡缓冲区数据清除成功！' )def checkcardtype(self): #检测NFC标签类型myctrlword=0devno = bytes(4) # 声明4个字节缓冲mypiccserial= bytes(8) # 声明8个字节缓冲mypicckey=bytes(6) # 声明6个字节缓冲mypicdata=bytes(48)mypiccseriallen=bytes(2)try:status = Objdll.pcdgetdevicenumber(devno) % 256if (status == 0):status = Objdll.piccreadex_ntag(myctrlword, mypiccserial, mypicckey, 4, 1, mypicdata) % 256if (status == 0):return 1 #forumtype2 Ntag2标签else:status = Objdll.iso15693readex(myctrlword,0,1,1, mypiccserial,mypicdata) % 256if (status == 0):return 2 #forumtype5 15693标签else:myctrlword = 23mypicckey=bytes([255,255,255,255,255,255])status = Objdll.piccreadex(myctrlword,mypiccserial,0,1,mypicckey,mypicdata) % 256if (status == 0):return 3 #MifareClissic标签，出厂全新状态else:mypicckey = bytes([160, 161, 162, 163, 164, 165])status = Objdll.piccreadex(myctrlword, mypiccserial, 0, 1, mypicckey, mypicdata) % 256if (status == 0):return 3 #MifareClissic标签，已经写有NDEF数据else:myctrlword = 0status = Objdll.forumtype4request(myctrlword, mypiccserial, mypiccseriallen) % 256if (status == 0 or status == 52):return 4 #forumtype4 标签else:return -1 #其他未知型号标签else:return 23 #未连接到发卡器except:return 23def WriteTag(self,funcname): #将NDEF缓冲区数据写入各种不同类型的NFC标签，清除标签内NDEF数据mypiccserial = bytes(8)mypiccseriallen=bytes(1)try:cardtyep = self.checkcardtype() #判断发卡器上的标签类型if(cardtyep==1): #写forumtype2 Ntag2标签if self.checkBox_before.isChecked():myctrlword = 16else:myctrlword = 0status = Objdll.forumtype2_write_ndeftag(myctrlword, mypiccserial, oldpicckey) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'ForumType2，UID：'for num in range(0, 7):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('NDEF缓冲区数据写入标签成功！标签类型：'+cardno)if (self.checkBox_before.isChecked() and not self.checkBox_later.isChecked()) or (not self.checkBox_before.isChecked() and self.checkBox_later.isChecked() or (self.checkBox_before.isChecked() and self.checkBox_later.isChecked())):self.NtagkeyEn()else:self.ListErrInf(status)elif(cardtyep==2): #写forumtype5 15693标签myctrlword = 0afi=0status = Objdll.forumtype5_write_ndeftag(myctrlword,afi, mypiccserial) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'ForumType5，UID：'for num in range(0, 8):cardno = cardno + '%02X' % (mypiccserial[num])if self.checkBox_later.isChecked(): #15693卡锁定块数据后只能读取不可再修改，为防止卡片锁死，请谨慎锁定Objdll.iso15693lockblock(0,1,mypiccserial)self.ListBottom('NDEF缓冲区数据写入标签成功！标签类型：' + cardno)else:self.ListErrInf(status)elif (cardtyep == 3): # 写MifareClassic标签if(funcname=='NDEF_Clear'):if self.checkBox_before.isChecked():myctrlword = 210else:myctrlword = 146status = Objdll.piccclear_ndeftag(myctrlword, mypiccserial, oldpicckey) % 256else:if self.checkBox_before.isChecked():myctrlword = 210else:myctrlword = 146if self.checkBox_later.isChecked(): #写标签后给标签加密保护myctrlword=myctrlword+4status = Objdll.piccwrite_ndeftag(myctrlword, mypiccserial, oldpicckey,newpicckey) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'MifareClass，UID：'for num in range(0, 4):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('NDEF缓冲区数据写入标签成功！