Demo_Game1.py

#coding=utf-8

import sys
from PyQt5.QtWidgets import (QApplication, QMessageBox, QWidget, QPushButton)
from random import randint

class Example(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self):
        self.setGeometry(200, 200, 300, 300)
        self.setWindowTitle('学点编程吧')

        bt1 = QPushButton('剪刀',self)
        bt1.setGeometry(30,180,50,50)

        bt2 = QPushButton('石头',self)
        bt2.setGeometry(100,180,50,50)

        bt3 = QPushButton('布',self)
        bt3.setGeometry(170,180,50,50)

        bt1.clicked.connect(self.buttonclicked)
        bt2.clicked.connect(self.buttonclicked)
        bt3.clicked.connect(self.buttonclicked)

        self.show()

    def buttonclicked(self):
        computer = randint(1,3)
        player = 0
        sender = self.sender()
        if sender.text() == '剪刀':
            player = 1
        elif sender.text() == '石头':
            player = 2
        else:
            player = 3

        if player == computer:
            QMessageBox.about(self, '结果', '平手')
        elif player == 1 and computer == 2:
            QMessageBox.about(self, '结果', '电脑：石头，电脑赢了！')
        elif player == 2 and computer == 3:
            QMessageBox.about(self, '结果', '电脑：布，电脑赢了！')
        elif player == 3 and computer == 1:
            QMessageBox.about(self,'结果','电脑：剪刀，电脑赢了！')
        elif computer == 1 and player == 2:
            QMessageBox.about(self,'结果','电脑：剪刀，玩家赢了！')
        elif computer == 2 and player == 3:
            QMessageBox.about(self,'结果','电脑：石头，玩家赢了！')
        elif computer == 3 and player == 1:
            QMessageBox.about(self,'结果','电脑：布，玩家赢了！')

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())