本文实例为大家分享了c/c++实现图书信息管理系统的具体代码,供大家参考,具体内容如下
程序流程图
源代码
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
|
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
#define N 100
struct type{
char ISBN[N]; //ISBN编号(一般为13位)
char bookName[N]; //书名
char subject[N]; //科目
char editor[N]; //主编
float price; //价格
char publish[N]; //出版社
char date[N]; //日期
int num; //数量
struct type *next;
}Book;
typedef struct type * BooksManage;
void color( short x); //字体颜色
int password(); //管理员密码
void AdministratorMenu(); //管理员菜单
void VisitorMenu(); //游客菜单
void SaveBooksdata(BooksManage head); //将数据保存到文件中
void AddBooks(BooksManage *head); //添加图书信息
void ReadBooksdata(BooksManage *head); //将数据从文件中读取
void DelBooks_Subject(BooksManage head); //按所属学科删除图书信息
void DelBooks_ISBN(BooksManage head); //按ISBN删除图书信息
void ModifyBooks(BooksManage head); //修改图书信息
void FindBooks(BooksManage head); //查询图书信息
void PrintBooks(BooksManage head); //显示所有图书信息
void SumBooks(BooksManage head); //求全部图书价值
int main()
{
color(10); printf ( "\t\t\t\t\t* * * * * * * * * * * * * *\n" );
color(14); printf ( "\t\t\t\t\t* 题目:图书信息管理系统 *\n" );
color(11); printf ( "\t\t\t\t\t* 班级: *\n" );
color(12); printf ( "\t\t\t\t\t* 组员 *\n" );
color(11); printf ( "\t\t\t\t\t* 姓名 学号 *\n" );
color(10); printf ( "\t\t\t\t\t* 张三 100001 *\n" );
color(11); printf ( "\t\t\t\t\t* 李四 100002 *\n" );
color(14); printf ( "\t\t\t\t\t* 王五 100003 *\n" );
color(12); printf ( "\t\t\t\t\t* 日期 : 2019.03.19 *\n" );
color(10); printf ( "\t\t\t\t\t* * * * * * * * * * * * * *\n" );
system ( "title 图书信息管理系统" );
color(10);
BooksManage head = NULL;
ReadBooksdata(&head);
int choice,z,c;
printf ( "\n\n\n" );
printf ( "\t\t\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "\t\t\t\t\t\t欢迎光临图书信息管理系统\n" );
printf ( "\t\t\t--------------------------------------------------------\n" );
printf ( "\t\t\t\t\t\t【1】游客\n" );
printf ( "\t\t\t\t\t\t【2】管理员\n" );
printf ( "\t\t\t\t\t\t【3】退出系统\n" );
printf ( "\t\t\t--------------------------------------------------------\n" );
while ( printf ( "\t\t\t\t\t\t请选择身份:" )&& scanf ( "%d" ,&c)!=EOF)
{
if (c==1)
{
VisitorMenu();
while ( printf ( "\t\t\t\t\t\t请输入选择项(1-3):" )&& scanf ( "%d" ,&choice)!=EOF)
{
switch (choice)
{
case 1: /*查询图书信息*/
FindBooks(head);
break ;
case 2: /*显示所有图书信息*/
PrintBooks(head);
break ;
case 3: /*返回登录界面*/
main();
break ;
case 4:
exit (0);
default :
printf ( "\t\t\t\t\t输入错误!!!\n" );
system ( "pause" );
break ;
}
VisitorMenu();
}
}
else if (c==2)
{
z = password();
AdministratorMenu();
while ( printf ( "\t请输入选择项(1-8):" ) && z == 1 && scanf ( "%d" ,&choice) != EOF)
{
switch (choice)
{
case 1: /*录入图书信息*/
AddBooks(&head);
break ;
case 2: /*删除图书信息*/
int sign;
system ( "cls" );
color(10); printf ( "\t\t\t* * * * * * * * * * * * * * *\n" );
color(11); printf ( "\t\t\t*---------------------------*\n" );
color(12); printf ( "\t\t\t* 输入选择删除图书的方式 *\n" );
color(14); printf ( "\t\t\t*---------------------------*\n" );
color(11); printf ( "\t\t\t*【 1】按所属学科删除图书 *\n" );
color(12); printf ( "\t\t\t*---------------------------*\n" );
color(14); printf ( "\t\t\t*【 2】按图书ISBN号删除图书 *\n" );
color(11); printf ( "\t\t\t*---------------------------*\n" );
color(10); printf ( "\t\t\t* * * * * * * * * * * * * * *\n" );
scanf ( "\t\t\t%d" ,&sign);
