说明：  进程间通信，通过共享内存的方式实现进程间通信，即在内存中开辟一个共享内存区域，创建两个控制台应用程序，来检测进程间的通信
(Inter-process communication, through the shared memory means to achieve inter-process communication, that is in memory to open a shared memory region, to create two console applications, to detect inter-process communication)