测试Windows 2k中内存和外存的速度。 分别在内存中分配一片存储空间，和在硬盘上建立一个同样大小的空间，往这两个空间中用不同方式写入/读出数据。-testing Windows 2k memory and external memory speed. In memory allocated a storage space, and the drive to establish a space of the same size, to the space it used two differ