程序代码：

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "Datastore.h"

int main()
{
    Datastore * store = ds_create();
    student obj;
    obj.id = 1;
    strcpy(obj.name,"zhangsan");
        ds_add(store,&obj);
    obj.id = 2;
    strcpy(obj.name,"zhangsan");
        ds_add(store,&obj);
    obj.id = 3;
    strcpy(obj.name,"zhangsan");
    ds_add(store,&obj);

    student * z = ds_find(store,3);
    printf("\n\n%d\t\t%s\n",z->id,z->name);


    show_printf(store);

    ds_destroy(store);

    return 0;
}



#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include"Datastore.h"

//*****************创建于销毁**********************/
 Datastore * ds_create()

 {
    Datastore * store = (Datastore*)malloc(sizeof(Datastore *));
    store->head.next = NULL;
    return store;

 }


 void ds_destroy(Datastore* store)

 {
     student * p =store->head.next;
     while(p)
     {
         student * next=p->next;
         free(p);
         p=next;
     }

 }

 //************添加****************************//
void ds_add(Datastore* store,const student * data)
{
    student * copy =(student *)malloc(sizeof(student));
    *copy = *data;
    student * cur = store->head.next;
    student * pre = & store->head;
    while(cur)
    {
        if(copy->id < data->id)
            break;
        pre=cur;
        cur=cur->next;
    }
    copy->next = pre->next;
    pre->next=copy;

}
/*******************查找*********************/
student *ds_find(Datastore* store,int id)
{
    student * p = store->head.next;
    while(p)
    {
        if(p->id == id)
            return p;
        p=p->next;
    }
    
}
/******************删除************************/
void ds_remove(Datastore* store,int id)
{
    student * p = store->head.next;
    while(p)
    {
        if(p->id == id)
        {
            student * z = p;
            p=p->next;
            free(z);
        }
        p=p->next;
    }
}
/******************打印************************/
void show_printf(Datastore* store)
{
    student * p = store->head.next;
    while(p)
    {
        printf("ID = %d\t\t name = %s\n",p->id,p->name);
        p = p->next;
    
    }

}

//******************student 结构体****************//
struct student
{
    int id;
    char name[32];
    student *next;
};

struct Datastore
{
    student head ;
};

//*****************创建于销毁**********************/
Datastore * ds_create();

 void ds_destroy(Datastore* store);

 //************添加****************************//
void ds_add(Datastore* store,const student * data);
/*******************查找*********************/
student *ds_find(Datastore* store,int id);

/******************删除************************/
void ds_remove(Datastore* store,int id);

/******************打印************************/
void show_printf(Datastore* store);