pyqt5线程龟兔赛跑

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# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file '龟兔赛跑.ui'
#
# Created by: PyQt5 UI code generator 5.15.9
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QThread, pyqtSignal


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)

        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(180, 120, 131, 31))
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(440, 120, 131, 31))
        self.label_2.setObjectName("label_2")
        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(90, 160, 241, 201))
        self.textEdit.setObjectName("textEdit")
        self.textEdit_2 = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit_2.setGeometry(QtCore.QRect(420, 160, 271, 201))
        self.textEdit_2.setObjectName("textEdit_2")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(310, 420, 111, 61))
        self.pushButton.setObjectName("pushButton")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)


        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

        # 创建兔子和乌龟的对象，把对象的信号连接槽函数，槽函数追加文本到面板
        self.r = Rabbit()
        # 把兔子实例的sinOut信号连接到rabbit槽函数，
        self.r.sinOut.connect(self.rabbit)


        self.t = Tortoise()
        self.t.sinOut.connect(self.tortoise)

        self.pushButton.clicked.connect(self.start)


    def start(self):
        self.r.start()
        self.t.start()

    #  rabbit方法，它是一个槽函数，用于处理接收到的信号。将传入的字符串 str 追加到
    #  self.textEdit 控件中
    def rabbit(self,str):
        self.textEdit.setPlainText(self.textEdit.toPlainText() + str)
    def tortoise(self,str):
        self.textEdit_2.setPlainText(self.textEdit_2.toPlainText() + str)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label.setText(_translate("MainWindow", "兔子的比赛记录"))
        self.label_2.setText(_translate("MainWindow", "乌龟的比赛记录"))
        self.pushButton.setText(_translate("MainWindow", "开始比赛"))

class Rabbit(QThread):
    # 声明了一个名为 sinOut 的信号，它是一个从 pyqtSignal 类实例化的对象。pyqtSignal是 PyQt 提供的一个特殊类
    # 用于创建信号。它是 QObject 类的信号和槽机制的一部分

    # 信号可以用来在 PyQt 应用程序的不同组件之间传递信息。
    # sinOut是信号的名称，可以在类的其他方法中发射（emit）这个信号，也可以连接到一个槽函数。
    sinOut = pyqtSignal(str)
    # 重写run方法
    def __init__(self):
        super(Rabbit,self).__init__()
    def run(self):
        for i in range(1,11):
            QThread.msleep(100)
            self.sinOut.emit("\n  兔子跑了"+ str(i) + "0米") # 发射信号，传递字符串
            if i == 9:
                self.sinOut.emit("\n  兔子在睡觉")
                QThread.sleep(5)
            if i == 10:
                self.sinOut.emit("\n  兔子到达终点")

# 兔子类，乌龟类继承自QThead，重写run方法。定义信号并发射
class Tortoise(QThread):
    sinOut = pyqtSignal(str)
    # 重写run方法
    def __init__(self):
        super(Tortoise, self).__init__()

    def run(self):
        for i in range(1,11):
            QThread.msleep(500)
            self.sinOut.emit("\n  乌龟跑了"+ str(i) + "0米")
            if i == 10:
                self.sinOut.emit("\n  乌龟到达终点")

import sys
# 主方法，程序从此处启动PyQt设计的窗体
if __name__ == '__main__':
   app = QtWidgets.QApplication(sys.argv)
   MainWindow = QtWidgets.QMainWindow() # 创建窗体对象
   ui = Ui_MainWindow() # 创建PyQt设计的窗体对象
   ui.setupUi(MainWindow) # 调用PyQt窗体的方法对窗体对象进行初始化设置
   MainWindow.show() # 显示窗体
   sys.exit(app.exec_()) # 程序关闭时退出进程