if (sign == 1)
DelBooks_Subject(head);
else if (sign == 2)
DelBooks_ISBN(head);
break ;
case 3:
ModifyBooks(head);
break ;
case 4:
FindBooks(head);
break ;
case 5:
PrintBooks(head);
break ;
case 6:
SumBooks(head);
break ;
case 7:
main();
break ;
case 8:
SaveBooksdata(head);
exit (0);
default :
printf ( "\t输入错误!!!\n" );
system ( "pause" );
break ;
}
AdministratorMenu();
}
}
else if (c==3)
exit (0);
else
{
printf ( "\t\t\t输入错误!!!\n\n" );
}
}
return 0;
}
/**管理员密码*/
int password()
{
int i=0;
char user[10]= "admin" ;
char Code[10]= "admin" ;
char getuser[10];
char Getskey[10];
while (1)
{
printf ( "\t\t\t请输入账号:" );
scanf ( "%s" ,getuser);
printf ( "\t\t\t请输入密码:" );
while (1)
{
Getskey[i]=getch(); /*getch()函数在头文件conio.h中,函数作用为输入的内容不会在屏幕上显示*/
if (Getskey[i]== '\r' ) /* \b = 退格键(backspace)*/
break ; /* \r = 回车键(carrige return)*/
else if (Getskey[i]== '\b' )
{
if (i==0)
continue ;
printf ( "\b" );
printf ( " " );
printf ( "\b" );
i--;
}
else
{
printf ( "*" );
i++;
}
}
Getskey[i]= '\0' ;
if ( strcmp (user, getuser) == 0 && strcmp (Code, Getskey) == 0){
printf ( "\n\n\n\t\t\t密码正确,请稍等" );
printf ( "." );
Sleep(300);
printf ( "." );
Sleep(300);
printf ( "." );
Sleep(300);
printf ( "." );
Sleep(300);
printf ( "." );
Sleep(300);
printf ( "." );
Sleep(300);
return 1;
}
else
{
printf ( "\n\n\t\t\t账号不存在或密码输入错误,请重新输入\n" );
i = 0;
}
}
}
/**管理员菜单*/
void AdministratorMenu()
{
system ( "cls" ); //清屏
printf ( "\n\n\n\n\n" );
printf ( "\t************************************************************\n" );
printf ( "\t* *\n" );
printf ( "\t* 欢迎来到图书信息管理系统 *\n" );
printf ( "\t* *\n" );
printf ( "\t* *\n" );
printf ( "\t* 主菜单 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 1.录入图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 2.删除图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 3.修改图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 4.查询图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 5.显示所有图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 6.全部图书的总价值 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 7.返回登录界面 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 8.保存数据并退出系统 *\n" );
printf ( "\t* *\n" );
printf ( "\t************************************************************\n\n" );
}
/**游客菜单*/
void VisitorMenu()
{
system ( "cls" );
printf ( "\n\n\n\n\n" );
printf ( "\t************************************************************\n" );
printf ( "\t* *\n" );
printf ( "\t* 欢迎来到图书信息管理系统 *\n" );
printf ( "\t* *\n" );
printf ( "\t* *\n" );
printf ( "\t* 主菜单 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 1.查询图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 2.显示所有图书信息 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 3.返回登录界面 *\n" );
printf ( "\t* *\n" );
printf ( "\t* 4.退出系统 *\n" );
printf ( "\t* *\n" );
printf ( "\t************************************************************\n\n" );
}
/*将数据保存到文件中*/
void SaveBooksdata(BooksManage head)
{
BooksManage p;
FILE *fp;
fp = fopen ( "BooksDatabase.txt" , "w" );
p = head->next;
while (p->next != NULL){
fprintf (fp, "%s\t" ,p->ISBN);
fprintf (fp, "%s\t" ,p->bookName);
fprintf (fp, "%s\t" ,p->subject);
fprintf (fp, "%s\t" ,p->editor);
fprintf (fp, "%.2f\t" ,p->price);
fprintf (fp, "%s\t" ,p->publish);