标签类型：' + cardno)else:self.ListErrInf(status)elif(cardtyep==4): #写forumtype4 标签if self.checkBox_before.isChecked():myctrlword = 64else:myctrlword = 0status = Objdll.forumtype4_write_ndeftag(myctrlword, mypiccserial,mypiccseriallen,newpicckey) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'ForumType4，UID：'for num in range(0, mypiccseriallen[0]):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('NDEF缓冲区数据写入标签成功！标签类型：' + cardno)else:self.ListErrInf(status)elif (cardtyep == 23):self.ListErrInf(23)else:self.ListErrInf(8)except:self.ListErrInf(8)def ReadTag(self,funcname): # 读取各种不同类型的NFC标签的NDEF数据mypiccserial = bytes(8)mypiccseriallen = bytes(1)mypiccdata = bytes(2048)revstrlen = bytes(2)recordnumber = bytes(2)try:cardtyep = self.checkcardtype() #判断发卡器上的标签类型if (cardtyep == 1): # 读forumtype2 Ntag2标签if self.checkBox_before.isChecked():myctrlword = 16else:myctrlword = 0status = Objdll.forumtype2_read_ndeftag(myctrlword, mypiccserial, oldpicckey) % 256if(status==0):Objdll.pcdbeep(38)cardno = 'ForumType2，UID：'for num in range(0, 7):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('读取NDEF标签数据成功！标签类型：' + cardno)else:self.ListErrInf(status)elif(cardtyep==2): #读forumtype5 15693标签myctrlword = 0afi=0status = Objdll.forumtype5_read_ndeftag(myctrlword,afi, mypiccserial) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'ForumType5,'for num in range(0, 8):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('读取NDEF标签数据成功！标签类型：' + cardno)else:self.ListErrInf(status)elif (cardtyep == 3): # 读MifareClassic标签if self.checkBox_before.isChecked():myctrlword = 208else:myctrlword = 144status = Objdll.piccread_ndeftag(myctrlword, mypiccserial, oldpicckey) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'MifareClass,'for num in range(0, 4):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('读取NDEF标签数据成功！标签类型：' + cardno)else:self.ListErrInf(status)elif(cardtyep==4): #读forumtype4 标签if self.checkBox_before.isChecked():myctrlword = 64else:myctrlword = 0status = Objdll.forumtype4_read_ndeftag(myctrlword, mypiccserial,mypiccseriallen,oldpicckey) % 256if (status == 0):Objdll.pcdbeep(38)cardno = 'ForumType4,'for num in range(0, mypiccseriallen[0]):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('读取NDEF标签数据成功！标签类型：' + cardno)else:self.ListErrInf(status)elif (cardtyep == 23):self.ListErrInf(23)else:self.ListErrInf(8)if (status == 0):Objdll.tagbuf_read(mypiccdata,revstrlen,recordnumber)strlen=revstrlen[0]+revstrlen[1]*256strinf=mypiccdata[0:strlen]ndefstr=strinf.decode('gbk')self.plainTextEdit_taginf.setPlainText(ndefstr)except:self.ListErrInf(8)def NtagkeyEn(self): #开启或关闭Ntag标签的密钥保护功能mypiccserial=bytes(8)if self.checkBox_before.isChecked(): #操作已经加密保护的ntag2x卡myctrlword=16else:myctrlword=0if self.checkBox_later.isChecked(): #需要开启Ntag卡的加密保护功能mypiccdata=bytes.fromhex('0000000400000000')mypiccdata=mypiccdata + newpicckey[0:4]mypiccdata = mypiccdata +bytes.fromhex('16160000')myctrlword=myctrlword+7status = Objdll.piccinit_ntag(myctrlword, mypiccserial, oldpicckey, mypiccdata)if status == 0:cardno = 'ForumType2，UID：'for num in range(0, 7):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('NDEF标签加密锁定保护成功！标签类型：' + cardno)else:self.ListBottom('NDEF标签加密锁定保护失败！