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C/C++ code:
#include<sys/types.h>
2 #include<sys/wait.h>
3 #include<unistd.h>
4 #include<stdio.h>
5 int main()
6 {
7 pid_t pid;
8
10 int exit_code; //ÕâÀïÓÐÒÉÎÊ
11 printf("haha progress\n");
12 pid=fork();
13 switch(pid)
14 {
15 case -1:
16 perror("fork faild");
17 exit(1);
18 case 0:
19
21 exit_code=37;
22 break;
23 default:
26 exit_code=0;
27 break;
28 }
29
35 if(pid!=0)
36 {
37 int stat_val;
38 pid_t child_pid;
39 child_pid=wait(&stat_val);
40 printf("chile has finished:pid=%d\n",child_pid);
41 if(WIFEXITED(stat_val))
42 printf("child exit with code: %d\n",WEXITSTATUS(stat_val));
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