今天小编就为大家分享一篇pyqt 多窗口之间的相互调用方法，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
* 在编程开发中，一个程序不可避免的需要多窗口操作来实现具体的功能。
实现此功能的基本步骤（以三个窗口为例，使用主窗口调用其它两个窗口）
# 主窗口 from PyQt5 import QtCore, QtGui, QtWidgets class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(800, 600) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.pushButton = QtWidgets.QPushButton(self.centralwidget) self.pushButton.setGeometry(QtCore.QRect(70, 180, 75, 23)) self.pushButton.setObjectName("pushButton") self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_2.setGeometry(QtCore.QRect(250, 180, 75, 23)) self.pushButton_2.setObjectName("pushButton_2") MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtWidgets.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23)) self.menubar.setObjectName("menubar") MainWindow.setMenuBar(self.menubar) self.statusbar = QtWidgets.QStatusBar(MainWindow) self.statusbar.setObjectName("statusbar") MainWindow.setStatusBar(self.statusbar) self.retranslateUi(MainWindow) QtCore.QMetaObject.connectSlotsByName(MainWindow) def retranslateUi(self, MainWindow): _translate = QtCore.QCoreApplication.translate MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow")) self.pushButton.setText(_translate("MainWindow", "打开窗口1")) self.pushButton_2.setText(_translate("MainWindow", "打开窗口2 ")) # 窗口1 class Ui_Dialog(object): def setupUi(self, Dialog): Dialog.setObjectName("Dialog") Dialog.resize(400, 300) self.buttonBox = QtWidgets.QDialogButtonBox(Dialog) self.buttonBox.setGeometry(QtCore.QRect(30, 240, 341, 32)) self.buttonBox.setOrientation(QtCore.Qt.Horizontal) self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok) self.buttonBox.setObjectName("buttonBox") self.label = QtWidgets.QLabel(Dialog) self.label.setGeometry(QtCore.QRect(140, 100, 54, 12)) self.label.setObjectName("label") self.retranslateUi(Dialog) self.buttonBox.accepted.connect(Dialog.accept) self.buttonBox.rejected.connect(Dialog.reject) QtCore.QMetaObject.connectSlotsByName(Dialog) def retranslateUi(self, Dialog): _translate = QtCore.QCoreApplication.translate Dialog.setWindowTitle(_translate("Dialog", "Dialog")) self.label.setText(_translate("Dialog", "这是窗口1")) # 窗口2 class Ui_Form(object): def setupUi(self, Form): Form.setObjectName("Form") Form.resize(400, 300) self.label = QtWidgets.QLabel(Form) self.label.setGeometry(QtCore.QRect(140, 140, 54, 12)) self.label.setObjectName("label") self.retranslateUi(Form) QtCore.QMetaObject.connectSlotsByName(Form) def retranslateUi(self, Form): _translate = QtCore.QCoreApplication.translate Form.setWindowTitle(_translate("Form", "Form")) self.label.setText(_translate("Form", "这是窗口2")) 主程序入口：
# 主程序 class MainWindow(QMainWindow, untitled.Ui_MainWindow): def __init__(self): super(MainWindow, self).__init__() self.setupUi(self) self.window2 = Ui_Dialog() self.window2.setupUi() self.window3 = Ui_Form() self.window3.setupUi() self.pushButton.clicked.connect(self.window2.show)# 绑定窗口2 self.pushButton_2.clicked.connect(self.window3.show) # 绑定窗口3 if __name__ == '__main__': app = QApplication(sys.argv) MainWindow = MainWindow() MainWindow.show() sys.exit(app.exec_())
以上实现主窗口通过按钮弹出窗口1和窗口2
下面实现通过窗口按钮打开文件资源管理器，实现获取文件相关信息的功能：
1. 在主窗口中添加一个按钮：
class Ui_MainWindow(object): def setupUi(self, MainWindow): ...... self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_3.setGeometry(QtCore.QRect(420, 180, 75, 23)) self.pushButton_3.setObjectName("pushButton_3") def retranslateUi(self, MainWindow): ...... self.pushButton_3.setText(_translate("MainWindow", "打开目录")) 2.主程序中添加：
# 主程序 class MainWindow(QMainWindow, untitled.Ui_MainWindow): def __init__(self): super(MainWindow, self).__init__() self.setupUi(self) self.window2 = Ui_Dialog() self.Window2.setupUi() self.window3 = Ui_Form() self.Window3.setupUi() self.pushButton.clicked.connect(self.window2.show)# 绑定窗口2 self.pushButton_2.clicked.connect(self.window3.show) # 绑定窗口3 self.pushButton_3.clicked.connect(self.gefilename) # 新增加的 # 新增加的 def gefilename(self): filename = QFileDialog.getOpenFileName() return filename if __name__ == '__main__': app = QApplication(sys.argv) MainWindow = MainWindow() MainWindow.show() sys.exit(app.exec_())
即可完成上述功能。
以上这篇pyqt 多窗口之间的相互调用方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持html中文网。
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