func (l *Logger) Infof(format string, args ...interface{}) {
	l.Output(2, LevelInfo, fmt.Sprintf(format, args...))
}
func (l *Logger) Infof(format string, args ...interface{}) {
	l.Output(2, LevelInfo, fmt.Sprintf(format, args...))
}
func ( l * Logger ) Infof ( format string , args ... interface { } ) { l . Output ( 2 , LevelInfo , fmt . Sprintf ( format , args ... ) ) }
// Infof records the log with info level
Infof records the log with info level