fprintf (fp, "%s\t" ,p->date);
fprintf (fp, "%d\n" ,p->num);
p=p->next;
}
if (p->next == NULL){
fprintf (fp, "%s\t" ,p->ISBN);
fprintf (fp, "%s\t" ,p->bookName);
fprintf (fp, "%s\t" ,p->subject);
fprintf (fp, "%s\t" ,p->editor);
fprintf (fp, "%.2f\t" ,p->price);
fprintf (fp, "%s\t" ,p->publish);
fprintf (fp, "%s\t" ,p->date);
fprintf (fp, "%d" ,p->num);
}
fclose (fp);
return ;
}
/**将数据从文件中读取*/
void ReadBooksdata(BooksManage *head)
{
int n;
BooksManage s, p;
FILE *fp;
fp= fopen ( "BooksDatabase.txt" , "r" );
if (NULL == fp) {
head = NULL;
return ;
}
*head = (BooksManage) calloc (1, sizeof (Book));
p = *head;
while (! feof (fp))
{
s = (BooksManage) calloc (1, sizeof (Book));
fscanf (fp, "%s" ,s->ISBN); /*为下个结点分配内存空间 */
fscanf (fp, "%s" ,s->bookName);
fscanf (fp, "%s" ,s->subject);
fscanf (fp, "%s" ,s->editor);
fscanf (fp, "%f" ,&s->price);
fscanf (fp, "%s" ,s->publish);
fscanf (fp, "%s" ,s->date);
fscanf (fp, "%d" ,&s->num);
p->next=s; /*保存该结点*/
p=p->next; /*切换到下一个结点*/
p->next=NULL; /*保证最后一个结点为NULL*/
}
fclose (fp); /*关闭文件 */
return ;
}
/**字体颜色*/
void color( short x)
{
if (x>=0 && x<=15)
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), x);
else
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 7);
}
/**添加图书信息*/
void AddBooks(BooksManage *head)
{
int i;
BooksManage p, s;
system ( "cls" );
if (*head == NULL) {
*head = (BooksManage) calloc (1, sizeof (Book));
p = *head;
} else {
p = *head;
while (p->next)
p = p->next;
}
printf ( "\n\n\n" );
printf ( "\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "\t\t\t请问添加几本书:" );
scanf ( "%d" ,&i);
printf ( "\t--------------------------------------------------------\n" );
while (i)
{
s = (BooksManage) calloc (1, sizeof (Book));
printf ( "\t\t\t请输入ISBN号:" );
scanf ( "%s" ,s->ISBN);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入书名:" );
scanf ( "%s" ,s->bookName);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入书本的所属学科:" );
scanf ( "%s" ,s->subject);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入主编:" );
scanf ( "%s" ,s->editor);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入价格:" );
scanf ( "%f" ,&s->price);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入出版社:" );
scanf ( "%s" ,s->publish);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入出版日期:" );
scanf ( "%s" ,s->date);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\t\t\t请输入数量:" );
scanf ( "%d" ,&s->num);
printf ( "\t--------------------------------------------------------\n" );
printf ( "\n" );
printf ( "\t--------------------------------------------------------\n" );
i--;
p->next = s; /*保存输进去的这个结点*/
p = p->next; /*切换到下一个结点*/
p->next = NULL; /*最后一个结点为NULL*/
}
printf ( "\t\t\t图书添加成功!!!\n" );
system ( "pause" );
}
/*按所属学科删除图书信息*/
void DelBooks_Subject(BooksManage head)
{
system ( "cls" );
int flag=0;
char name[100],ch[10];
BooksManage p, t;
/**如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "没有记录图书信息!\n" );
system ( "pause" );
return ;
}
p = head;
printf ( "\n\n\n" );
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "请输入要删除的学科名字;" );
scanf ( "%s" ,&name);
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
while (p->next)
{
t=p;
p=p->next; /*转换到下一个结点*/
if ( strcmp (name,p->subject)==0)
{
flag=1;
