P164

#include<stdio.h>
#include<stdlib.h>
#define N 8
typedef struct list
{
	int data;
	struct list *next;
}SLIST;
SLIST *creatlist(int *);
void outlist(SLIST *);
int fun(SLIST *h)
{
	SLIST *p;int s=0;
	p=h->next;
	while(p)
	{	s+=p->data;
		p=p->next;
	}
	return s;
}
main()
{
	SLIST *head;
	int a[N]={268,87,45,32,91,16,20,12};
	head=creatlist(a);outlist(head);
	printf("\nsum=%d\n",fun(head));
}

SLIST *creatlist(int a[])
{
	SLIST *h,*p,*q;int i;
	h=p=(SLIST *)malloc(sizeof(SLIST));
	for(i=0;i<N;i++)
	{	q=(SLIST *)malloc(sizeof(SLIST));
		q->data=a[i];p->next=q;p=q;
	}
	p->next=NULL;
	return h;
}
void outlist(SLIST *h)
{
	SLIST *p;
	p=h->next;
	if(p==NULL)
		printf("The list is NULL!\n");
	else
	{
		printf("->%d",p->data);
		p=p->next;
	}
	while(p!=NULL);
	printf("->End\n");
}

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P164