test.c

一个不错的POS系统

#include <stdio.h>
#include <string.h>
#include "link.h"

C_CLASS LINKLIST list;
typedef struct 
{	
	char sno[7];
	char sname[32];
	int	age;
	
}STU;

STU stu[3]={
	{"001","张三",20},
	{"002","李四",22},
	{"003","王五",21}
};

int condition_sno(void * data,char *sno)
{
	STU * stu;
	stu=(STU *)data;
	if (strcmp(stu->sno,sno)==0)
	{
		return 0;
	}
	else
		return 1;
}

int main()
{
	int i;
	NODE* n=NULL;
	STU* s=NULL;
	int index;
	link_init(&list);

	
	for (i=0; i<sizeof(stu)/sizeof(STU); i++)
	{
		list.insert_rear(&list,(void *)&stu[i],sizeof(STU));
	}
	
	printf("学生信息表\n");
	for (i=1; i<=list.count; i++)
	{
		n=list.get_node_by_index(&list,i);
		if (n!=NULL)
		{
			s=(STU*)n->data;
		}
		
		if (s!=NULL)
		{
			printf("SNO=%s\tSNAME=%s\tSAGE=%d\n",s->sno,s->sname,s->age);
		}
		
	}
	printf("\n");

	n=list.get_node_by_key(&list,"002",(int (*)(void*,void*))condition_sno);
	if (n!=NULL)
	{
		s = (STU*)n->data;
	}
	
	printf("SNO=002学生信息\n");

	if (s!=NULL)
	{
		printf("SNO=%s\tSNAME=%s\tSAGE=%d\n",s->sno,s->sname,s->age);
	}
	
	printf("\n");

	index=list.get_index_by_key(&list,"004",(int (*)(void*,void*))condition_sno);
	printf("SNO=002学生信息下标: %d\n",index);
	printf("\n");

	list.delete_node_by_key(&list,"002",(int (*)(void*,void*))condition_sno);
	printf("删除SNO＝2号学生后学生信息表\n");
	for (i=1; i<=list.count; i++)
	{
		n=list.get_node_by_index(&list,i);
		if (n!=NULL)
		{
			s=(STU*)n->data;
		}
		
		if (s!=NULL)
		{
			printf("SNO=%s\tSNAME=%s\tSAGE=%d\n",s->sno,s->sname,s->age);
		}
		
	}
	printf("\n");

	list.del(&list);
	printf("删除链表结点但不删除头结点后链表个数:%d\n",list.count);
	printf("头结点的地址=%d\n",list.head);
	printf("\n");

	list.clear(&list);
	printf("清除链表结点后链表个数:%d\n",list.count);
	printf("头结点的地址=%d\n",list.head);

	return 0;
}