本篇博客对应的视频讲解:https://www.bilibili.com/video/BV1NZ4y1Z7ue/
import sys
from PyQt5.QtWidgets import QMainWindow, QPushButton, QApplication
class First(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def closewin(self):
self.close()
def initUI(self):
self.btn = QPushButton("Button", self)
self.btn.move(30, 50)
self.setGeometry(300, 300, 500, 500)
self.setWindowTitle('Event sender')
self.show()
class Second(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setGeometry(300, 300, 290, 150)
self.setWindowTitle('Get sender')
if __name__ == '__main__':
app = QApplication(sys.argv)
a = First()
b = Second()
a.show()
a.btn.clicked.connect(a.closewin)
a.btn.clicked.connect(b.show)
sys.exit(app.exec_())