标签：nec 清空 tco 主线程 ons 参数 except sel 照片
之前一直不会python多线程，写这个程序的时候，发现不用多线程会陷入无限未响应状态。于是学了半天python多线程，但是在主函数里写的时候，发现一个问题，Ui主线程和工作线程没有分离，使用itchat等库的时候会堵塞主线程，换句话说PyQt中子线程不能操作GUI界面。之前写的多线程仍然属于Ui主线程，是其子线程，所以才造成未响应。
既然知道问题了，那就查资料解决问题，后来，在几篇博客上找到了解决办法
然后仿照第一篇博客，重写了QThread类，并借鉴第三篇博客，学会了PyQt多线程中的信号/槽机制，用来传递参数。
#!/usr/bin/env python3 # -*- coding: utf-8 -*- __author__ = ‘memgq‘ from PyQt5.QtCore import QThread,pyqtSignal import itchat import time,os import shutil import re from itchat.content import * class weChatWord(QThread): getMsgSignal = pyqtSignal(str) #pyqtSignal()必须写在__init__前面，里面可接收的参数类型挺多的，str,list,dict都支持 def __init__(self,parent=None): super(weChatWord,self).__init__(parent) self.msg_list=[] self.type_list=[‘Picture‘,‘Recording‘, ‘Attachment‘,‘Video‘] def clearList(self): ‘‘‘ 清空缓存消息和文件 :return: ‘‘‘ tm_now=time.time() len_list=len(self.msg_list) if len_list>0: for i in range(len_list): if tm_now-self.msg_list[i][‘msg_time‘]>121: if self.msg_list[i][‘msg_type‘] in self.type_list: try: os.remove(".\\BackUp\\"+self.msg_list[i][‘msg_content‘]) except Exception as e: print(e) finally: pass else:break self.msg_list=self.msg_list[i:] def run(self): ‘‘‘ 重写run()函数， :return: ‘‘‘ @itchat.msg_register([TEXT, PICTURE, MAP, CARD, SHARING, RECORDING, ATTACHMENT, VIDEO, FRIENDS], isFriendChat=True, isGroupChat=True) def getMsg(msg): ‘‘‘ 注册消息类型，并对不同类型的消息执行不用的操作 :param msg: :return: ‘‘‘ msg_dict={} # pprint.pprint(msg) msg_id = msg[‘MsgId‘] # 消息ID msg_time = msg[‘CreateTime‘] msg_url=None msg_group="" if (itchat.search_friends(userName=msg[‘FromUserName‘])): if itchat.search_friends(userName=msg[‘FromUserName‘])[‘RemarkName‘]: msg_from = itchat.search_friends(userName=msg[‘FromUserName‘])[‘RemarkName‘] # 消息发送人备注 elif itchat.search_friends(userName=msg[‘FromUserName‘])[‘NickName‘]: # 消息发送人昵称 msg_from = itchat.search_friends(userName=msg[‘FromUserName‘])[‘NickName‘] # 消息发送人昵称 else: msg_from = r"读取发送消息好友失败" else: msg_group = msg[‘User‘][‘NickName‘] msg_from = msg[‘ActualNickName‘] msg_type = msg[‘Type‘] if msg_type in [‘Text‘, ‘Friends‘,‘Sharing‘]: msg_content = msg[‘Text‘] msg_url = msg[‘Url‘] elif msg_type in self.type_list: msg_content=msg[‘FileName‘] msg[‘Text‘](msg[‘FileName‘]) shutil.move(msg_content,r‘.\\BackUp\\‘) elif msg[‘Type‘] == ‘Card‘: msg_content = msg[‘RecommendInfo‘][‘NickName‘] + r" 的名片" elif msg[‘Type‘] == ‘Map‘: x, y, location = re.search("<location x=\"(.*?)\" y=\"(.*?)\".*label=\"(.*?)\".*", msg[‘OriContent‘]).group(1, 2, 3) if location is None: msg_content = r"纬度->" + x.__str__() + " 经度->" + y.__str__() else: msg_content = r"" + location msg_dict={‘msg_id‘:msg_id,‘msg_time‘:msg_time,‘msg_from‘:msg_from,‘msg_group‘:msg_group, ‘msg_content‘:msg_content,‘msg_type‘:msg_type,‘msg_url‘:msg_url} self.msg_list.append(msg_dict) self.clearList() @itchat.msg_register([NOTE],isFriendChat=True, isGroupChat=True) def recall(msg): ‘‘‘ 当消息类型为通知类的时候，查找消息内容是否为撤回消息，如果是，则执行撤回后的防撤回操作 :param msg: :return: ‘‘‘ # pprint.pprint(msg) msg_content=msg[‘Content‘] if re.search(r‘\<replacemsg\>\<!