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
break ;
}
}
if (flag==1)
{
printf ( "是否删除该本图书信息(y/n)" );
scanf ( "%s" ,ch);
printf ( "----------------------------------------------------------------------\n" );
if ( strcmp (ch, "Y" ) == 0 || strcmp (ch, "y" ) == 0)
{
t->next = p->next;
free (p);
printf ( "该书已删除!\n" );
}
else
return ;
}
else if (flag == 0)
printf ( "没找到那本书!\n" );
system ( "pause" );
}
/*按ISBN删除图书信息*/
void DelBooks_ISBN(BooksManage head)
{
system ( "cls" );
int flag=0;
char ch[10];
char ISBN[N];
BooksManage p, t;
/**如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "没有记录图书信息!\n" );
system ( "pause" );
return ;
}
p = head;
printf ( "\n\n\n" );
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "请输入要删除图书的ISBN号;" );
scanf ( "%s" ,ISBN);
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
while (p->next)
{
t=p;
p=p->next; /*转换到下一个结点*/
if ( strcmp (ISBN,p->ISBN)==0)
{
flag=1;
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
break ;
}
}
if (flag==1)
{
printf ( "是否删除该本图书信息(y/n)" );
scanf ( "%s" ,ch);
printf ( "----------------------------------------------------------------------\n" );
if ( strcmp (ch, "Y" ) == 0 || strcmp (ch, "y" ) == 0)
{
t->next = p->next;
free (p);
printf ( "该书已删除!\n" );
}
else
return ;
}
else if (flag == 0)
printf ( "没找到那本书!\n" );
system ( "pause" );
}
/*修改图书信息*/
void ModifyBooks(BooksManage head)
{
system ( "cls" );
int flag=0;
char name[100],ch[5];
BooksManage p, t;
/* 如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "没有记录图书信息!\n" );
system ( "pause" );
return ;
}
p = head;
printf ( "\n\n\n" );
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "请输入要修改的书名:" );
scanf ( "%s" ,name);
printf ( "--------------------------------------------------------------------\n" );
while (p->next)
{
p=p->next; /*切换到下一个结点*/
if ( strcmp (name,p->bookName)==0)
{
flag = 1;
t = p;
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
}
}
if (flag==1)
{
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t是否修改该本图书信息(y/n):" );
scanf ( "%s" ,ch);
printf ( "\t--------------------------------------------------------------------\n" );
if ( strcmp (ch, "Y" )==0|| strcmp (ch, "y" )==0)
{
int c;
printf ( "\t\t【1】ISBN号\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【2】书名\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【3】所属学科\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【4】主编\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【5】价格\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【6】出版社\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【7】出版日期\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t\t【8】数量\n" );
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t请输入你要修改的内容;" );
scanf ( "%d" ,&c);
printf ( "--------------------------------------------------------------------\n" );
p = t;
switch (c)
{
case 1:
printf ( "\t请输入ISBN号:" );
scanf ( "%s" ,p->ISBN);
break ;
case 2:
printf ( "\t请输入书名:" );
scanf ( "%s" ,p->bookName);
break ;
case 3:
printf ( "\t请输入所属学科:" );
scanf ( "%s" ,p->subject);
break ;
case 4:
printf ( "\t请输入主编:" );
scanf ( "%s" ,p->editor);
break ;
case 5:
printf ( "\t请输入价格:" );
scanf ( "%f" ,&p->price);
break ;
case 6:
printf ( "\t请输入出版社:" );
scanf ( "%s" ,p->publish);
break ;
case 7:
printf ( "\t请输入出版日期:" );
