code: public static LogFactory create() {
  		final LogFactory factory = doCreate();
  		factory.getLog(LogFactory.class).debug("Use [{}] Logger As Default.", factory.name);
  		return factory;
  	}
docs: 决定日志实现
  <p>
  依次按照顺序检查日志库的jar是否被引入，如果未引入任何日志库，则检查ClassPath下的logging.properties，存在则使用JdkLogFactory，否则使用ConsoleLogFactory
  
  @see Slf4jLogFactory
  @see Log4j2LogFactory
  @see Log4jLogFactory
  @see ApacheCommonsLogFactory
  @see TinyLogFactory
  @see JbossLogFactory
  @see ConsoleLogFactory
  @see JdkLogFactory
  @return 日志实现类