错误代码%d：' %(status))else:mypiccdata = bytes.fromhex('000000FF000000000000000000000000') #关闭Ntag卡的密钥保护功能myctrlword = myctrlword + 3status=Objdll.piccinit_ntag(myctrlword,mypiccserial,oldpicckey,mypiccdata)if status == 0:cardno = 'ForumType2，UID：'for num in range(0, 7):cardno = cardno + '%02X' % (mypiccserial[num])self.ListBottom('NDEF标签解密去除锁定保护成功！标签类型：' + cardno)else:self.ListBottom('NDEF标签解密去除锁定保护失败！错误代码%d：' %(status))def pushButton_writetag_clicked(self):self.WriteTag('NDEF缓冲区数据')def pushButton_text_clicked(self):languagecodestr = "en".encode('gbk')textstr=self.lineEdit_text.text().strip().encode('gbk')if len(textstr)<1:QMessageBox.critical(self,'提示','请输入要加入写卡缓冲区的文本信息！',QMessageBox.Yes)self.lineEdit_text.setFocus()returnelse:status = Objdll.tagbuf_addtext(languagecodestr, len(languagecodestr), textstr, len(textstr)) % 256if status == 0:self.ListBottom("文本信息加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("文本信息加入NDEF写卡缓冲区失败！")def pushButton_App_clicked(self):packagestr = self.lineEdit_appname.text().strip().encode('gbk')if len(packagestr)<1:QMessageBox.critical(self,'提示','请输入要加入写卡缓冲区的自启动APP程序包名！',QMessageBox.Yes)self.lineEdit_appname.setFocus()returnelse:status = Objdll.tagbuf_addapp(packagestr, len(packagestr)) % 256if status == 0:self.ListBottom("自启动APP名称加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("自启动APP名称加入NDEF写卡缓冲区失败！")def pushButton_Url_clicked(self):languagecodestr = "en".encode('gbk')titlestr=self.lineEdit_title.text().strip().encode('gbk')uriheaderindex = self.comboBox_headindex.currentIndex()uristr=self.lineEdit_uri.text().strip().encode('gbk')if len(uristr)<1:QMessageBox.critical(self,'提示','请输入要加入写卡缓冲区的网址URI！',QMessageBox.Yes)self.lineEdit_uri.setFocus()returnelse:status = Objdll.tagbuf_adduri(languagecodestr, len(languagecodestr), titlestr, len(titlestr), uriheaderindex,uristr, len(uristr)) % 256if status == 0:self.ListBottom("网址URL加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("网址URL加入NDEF写卡缓冲区失败！")def pushButton_Map_clicked(self):languagecodestr = "en".encode('gbk')titlestr=self.lineEdit_mapname.text().strip().encode('gbk')latitude=self.lineEdit_latitude.text().strip()longitude=self.lineEdit_longitude.text().strip()mapcoord = ("geo:" + latitude + "," + longitude).encode('gbk')status = Objdll.tagbuf_adduri(languagecodestr, len(languagecodestr), titlestr, len(titlestr), 0, mapcoord,len(mapcoord)) % 256if status == 0:self.ListBottom("地图坐标加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("地图坐标加入NDEF写卡缓冲区失败！")def pushButton_Bluetooth_clicked(self):try:macname = self.lineEdit_Bluetoothname.text().strip() .encode('gbk')maclist = self.lineEdit_Bluetoothmac.text().strip().split(':')if (len(maclist) == 6):macbuf = bytes([eval('0x' + maclist[0]), eval('0x' + maclist[1]), eval('0x' + maclist[2]), eval('0x' + maclist[3]),eval('0x' + maclist[4]), eval('0x' + maclist[5])])status = Objdll.tagbuf_addbluetooth(macname, len(macname), macbuf) % 256if status == 0:self.ListBottom("蓝牙连接信息加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("蓝牙连接信息加入NDEF写卡缓冲区失败！")