利用管道进行进程间通信 设有二元自然数变量函数F(m,n)、f (m)  g(n) 请编程建立3个并发协作进程或线程，它们分别完成计算F(m,n)、f (m)和g(n)。-Programming to establish three concurrent collaborative processes or threads, respectively, to complete the calculation of F (m, n), f (m) and g (n).

利用管道进行进程间通信 设有二元自然数变量函数F(m,n)、f (m)  g(n) 请编程建立3个并发协作进程或线程，它们分别完成计算F(m,n)、f (m)和g(n)。-Programming to establish three concurrent collaborative processes or threads, respectively, to complete the calculation of F (m, n), f (m) and g (n