def capture_photo(): # 打开摄像头 cap = cv2.VideoCapture(0)

# 检查摄像头是否打开成功
if not cap.isOpened():
    raise Exception("Failed to open camera")
# 图片为黑，必须 sleep 一下！！！
sleep(0.1)
# 读取一帧图像
ret, frame = cap.read()

# 检查图像是否读取成功
if not ret:
    raise Exception("Failed to capture frame")

# 释放摄像头
cap.release()

# 保存图像到当前目录
cv2.imwrite("captured_photo.jpg", frame)

return "Photo captured successfully"