the UUIDs are created using the current date, the current time and the unique number of the network card of the computer.
the time and date part resides in the first eight-digit part of the UUID. The next four-digit part is not known to me so far. The rest of it is unique and, we may say, identifies your PC.
关于GUID
GUID用于标识软件接口,它与COM(部件对象模型)中用于标识COM接口的标识符相同,它还用于OSF(开放软件基金)的DCE(分布式计算环境)中,标识RPC(远程过程调用)目标。如果你想了解GUID如何生成以及为什么能在统计意义上唯一,请参考Kraig Brockschmidt的《Inside OLE, Second Edition (Microsoft Press, 1995)》第66页,原始算法规范由OSF制定,相关部分见http://www.opengroup.org/onlinepubs/9629399/apdxa.htm。
the UUIDs are created using the current date, the current time and the unique number of the network card of the computer.
the time and date part resides in the first eight-digit part of the UUID. The next four-digit part is not known to me so far. The rest of it is unique and, we may say, identifies your PC.