python pyqt5 信号

-- coding: utf-8 --

""" 【简介】 信号和槽例子

"""

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

app = QApplication(sys.argv) widget = QWidget()

def showMsg(): QMessageBox.information(widget, "信息提示框", "ok，弹出测试信息")

btn = QPushButton("测试点击按钮", widget) btn.clicked.connect(showMsg) widget.show() sys.exit(app.exec_())