对话框：QDialog

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对话框：QDialog

QMessageBox
QColorDialog
QFileDialog
QFontDialog
QInputDialog

QMainWindow
QWidget
QDialog

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import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class QDialogDemo(QMainWindow):
    def __init__(self):
        super(QDialogDemo,self).__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle(‘QDialog案例‘)
        self.resize(300,200)

        self.button = QPushButton(self)
        self.button.setText(‘弹出对话框‘)
        self.button.move(50,50)
        self.button.clicked.connect(self.showDialog)

    def showDialog(self):
        dialog = QDialog()
        button = QPushButton(‘确定‘,dialog)
        button.clicked.connect(dialog.close)
        button.move(50,50)
        dialog.setWindowTitle(‘对话框‘)
        dialog.setWindowModality(Qt.ApplicationModal)

        dialog.exec()

if __name__ == ‘__main__‘:
    app = QApplication(sys.argv)
    main = QDialogDemo()
    main.show()
    sys.exit(app.exec_())