diff --git a/flashSMS.py b/flashSMS.py
index 77947e2..9266b87 100644
--- a/flashSMS.py
+++ b/flashSMS.py
@@ -22,7 +22,7 @@ def decode2HexStr(Unicde_Str):
 
 
 
-def sendSMS(phonenumber,warntext):
+def sendSMS(phonenumber,warntext,modem):
     modem.write(("AT"+"\r\n").encode())
     print(modem.readline())
     time.sleep(0.5)
@@ -86,7 +86,7 @@ def sendFlash(phonenumber,warntext):
         print ("短信助手硬件USB接口已连接成功...正在启动")
         # phonenumber=input('请输入phonenumber: ')
         # warntext=input('warntext: ')
-        sendSMS(phonenumber,warntext)
+        sendSMS(phonenumber,warntext,modem)
         modem.close()
     except Exception as e:
         print(e)