【Pyqt5】生成界面、点击函数

import os
import re
import sys
from PyQt5 import QtWidgets, QtCore
from PyQt5.QtWidgets import QWidget, QApplication

from untitled import Ui_Form # 界面


class Main(QWidget, Ui_Form):

    def __init__(self):
        super(Main, self).__init__()
        self.setupUi(self)

        self.start.clicked.connect(lambda: self.print())


    def print(self):
        print("开始")


def main():
    app = QApplication(sys.argv)
    # app.setStyleSheet(open("Network.qss", encoding='utf8').read())  # qss文件引入
    ui = Main()
    ui.show()
    sys.exit(app.exec_())


if __name__ == "__main__":
    main()