else:QMessageBox.critical(self, '提示', '蓝牙MAC地址输入错误！', QMessageBox.Yes)self.lineEdit_Bluetoothmac.setFocus()except:QMessageBox.critical(self, '提示', '蓝牙MAC地址输入错误！', QMessageBox.Yes)self.lineEdit_Bluetoothmac.setFocus()def pushButton_Wifi_clicked(self):ssidstr = self.lineEdit_hostname.text().strip().encode('gbk')if len(ssidstr)<1:QMessageBox.critical(self,'提示','请输入要加入写卡缓冲区的热点名称！',QMessageBox.Yes)self.lineEdit_hostname.setFocus()returnauthtype=self.comboBox_auth.currentIndex()crypttype=self.comboBox_Calculation.currentIndex()keystr=self.lineEdit_password.text().strip().encode('gbk')status = Objdll.tagbuf_addwifi(ssidstr, len(ssidstr), authtype, crypttype, keystr, len(keystr)) % 256if status == 0:self.ListBottom("WIFI热点信息加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("WIFI热点信息加入NDEF写卡缓冲区失败！")def pushButton_Card_clicked(self):infostr = "BEGIN:VCARD" + "\n"infostr = infostr + "VERSION:3.0" + "\n"infostr = infostr + "FN:"+self.lineEdit_name.text().strip()+ "\n"infostr = infostr + "TEL:" +self.lineEdit_tel.text().strip()+ "\n"infostr = infostr + "ORG:" +self.lineEdit_unilname.text().strip()+ "\n"infostr = infostr + "ADR:" +self.lineEdit_address.text().strip()+ "\n"infostr = infostr + "EMAIL:" +self.lineEdit_email.text().strip()+ "\n"infostr = infostr + "URL:" +self.lineEdit_net.text().strip()+ "\n"infostr = infostr + "END:VCARD"businesscard = infostr.encode('gbk')status = Objdll.tagbuf_addbusinesscard(businesscard, len(businesscard)) % 256if status == 0:self.ListBottom("电子名片信息加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("电子名片信息加入NDEF写卡缓冲区失败！")def pushButton_Data_clicked(self):typestr = self.lineEdit_datatype.text().strip().encode('gbk')datastr = self.lineEdit_data.text().strip().encode('gbk')status = Objdll.tagbuf_adddata(typestr, len(typestr), datastr, len(datastr)) % 256if status == 0:self.ListBottom("自定义数据类型加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("自定义数据类型加入NDEF写卡缓冲区失败！")def pushButton_Call_clicked(self):languagecodestr = "en".encode('gbk')titlestr = "".encode('gbk')CallNumber=self.lineEdit_callnum.text().strip().encode('gbk')status = Objdll.tagbuf_adduri(languagecodestr, len(languagecodestr), titlestr, len(titlestr), 5, CallNumber,len(CallNumber)) % 256if status == 0:self.ListBottom("呼叫电话加入NDEF写卡缓冲区成功，可继续添加标签信息到缓冲区，也可以将缓冲区现有信息写入标签!")else:self.ListBottom("呼叫电话加入NDEF写卡缓冲区失败！")def pushButton_readtag_clicked(self):#Objdll.tagbuf_forumtype4_clear()#Objdll.tagbuf_clear()self.plainTextEdit_taginf.setPlainText('')self.ReadTag('NDEF_ReadInfo')def pushButton_cleatag_clicked(self):Objdll.tagbuf_forumtype4_clear()Objdll.tagbuf_clear()self.checkBox_later.setChecked(False)self.WriteTag('NDEF_Clear')if __name__ == "__main__":app = QtWidgets.QApplication(sys.argv)mainWindow = MainWindow()screen = QDesktopWidget().screenGeometry()size = mainWindow.geometry()# 获得窗口相关坐标newLeft = (screen.width() - size.width()) // 2newTop = (screen.height() - size.height()) // 2# 移动窗口使其居中mainWindow.pushButton_clearbuff.setStyleSheet("color:red;")mainWindow.pushButton_writetag.setStyleSheet("color:blue;")mainWindow.move(newLeft, newTop)if sys.platform == 'linux' or sys.platform == 'mac':# Linux加载当前目录下的so库dllfile = sys.path[0] + '/libOURMIFARE.so'Objdll = ctypes.cdll.LoadLibrary(dllfile)else:# windows系统加载当前目录下的DLL库dllfile = sys.path[0] + '\OUR_MIFARE.dll'Objdll = ctypes.windll.LoadLibrary(dllfile)mainWindow.show()sys.exit(app.exec_())
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