使用Python语言结合OpenCV库来处理视频流和条形码/二维码的识别，并使用PyQt5库来构建GUI界面。
安装必要的库
首先，确保你已经安装了所需的库：

pip install opencv-python pyzbar PyQt5

import sys
import time
import cv2
from pyzbar.pyzbar import decode
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QVBoxLayout, QWidget, QLabel, QTextEdit
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import QTimer, Qt
from datetime import datetime
import numpy as npclass BarcodeScanner(QMainWindow):def __init__(self):super().__init__()self.initUI()self.cap = cv2.VideoCapture(0)self.timer = QTimer()self.timer.timeout.connect(self.update_frame)self.is_scanning = Falseself.continuous_scan = Falsedef initUI(self):self.setWindowTitle('条形码扫描器')self.setGeometry(100, 100, 1080, 1080)# 中央部件central_widget = QWidget