import paho.mqtt.client as mqtt

def publish_image(mqtt_client, topic, image_path):
    with open(image_path, "rb") as image_file:
        image_data = image_file.read()
        mqtt_client.publish(topic, image_data)

client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2,)
client.connect("121.40.129.71", 48835, 60)  # 连接到 MQTT 代理

client.loop_start()
img_path = input("Enter the path of the image: ")
publish_image(client, "test/image", img_path)
client.loop_stop()