diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
index fe55b3de6..648e83eb2 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/core/usbh_core.c
@@ -2,6 +2,5 @@
 // #include "libserial.h"
 
 int main(){
-//    printf("++++++++++++++++++");
     return 0;
 }
\ No newline at end of file