用系統(tǒng)調(diào)用signal()讓父進程捕捉鍵盤上來的中斷信號(按Ctrl-C鍵);當(dāng)捕捉到中斷信號后,父進程用系統(tǒng)調(diào)用kill()向兩個子進程發(fā)出信號,子進程捕捉到信號后分別輸出下列信息后終止: Child Process 1 is Killed by Parent! Child Process 2 is Killed by Parent! 父進程等待兩個子進程終止后,輸出如下的信息后終止: Parent Process is Killed!