aa

business/jxstore/event/event_tcp.go

@@ -470,8 +470,13 @@ func replaceContent(content string, printMsg *model.PrintMsg) (result string) {
 				//fd	固定
 				//001a (声音数据长度高八位低八位)
 				//0101  固定
-				soundPerfix := "[v" + utils.Int2Str(printer.Volume*2) + "]" + printer.Sound + ","
-				hexPrefix, _ := jxutils.Utf8ToGbk([]byte(soundPerfix))
+				soundPrefix := ""
+				if printer.Sound != "" {
+					soundPrefix = "[v" + utils.Int2Str(printer.Volume*2) + "]" + printer.Sound + ","
+				} else {
+					soundPrefix = "[v" + utils.Int2Str(printer.Volume*2) + "]"
+				}
+				hexPrefix, _ := jxutils.Utf8ToGbk([]byte(soundPrefix))
 				hexPrefixStr := hex.EncodeToString(hexPrefix)
 				realSound := hexPrefixStr + sound
 				allLen := fmt.Sprintf("%x", (len("fd001a0101")+len(realSound))/2)