如何测量进度条的线程时间？

import threading
import time

class ProgressBarThread(threading.Thread):
    def __init__(self):
        super().__init__()
        self.start_time = time.time()
        self.stop_event = threading.Event()

    def run(self):
        while not self.stop_event.is_set():
            current_time = time.time()
            elapsed_time = current_time - self.start_time
            progress = int(elapsed_time * 10)  # 假设进度条总长度为10
            print(f"Progress: [{'=' * progress}>{' ' * (10 - progress)}] {progress * 10}%")
            time.sleep(1)  # 每秒更新一次进度条

    def stop(self):
        self.stop_event.set()

# 创建并启动进度条线程
progress_thread = ProgressBarThread()
progress_thread.start()

# 模拟耗时操作
time.sleep(5)

# 停止进度条线程
progress_thread.stop()
progress_thread.join()