一个基于linux的内核操作编程文件，包含基本读写控制，无法用记事本打开

共享内存实验代码，该实验要求利用共享内存实现文件的打开和读写操作，基于linux平台。-Shared memory experimental code, the experiment requires the use of shared memory to achieve file opening and reading and writing operations, based on the Linux platform.