diff --git a/smp_coder/mqtt_smp.py b/smp_coder/mqtt_smp.py
index c9b92a7..072c5da 100644
--- a/smp_coder/mqtt_smp.py
+++ b/smp_coder/mqtt_smp.py
@@ -1,4 +1,5 @@
 import os
+import subprocess
 
 import paho.mqtt.client as mqtt
 import time
@@ -54,7 +55,10 @@ client.publish("response/topic", "Set user.txt success!", qos=2)
 
 
 
-os.system("sudo myenv/bin/python3 smp_coder/extur_smp.py > logex.txt 2>&1 &")
+command = ["sudo", "myenv/bin/python3", "smp_coder/extur_smp.py"]
+with open("logex.txt", "w") as log_file:
+    process = subprocess.Popen(command, stdout=log_file, stderr=log_file, bufsize=1, universal_newlines=True)
+
 print("启动树莓派拍照客户端成功。")
 
 client.publish("response/topic", "启动树莓派拍照客户端成功", qos=2)