创建两个生产者进程和两个消费者进程，生产者进程a需要生成10000个整数,每次都将自己的进程号（用getpid()函数获得）和生成的整数放入共享内存中（共享内存大小为64Byte）。生产者b每次从26个英文字母中选一个，并将自己的进程号和选中的字母放入共享内存中，直到26个字母全部都选中。消费者进程c负责从共享内存中读取数据生产者进程a的数据并且将这些数据写入文件a.out。消费者进程d从共享内存读取进程b的数据后写入b.out中。-The process of the creation of two producers and two consumers process, producers process a need to generate 10,000 integers, each of its own process (using getpid () function to obtain) and generated integer Add shared memory ( shared memory size of 64Byte). Producer b each 26 letters of the alphabet from a selected and the process of their own and select Add shared memory of the letters until all 26 letters selected. C is responsible for the consumer process to read from shared memory data producers and the process of a data write to file these data a.out. Consumer process d from the process of shared memory to read the data b in b.out write.