实现了操作系统的内存模拟管理功能，简单易懂，适合学习。此文档实现了内存管理的动态分区分配，固定分区分配，显示内存分配情况，可实现回收再利用功能。-Achieved the operating system memory management functions simulated, simple and easy to understand, suitable for learning. This document implements the dynamic memory management partition, fixed geographical distribution, display memory allocation can be realized recycling capabilities.