C语言

#include

#include

#include

#include

struct books_list

{

char author[20];

char bookname[20];

char publisher[20];

char pbtime[15];

char loginnum[10];

float price;

char classfy[10];

struct books_list * next;

};

struct books_list * Create_Books_Doc();

void InsertDoc(struct books_list * head);

void DeleteDoc(struct books_list * head , int num);

void Print_Book_Doc(struct books_list * head);

void search_book(struct books_list * head);

void info_change(struct books_list * head);

void save(struct books_list * head);

struct books_list * Create_Books_Doc()

{

struct books_list * head;

head=(struct books_list *)malloc(sizeof(struct books_list));

head->next=NULL;

return head;

}

void save(struct books_list * head)

{

struct books_list *p;

FILE *fp;

p=head;

fp=fopen("data.txt","w+");

fprintf(fp,"登ì?录?号? 书o¨|名? 作á??者? 出?版??单ì￡¤位? 出?版??时o?à间? 分¤?类¤¨¤号? 价?格? \n");

while(p->next!= NULL)

{

p=p->next;

fprintf(fp,"%-6.6s%-10.10s%-10.10s%-10.10s%-12.12s%-6.6s%.2f

\n",p->loginnum,p->bookname,p->author,p->publisher,p->pbtime,p->classfy,p->price);

fclose(fp);

printf(" 已??将?图a?书o¨|数oy据Y保à?ê存??到ì? data.txt 文?件t\n"); }

void InsertDoc(struct books_list *head)

{

struct books_list *s, *p;

char flag='Y';

p=head;

while(p->next!= NULL)

{

p=p->next;

}

while(flag=='Y'||flag=='y')

{

s=(struct books_list *)malloc(sizeof(struct books_list));

printf("\n 请?输o?入¨?图a?书o¨|登ì?陆?号?:");

fflush(stdin);

scanf("%s",s->loginnum);

printf("\n 请?输o?入¨?图a?书o¨|书o¨|名?:");

fflush(stdin);

scanf("%s",s->bookname);

printf("\n 请?输o?入¨?图a?书o¨|作á??者?名?:");

fflush(stdin);

scanf("%s",s->author);

printf("\n 请?输o?入¨?图a?书o¨|出?版??社|?:");

fflush(stdin);

scanf("%s",s->publisher);

printf("\n 请?输o?入¨?图a?书o¨|出?版??时o?à间?:");

fflush(stdin);

scanf("%s",s->pbtime);

printf("\n 请?输o?入¨?图a?书o¨|分¤?类¤¨¤号?:");

fflush(stdin);

scanf("%s",s->classfy);

printf("\n 请?输o?入¨?图a?书o¨|价?格?:");

fflush(stdin);

scanf("%f",&s->price);

printf("\n");

p->next=s;

p=s;

s->next=NULL;

printf(" 添?¨a加¨?成¨|功|！ê?");

printf("\n 继¨?续?添?¨a加¨?？ê?(Y/N):");

fflush(stdin);

scanf("%c",&flag);

printf("\n");

if(flag=='N'||flag=='n')

{break;}

elseif(flag=='Y'||flag=='y')

{continue;}

}

save(head);

return;

}

void search_book(struct books_list *head)

{

struct books_list * p;

char temp[20];

p=head;

if(head==NULL || head->next==NULL)

{

printf(" 图a?书o¨|库a为a空?！ê?\n"); }

else

{

printf("请?输o?入¨?您¨2要?a查¨|找¨?的ì?书o¨|名?: "); fflush(stdin);

scanf("%s",temp);

while(p->next!= NULL)

{

p=p->next;

if(strcmp(p->bookname,temp)==0)

{

printf("\n图a?书o¨|已??找¨?到ì?!\n");

printf("\n");

printf("登ì?录?号?: %s\t\n",p->loginnum);

printf("书o¨|名?: %s\t\n",p->bookname);

printf("作á??者?名?: %s\t\n",p->author);

printf("出?版??单ì￡¤位?: %s\t\n",p->publisher);

printf("出?版??时o?à间?: %s\t\n",p->pbtime);

printf("分¤?类¤¨¤号?: %s\t\n",p->classfy);

printf("价?格?: %.2f\t\n",p->price);

}

if(p->next==NULL)

{

printf("\n查¨|询?￥完a¨o毕à?!\n");

}

}

}

return;

}

void Print_Book_Doc(struct books_list * head)

{

struct books_list * p;

if(head==NULL || head->next==NULL)

{

printf("\n 没?有?D图a?书o¨|记?录?! \n\n");

return;

