jquery 源码 分析
学习jquery,网上有源码分析,看这个源码分析有多大帮助
更新时间:2022-08-08 13:08
最满意答案
#include#include #include #include #include #include int main() { int pipe_fds[2]; int pid; if(pipe(pipe_fds)) { fprintf(stderr,"pipe error!\n"); return -1; } if((pid = fork())<0) { fprintf(stderr, "fork error!\n"); return -1; } if(pid == 0) { char buf[20] = {0}; int n,i; close(pipe_fds[1]); read(pipe_fds[0],buf,sizeof(buf)); n=atoi(buf); for(i=1;i<=n;i++) { if(i%10 == 0) printf("\n"); printf("%d\t",i); } close(pipe_fds[0]); } else { int m; char bf[20] = {0}; close(pipe_fds[0]); printf("the child pid:%d\n",pid); printf("please input number:"); scanf("%d",&m); printf("\n"); sprintf(bf,"%d",m); write(pipe_fds[1],bf,sizeof(bf)); wait(NULL); printf("child complete!\n"); } return 0; }
其他回答
#include#include #include int main() { pid_t pid; char *message; int n; pid_t chldpid; pid_t ppid; printf("fork program starting\n"); pid = fork(); switch(pid) { case -1: perror("fork failed"); _exit(1); case 0: chldpid = getpid(); printf("chldpid = %ld ppid=%ld\n",(unsigned int)chldpid,(unsigned int)getppid()); message = "this is the child"; n = 5; break; default: ppid = getpid(); printf("ppid = %ld ppid=%ld\n",(unsigned int)ppid,(unsigned int)getppid()); message = "this is the parent"; n = 3; break; } for(; n > 0; n--) { puts(message); sleep(1); } _exit(0); }
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