用Python语言写一个pyqt5的与算法相关的进度条功能

可以使用以下代码实现：

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QProgressBar, QPushButton
from PyQt5.QtCore import QThread, pyqtSignal

class AlgorithmThread(QThread):
    update_progress = pyqtSignal(int)

    def __init__(self):
        super().__init__()

    def run(self):
        for i in range(101):
            self.update_progress.emit(i)
            self.msleep(50)

class App(QWidget):
    def __init__(self):
        super().__init__()
        self.title = 'Algorithm Progress'
        self.left = 100
        self.top = 100
        self.width = 400
        self.height = 200
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        self.progress_bar = QProgressBar(self)
        self.progress_bar.setGeometry(30, 40, 350, 25)

        self.start_button = QPushButton('Start', self)
        self.start_button.move(150, 80)
        self.start_button.clicked.connect(self.start_algorithm)

        self.show()

    def start_algorithm(self):
        self.algorithm_thread = AlgorithmThread()
        self.algorithm_thread.update_progress.connect(self.update_progress_bar)
        self.algorithm_thread.start()

    def update_progress_bar(self, value):
        self.progress_bar.setValue(value)

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

这个程序创建了一个窗口，其中包含一个进度条和一个开始按钮。当用户点击开始按钮时，程序会启动一个线程来模拟一个算法的运行，并通过信号来更新进度条的值。