向PyQt5中的方法添加进度条

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

class WorkerThread(QThread):
    progress_updated = pyqtSignal(int)

    def run(self):
        for i in range(101):
            self.progress_updated.emit(i)
            self.msleep(100)  # 模拟耗时操作

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.button = QPushButton("Start", self)
        self.button.clicked.connect(self.start_task)

        self.progress_bar = QProgressBar(self)
        self.progress_bar.setGeometry(50, 50, 200, 30)

        self.worker_thread = WorkerThread()
        self.worker_thread.progress_updated.connect(self.update_progress)

    def start_task(self):
        self.button.setEnabled(False)
        self.worker_thread.start()

    def update_progress(self, value):
        self.progress_bar.setValue(value)
        if value == 100:
            self.button.setEnabled(True)

if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec_()