\[CDATA\[(.*)撤回了一条消息\]\]\>\<\/replacemsg\>‘,msg_content): msg_note=re.search(r‘\<replacemsg\>\<!\[CDATA\[(.*)\]\]\>\<\/replacemsg\>‘,msg_content).group(1) old_msg_id=re.search(r‘\<msgid\>([0-9]+)\</msgid\>‘,msg_content).group(1) for each in self.msg_list: if each[‘msg_id‘]==old_msg_id: timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S,", timeArray) msg_note = msg_note + ‘，撤回内容为：‘ + each[‘msg_content‘] if each[‘msg_group‘]!=‘‘: msg_note = "群组（"+each[‘msg_group‘]+")中"+msg_note msg_note=otherStyleTime+msg_note itchat.send(msg_note,toUserName=‘filehelper‘) self.msg_list.pop(self.msg_list.index(each)) self.getMsgSignal.emit(msg_note) break #创建BuckUp文件夹 if not os.path.exists(".\\BackUp\\"): os.mkdir(‘.\\BackUp\\‘) #启动itchat() itchat.auto_login(hotReload=True) itchat.run()
class mainwindowapp(QMainWindow,wechatunrecall.Ui_MainWindow): def __init__(self): super().__init__() self.setupUi(self) self.createActions() self.createTrayIcon() self.pushButton.clicked.connect(self.saveLog) self.pushButton_2.clicked.connect(self.clearlog) self.pushButton_3.clicked.connect(self.houtai) self.trayIcon.activated.connect(self.iconActivated) timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) self.setLog(otherStyleTime+"，程序运行时，请用手机扫描弹出的二维码进行登录，并确保电脑上自带的Window照片查" "看器可用，撤回的图片文件等可下载附件连同运行日志保存在程序目录下BackUp文件夹中。\n") self.weChatBigWord() def saveLog(self): ‘‘‘ 保存日志 :return: ‘‘‘ if not os.path.exists(".\\BackUp\\"): os.mkdir(".\\BackUp\\") timeArray = time.localtime() otherStyleTime = time.strftime("%Y-%m-%d%H%M%S", timeArray) text=self.textBrowser.toPlainText() logPath=".\\BackUp\\"+otherStyleTime+‘.txt‘ with open(logPath,‘w‘) as f: f.write(text) def setLog(self,msg): ‘‘‘ 往运行日志窗口写撤回消息的内容 :param msg: :return: ‘‘‘ self.textBrowser.append(msg) def createTrayIcon(self): ‘‘‘ 创建托盘图标，可以让程序最小化到windows托盘中运行 :return: ‘‘‘ self.trayIconMenu=QMenu(self) self.trayIconMenu.addAction(self.restoreAction) self.trayIconMenu.addSeparator() self.trayIconMenu.addAction(self.quitAction) self.trayIcon=QSystemTrayIcon(self) self.trayIcon.setContextMenu(self.trayIconMenu) self.trayIcon.setIcon(QIcon(‘./media/images/maincion.png‘)) self.setWindowIcon(QIcon(‘./media/images/maincion.png‘)) self.trayIcon.show() def createActions(self): ‘‘‘ 为托盘图标添加功能 :return: ‘‘‘ self.restoreAction=QAction("恢复",self,triggered=self.showNormal) self.quitAction=QAction("退出",self,triggered=QApplication.instance().quit) def iconActivated(self,reason): ‘‘‘ 激活托盘功能 :param reason: :return: ‘‘‘ if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.DoubleClick): self.showNormal() def houtai(self): self.hide() def clearlog(self): self.textBrowser.clear() def weChatBigWord(self): ‘‘‘ weChatThread类实例化，并启动线程 :return: ‘‘‘ from weChatThread import weChatWord self.wcBWThread=weChatWord() self.wcBWThread.getMsgSignal.connect(self.setLog) self.wcBWThread.start()
程序界面仍然由Qtdesigner设计
第一次尝试多线程编程，并且具体应用到实际项目中去，收获良多。
Python3.5+PyQt5多线程+itchat实现微信防撤回桌面版代码
标签：nec 清空 tco 主线程 ons 参数 except sel 照片
原文地址：https://www.cnblogs.com/pythonClub/p/10251939.html
