程序代码：

#include <stdio.h>
#include <malloc.h>
#include <string.h>
typedef struct info {
    char p[1024];
    struct info * next;
} Info;

Info * test() {
    int count = 10, i;
    Info * head, *p;
    char * s = "hello";
    head = p = (Info *) malloc(sizeof(Info));
    for (i = 0; i < count; i++) {
        p->next = (Info *) malloc(sizeof(Info));
        p = p->next;
        strcpy(p->p, s);
    }
    p->next = NULL;
    return head;
}

int main()
{
    Info *ts;
    char *ss;
    ts = test();
    ss = ts->next->p;
    printf("%s\n",ss);
    return 0;
}

程序代码：

void free_list(info * p) {
    info * q;
    while(p) {
        q = p;
        p = p->next;
        free(q);
    }
}