dglog

Debugf logs a message at level Debug on the standard logger.

Errorf logs a message at level Error on the standard logger.

Infof logs a message at level Info on the standard logger.

Tracef logs a message at level Trace on the standard logger.

Warnf logs a message at level Warn on the standard logger.

Warningf logs a message at level Warn on the standard logger.

日志自定义格式.