scanf ( "%s" ,p->date);
break ;
case 8:
printf ( "\t请输入数量:" );
scanf ( "%d" ,&p->num);
break ;
}
printf ( "--------------------------------------------------------------------\n" );
printf ( "\t修改成功!!!\n" );
}
}
else if (flag == 0)
printf ( "对不起,该书库没有该书\n" );
system ( "pause" );
}
/**显示所有图书信息*/
void PrintBooks(BooksManage head)
{
BooksManage p;
system ( "cls" );
/**如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "没有记录图书信息!\n" );
system ( "pause" ); //提示任意键继续
return ;
}
p = head->next;
printf ( "\n\n\n" );
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( " 图书列表\n" );
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
do
{
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
p = p->next;
} while (p!=NULL);
system ( "pause" );
}
/**求全部图书价值*/
void SumBooks(BooksManage head){
float sum = 0;
system ( "cls" );
BooksManage p;
/* 如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "\t\t\t\t没有图书信息!\n" );
return ;
}
for (p = head;p != NULL; p = p->next){
sum += p->price * p->num;
}
printf ( "\n\n\n\n\n\n" );
printf ( "\t\t\t***********************************\n" );
color(12); printf ( "\t\t\t* 全部图书的总价值为:%.2f *\n" ,sum);
color(10); printf ( "\t\t\t***********************************\n" );
system ( "pause" );
}
/*查询图书信息*/
void FindBooks(BooksManage head)
{
system ( "cls" );
int choose,flag = 0;
BooksManage p;
char b[100];
char ISBN[N];
/* 如果表头为空 */
if (head == NULL || head->next == NULL) {
printf ( "没有记录图书信息!\n" );
system ( "pause" );
return ;
}
do
{
system ( "cls" );
printf ( "\n\n\n" );
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "\t\t1.按书名查找\n" );
printf ( "----------------------------------------------------------------------\n" );
printf ( "\t\t2.按ISBN号查找\n" );
printf ( "----------------------------------------------------------------------\n" );
printf ( "\t\t返回主菜单(其他数字)\n" );
printf ( "----------------------------------------------------------------------\n" );
printf ( "\t\t请输入您的选择:" );
scanf ( "%d" ,&choose);
printf ( "----------------------------------------------------------------------\n" );
p=head;
if (choose == 1)
{
printf ( "输入所查书名:" );
scanf ( "%s" ,b);
printf ( "----------------------------------------------------------------------\n\n" );
while (p->next)
{
p=p->next; /*转换到下一个结点*/
if ( strcmp (b,p->bookName)==0) /*判断是否找到并输出*/
{
flag=1;
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
}
}
if (flag==0)
printf ( "不存在该信息\n" );
}
else if (choose==2)
{
printf ( "输入所查ISBN号:" );
scanf ( "%s" ,ISBN);
printf ( "----------------------------------------------------------------------\n\n" );
while (p->next)
{
p=p->next; /*转换到下一个结点*/
if ( strcmp (p->ISBN,ISBN) == 0) /*判断是否找到并输出*/
{
flag=1;
printf ( "※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n" );
printf ( "ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n" );
printf ( "------------------------------------------------------------------------------------\n" );
printf ( "%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n" ,p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);
}
}
if (flag == 0)
printf ( "不存在该信息\n" );
}
else
return ;
system ( "pause" );
} while (1);
}
|
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/qq_21579293/article/details/88886373