Debug is debug level.

Debugf is format debug level.

Error is error level.

Errorf is format error level.

Fatal logs a message, then calls os.Exit.

Fatalf logs a templated message, then calls os.Exit.

GetLogger gets the logger.

Info is info level.

Infof is format info level.

InitLogger use for init logger by @conf.

Panic logs a templated message, then calls os.Exit.

Panicf logs a templated message, then calls os.Exit.

SetLogger sets logger for dubbo and getty.

SetLoggerLevel use for set logger level.

Warn is warning level.

Warnf is format warning level.

Logger is the interface for Logger types.

OpsLogger use for the SetLoggerLevel.