1: /*
2: Author:Justinzhang
3: email:uestczhangchao@gmail.com
4: time:2012-8-30 22:17:23
5: desc：fork problem, from www.qshpan.com
6: */
7: 8: #include <stdio.h> 9: #include <stdlib.h>10: int sum;
11: int main()
12: {13: int i = 0;
14: sum = 0; 15: fork();16: for(i=0; i<5; i++)
17: {18: printf("%d\n",i);
19: fflush(stdout); 20: sum += i; 21: }22: printf("sum = %d\n", sum);
23: 24: exit(0); 25: }