QMainWindow多线程demo

# -*- coding: utf-8 -*-

from PyQt5 import QtWidgets, QtCore

import sys
from PyQt5.QtCore import *
import time

# 继承QThread
from PyQt5.QtWidgets import QMainWindow, QPushButton


class Runthread(QThread): # python3,pyqt5与之前的版本有些不一样
 #  通过类成员对象定义信号对象
 _signal = pyqtSignal(str) def __init__(self, parent=None): super(Runthread, self).__init__() def __del__(self): self.wait() def run(self): # 处理你要做的业务逻辑，这里是通过一个回调来处理数据，这里的逻辑处理写自己的方法
 # wechat.start_auto(self.callback)
 for i in range(2000000): # 发出信号
 self._signal.emit('当前循环值为:%s' % i) # 让程序休眠
 time.sleep(0.5) # self._signal.emit("sdf");  #可以在这里写信号焕发

 def callback(self, msg): # 信号焕发，我是通过我封装类的回调来发起的
 self._signal.emit(msg);


class mywindow(QMainWindow): def __init__(self): super(mywindow, self).__init__() self.setupUi() def setupUi(self): self.btn1 = QPushButton("Button 1", self) self.btn1.setMaximumWidth(200) self.btn1.move(30, 50) btn2 = QPushButton("Button 2", self) btn2.move(150, 50) self.btn1.clicked.connect(self.start_login) # self.btn1.clicked.connect(self.buttonClicked)
 btn2.clicked.connect(self.start_login) self.statusBar() self.setGeometry(300, 300, 290, 150) self.setWindowTitle('Event sender') self.show() def start_login(self): # 创建线程
 self.thread = Runthread() # 连接信号
 self.thread._signal.connect(self.callbacklog) # 开始线程
 self.thread.start() def callbacklog(self, msg): # 奖回调数据输出到文本框
 self.btn1.setText("\n"+ msg+ "   "+ time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()));


if __name__ == "__main__": app = QtWidgets.QApplication(sys.argv) myshow = mywindow() myshow.show() sys.exit(app.exec_())

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/78785217