内存中申请一块区域，创建页表，每一个页号对应一个指针，每一页存放一个数据块。-Memory for a region, create the page table, a page number corresponding to each of a pointer to a block of data stored on each page.

海思HI3520d，HI3515c区域管理例程-Hass HI3520d, HI3515c regional management routines

在windows XP下实现鼠标可移动区域的限定-In windows XP the mouse to move the region to achieve the limits