For more information about using the various logging objects for program tracing , see the 有关使用各种日志记录对象进行程序跟踪的详细信息,请参阅sun microsystems网站上的
The following program traces changes made to all the files of a specified directory using an integrity test based on md5 checksum , which prevents modifications from being masked 下面的程序基于对为防止修改而被伪装的md5校验和进行的完整性测试,跟踪对指定目录中全部文件所做的修改。