fork函数02

#include <stdio.h>#include <stdlib.h>#include <unistd.h>// 创建procnum个子进程，每个进程循环loopnum次int main(void){    int procnum = 0, loopnum = 0;    int i = 0, j = 0;    pid_t fpid;    printf("procnum: ");    scanf("%d", &procnum);    printf("loopnum: ");    scanf("%d", &loopnum);    for (i = 0; i < procnum; i++) {        fpid = fork();        if (fpid == 0) {            for (j = 0; j < loopnum; j++){                printf("loopnum: %d\n", j);            }            exit(0);        }    }    return 0;}