test sound

business/jxstore/event/event_tcp.go

@@ -477,6 +477,9 @@ func replaceContent(content string, printMsg *model.PrintMsg) (result string) {
 				soundPerfix := "[" + utils.Int2Str(printer.Volume*2) + "]" + printer.Sound + ","
 				realSound := soundPerfix + sound
 				allLen := fmt.Sprintf("%x", (len("fd001a0101")+len(realSound))/2)
+				if len(allLen) < 2 {
+					allLen = "0" + allLen
+				}
 				soundLenH, soundLenX := int2h8l8(int64(len(realSound) / 2))
 				hexPrefix, _ := jxutils.Utf8ToGbk([]byte(soundPerfix))
 				result = strings.ReplaceAll(result, byteSignSound, hexSignSound+allLen+"fd"+soundLenH+soundLenX+"0101"+hex.EncodeToString(hexPrefix))