qq_46279105的博客

#include<stdio.h> #include <unistd.h> int main(){ int fd[2]; int pp = pipe(fd); int p1=1,i; p1 = fork(); if(p1==0){ close(fd[0]); sleep(10); write(fd[1],"Child 1 is sending a message!",strlen("Child 1 is sending a message!")); }e

#include<stdio.h> #include <unistd.h> int main(){ int p1=1,i; p1 = fork(); if(p1==0){ printf("b\n"); printf("b begin!\n"); for(i=0;i<100;i++) printf("son!\n"); printf("b end!\n"); }else{ printf("a\n"); printf("a begin!\n");