PYQT5开启多个线程和窗口,多线程与多窗口的交互实例

PYQT5开启多个线程和窗口开启多个线程和窗口,多线程与多窗口的交互实例多线程与多窗口的交互实例

今天小编就为大家分享一篇PYQT5开启多个线程和窗口,多线程与多窗口的交互实例，具有很好的参考价值，希

望对大家有所帮助。一起跟随小编过来看看吧

每点击一次按钮,弹出一个对话框(子窗口),同时开启一个子线程来执行任务并更新对话框内容,关闭对话框则关闭对应子线程

1. 建立一个简单的主界面和一个自定义对话框建立一个简单的主界面和一个自定义对话框

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):

def setupUi(self, MainWindow):

spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)

self.gridLayout.addItem(spacerItem, 0, 0, 1, 1)

self.pushButton = QtWidgets.QPushButton(self.centralwidget)

self.pushButton.setObjectName("pushButton")

self.gridLayout.addWidget(self.pushButton, 0, 1, 1, 1)

spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)

self.gridLayout.addItem(spacerItem1, 0, 2, 1, 1)

MainWindow.setCentralWidget(self.centralwidget)

self.menubar = QtWidgets.QMenuBar(MainWindow)

self.menubar.setGeometry(QtCore.QRect(0, 0, 327, 23))

self.pushButton.clicked.connect(MainWindow.open_dialog)

QtCore.QMetaObject.connectSlotsByName(MainWindow)

def retranslateUi(self, MainWindow):

_translate = QtCore.QCoreApplication.translate

MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))

self.pushButton.setText(_translate("MainWindow", "多线程弹窗"))

class Ui_Dialog(object):

def setupUi(self, Dialog):

Dialog.setObjectName("Dialog")

Dialog.resize(369, 128)

self.gridLayout.addWidget(self.buttonBox, 1, 0, 1, 1)

self.progressBar = QtWidgets.QProgressBar(Dialog)