PyQt学习--HelloWorld

直接传代码
# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'helloworld.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication,QMainWindow
import sys


def helloworld():
    print("hello world!")

class Ui_MainWindow(object):

    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(300, 150)
        MainWindow.setMinimumSize(QtCore.QSize(300, 150))
        MainWindow.setMaximumSize(QtCore.QSize(300, 150))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(80, 40, 70, 50))
        self.pushButton.setMinimumSize(QtCore.QSize(70, 50))
        self.pushButton.setMaximumSize(QtCore.QSize(70, 50))
        self.pushButton.setObjectName("pushButton")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.pushButton.clicked.connect(helloworld) #绑定点击事件
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "Click it"))

if __name__ == '__main__':
    app = QApplication(sys.argv)
    MainWindow = QMainWindow()
    ui = Ui_MainWindow() #获得界面
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())
运行结果：
PyQt学习--HelloWorld