对话框——输入对话框

 

# !/usr/bin/python3
# -*- coding: utf-8 -*-

"""
ZetCode PyQt5 tutorial

In this example, we receive data from
a QInputDialog dialog.

Aauthor: Jan Bodnar
Website: zetcode.com
Last edited: August 2017
"""

from PyQt5.QtWidgets import (QWidget, QPushButton, QLineEdit, QInputDialog, QApplication)
import sys


class Example(QWidget):

    def __init__(self):
        super().__init__()

        self.initUI()

    def initUI(self):

        self.btn = QPushButton('Dialog', self)
        self.btn.move(20, 20)
        self.btn.clicked.connect(self.showDialog)

        self.le = QLineEdit(self)
        self.le.move(130, 22)

        self.setGeometry(300, 300, 290, 150)
        self.setWindowTitle('Input dialog')
        self.show()

    def showDialog(self):

        # The dialog returns the entered text and a boolean value.
        # if we click the Ok button, the boolean value is true
        # The first string is a dialog title, the second one is a message within the dialog
        text, ok = QInputDialog.getText(self, 'Input Dialog', 'Enter your name:')

        if ok:
            # The text that we have received from the dialog is \
            # set to the line edit widget with setText()
            self.le.setText(str(text))


if __name__ == '__main__':

    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())