}

p=head;

printf("登ì?录?号? 书o¨| 名? 作á?? 者? 出?版??单ì￡¤位? 出?版??时o?à间? 分¤?类

¤¨¤号? 价?格? \n");

while(p->next!= NULL)

{

p=p->next;

printf("%-6.6s%-10.10s%-10.10s%-10.10s%-12.12s%-6.6s%.2f

\n",p->loginnum,p->bookname,p->author,p->publisher,p->pbtime,p->classfy,p->price); /*循-环?¤输o?出?表à¨a格?*/

}

printf("\n");

}

void info_change(struct books_list * head)

{

struct books_list * p;

int panduan=0;

char temp[20];

p=head;

printf("请?输o?入¨?要?a修T改?的ì?书o¨|名?:");

scanf("%s",temp);

while(p->next!= NULL)

{

p=p->next;

if(strcmp(p->bookname,temp)==0)

{

printf("\n 请?输o?入¨?图a?书o¨|登ì?陆?卡?§号?:");

fflush(stdin);

scanf("%s",p->loginnum);

printf("\n 请?输o?入¨?图a?书o¨|书o¨|名?:");

fflush(stdin);

scanf("%s",p->bookname);

printf("\n 请?输o?入¨?图a?书o¨|作á??者?名?:");

fflush(stdin);

scanf("%s",p->author);

printf("\n 请?输o?入¨?图a?书o¨|出?版??社|?:");

fflush(stdin);

scanf("%s",p->publisher);

printf("\n 请?输o?入¨?图a?书o¨|出?版??时o?à间?:");

fflush(stdin);

scanf("%s",p->pbtime);

printf("\n 请?输o?入¨?图a?书o¨|分¤?类¤¨¤号?:");

fflush(stdin);

scanf("%s",p->classfy);

printf("\n 请?输o?入¨?图a?书o¨|价?格?:");

fflush(stdin);

scanf("%f",&p->price);

printf("\n");

panduan=1;

}

}

if(panduan==0)

{

printf("\n 没?有?D图a?书o¨|记?录?! \n\n");

}

return;

}

void DeleteDoc(struct books_list * head)

{

struct books_list *s,*p;

char temp[20];

int panduan;

panduan=0;

p=s=head;

printf(" [请?输o?入¨?您¨2要?a删|?除y的ì?书o¨|名?]:");

scanf("%s",temp);

while(p!= NULL)

{

if(strcmp(p->bookname,temp)==0)

{

panduan++;

break;

}

p=p->next;

}

if(panduan==1)

{

for(;s->next!=p;)

{

s=s->next;

}

s->next=p->next;

free(p);

printf("\n ━￡¤━￡¤━￡¤━￡¤ 删|?除y成¨|功|!

━￡¤━￡¤━￡¤━￡¤\n");

}

else

{

printf(" 您¨2输o?入¨?的ì?书o¨|目?不?存??在¨2，ê?请?确¨?¤认¨?后¨?输o?入¨?!\n");

return;

}

int main(void)

{

struct books_list * head;

char choice;

head=NULL;

for(;;)

{

printf(" socat图a?书o¨|管¨1理¤¨a系|ì统a3 \n"); printf(" [1]图a?书o¨|信?息?é录?入¨? \n");

printf(" [2]图a?书o¨|信?息?é浏?￥览¤¨¤ \n"); printf(" [3]图a?书o¨|信?息?é查¨|询?￥ \n"); printf(" [4]图a?书o¨|信?息?é修T改? \n");

printf(" [5]图a?书o¨|信?息?é删|?除y \n");

printf(" [6]退a?出?系|ì统a3 \n");

printf(" 请?选?择?:");

fflush(stdin);

scanf("%c",&choice);

if(choice=='1')

{

if(head==NULL)

{

head=Create_Books_Doc();

}

InsertDoc(head);

}

elseif(choice=='2')

{

Print_Book_Doc(head);

}

elseif(choice=='3')

{

search_book(head);

}

elseif(choice=='4')

{

info_change(head);

}

elseif(choice=='5')

{

DeleteDoc(head);

}

elseif(choice=='6')

{

printf("\n");

printf(" ━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤ 感D谢?使o1用??图a?书o¨|管¨1理¤¨a系|ì统a3 ━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤━￡¤\n");

break;

else

{

printf(" ━￡¤━￡¤━￡¤━￡¤请?输o?入¨?1-6━￡¤━￡¤━￡¤━￡¤"); break;

}

}

return 0;

}