PyQt5 QMessageBox应用

• QMessageBox常见的几种信息提示框 

QMessageBox.information	信息框
QMessageBox.question	问答框
QMessageBox.warning	警告框
QMessageBox.ctitical	危险框
QMessageBox.about	关于框

• QMessageBox.information

from PyQt5.QtWidgets import QMessageBox, QWidget, QPushButton, QApplication

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.myButton = QPushButton(self)
        self.myButton.setText('按钮')
        self.myButton.move(100,100)
        self.myButton.clicked.connect(self.msg)

    def msg(self):
        reply = QMessageBox.information(self,
                                        "标题",
                                        "这里设置提示信息", #修改要提示的信息
                                        QMessageBox.Yes | QMessageBox.No)
        if reply == QMessageBox.Yes: #reply的值为QMessageBox.Yes或者QMessageBox.No
            print('yes')
        else:
            print('no')


if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

运行结果：

• QMessageBox.warning

from PyQt5.QtWidgets import QMessageBox, QWidget, QPushButton, QApplication

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.myButton = QPushButton(self)
        self.myButton.setText('按钮')
        self.myButton.move(100,100)
        self.myButton.clicked.connect(self.msg)

    def msg(self):
        reply = QMessageBox.warning(self,
                                        "标题",
                                        "这里设置警告提示信息", #修改要提示的信息
                                        QMessageBox.Yes | QMessageBox.No)
        if reply == QMessageBox.Yes: #reply的值为QMessageBox.Yes或者QMessageBox.No
            print('yes')
        else:
            print('no')


if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

 运行结果：

• QMessageBox.critical

from PyQt5.QtWidgets import QMessageBox, QWidget, QPushButton, QApplication

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.myButton = QPushButton(self)
        self.myButton.setText('按钮')
        self.myButton.move(100,100)
        self.myButton.clicked.connect(self.msg)

    def msg(self):
        reply = QMessageBox.critical(self,
                                        "标题",
                                        "这里设置危险提示信息", #修改要提示的信息
                                        QMessageBox.Yes | QMessageBox.No)
        if reply == QMessageBox.Yes: #reply的值为QMessageBox.Yes或者QMessageBox.No
            print('yes')
        else:
            print('no')


if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

运行结果：

•  QMessageBox.question

from PyQt5.QtWidgets import QMessageBox, QWidget, QPushButton, QApplication

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.myButton = QPushButton(self)
        self.myButton.setText('按钮')
        self.myButton.move(100,100)
        self.myButton.clicked.connect(self.msg)

    def msg(self):
        reply = QMessageBox.question(self,
                                        "标题",
                                        "这里设置询问提示信息", #修改要提示的信息
                                        QMessageBox.Yes | QMessageBox.No)
        if reply == QMessageBox.Yes: #reply的值为QMessageBox.Yes或者QMessageBox.No
            print('yes')
        else:
            print('no')


if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

运行结果：

•  QMessageBox.about

from PyQt5.QtWidgets import QMessageBox, QWidget, QPushButton, QApplication

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.myButton = QPushButton(self)
        self.myButton.setText('按钮')
        self.myButton.move(100,100)
        self.myButton.clicked.connect(self.msg)

    def msg(self):
        reply = QMessageBox.about(self,
                                        "标题",
                                        "这里设置about提示信息", #修改要提示的信息
                                        )
        print(reply)

if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

运行结果：