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這篇文章主要介紹“怎么用C語言實現圖書管理系統”的相關知識，小編通過實際案例向大家展示操作過程，操作方法簡單快捷，實用性強，希望這篇“怎么用C語言實現圖書管理系統”文章能幫助大家解決問題。
設計圖書管理系統
要求如下：
1.對書名，作者，編號，出版單位，出版日期，類別，存放位置進行添加、刪除、修改
2.查詢相關信息
3.保存所有信息
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <conio.h>
typedef struct book /*定義結構體*/
{
char bookname[100] ; /*書名*/
char writer[100]; /*作者*/
char classnumber[100]; /*編號*/
char publisher[100]; /*出版單位*/
char time[100]; /*出版日期*/
char type[100]; /*類別*/
char place[100]; /*存放位置*/
struct book *next;
}Book;
int mima()
{
int i=0;
char user[10]="aa";
char Code[10]="123456";
char getuser[10];
char Getskey[10];
while(1)
{
printf("\t\t\t請輸入賬號：");
scanf("%s",getuser);
printf("\t\t\t請輸入密碼：");
while(1)
{
Getskey[i]=getch();
if(Getskey[i]=='\r')
break;
else if(Getskey[i]=='\b')
{
if(i==0)
continue;
printf("\b");
printf(" ");
printf("\b");
i--;
}
else
{
printf("*");
i++;
}
}
Getskey[6]='\0';
if(strcmp(user, getuser)==0&&strcmp(Code, Getskey)==0)
return 1;
else
{
printf("\n\n\t\t\t賬號不存在或密碼輸入錯誤，請重新輸入\n");
i = 0;
}
}
}
void showmenu1() /*顯示管理員菜單*/
{
system("cls");
printf("\n\n\n\n\n");
printf("\t \n");
printf("\t 歡迎來到圖書信息管理系統 \n");
printf("\t \n");
printf("\t \n");
printf("\t 主菜單 \n");
printf("\t \n");
printf("\t 1.錄入圖書信息 \n");
printf("\t \n");
printf("\t 2.刪除圖書信息 \n");
printf("\t \n");
printf("\t 3.修改圖書信息 \n");
printf("\t \n");
printf("\t 4.查詢圖書信息 \n");
printf("\t \n");
printf("\t 5.顯示所有圖書信息 \n");
printf("\t \n");
printf("\t 6.返回登錄界面 \n");
printf("\t \n");
printf("\t 7.保存數據并退出系統 \n");
printf("\t \n");
}
void showmenu2() /*顯示游客菜單*/
{
system("cls");
printf("\n\n\n\n\n");
printf("\t \n");
printf("\t 歡迎來到圖書信息管理系統 \n");
printf("\t \n");
printf("\t \n");
printf("\t 主菜單 \n");
printf("\t \n");
printf("\t 1.查詢圖書信息 \n");
printf("\t \n");
printf("\t 2.顯示所有圖書信息 \n");
printf("\t \n");
printf("\t 3.返回登錄界面 \n");
printf("\t \n");
printf("\t 4.退出系統 \n");
printf("\t \n");
}
int savebookdata(Book *head) /*將數據保存到文件中*/
{
Book *p;
FILE*fp;
fp=fopen("D:\\java\\zuoye.txt","w");
p=head->next;
do
{
fprintf(fp,"%s\t",p->bookname); /* 把這個結點的數據全部寫入至文件內由于next指針不需要寫入至文件，*/
fprintf(fp,"%s\t",p->writer); /*因此，數據大小就是sizeof(book)-sizeof(book*)總數據大小減去指針的大小 */
fprintf(fp,"%s\t",p->classnumber);
fprintf(fp,"%s\t",p->publisher);
fprintf(fp,"%s\t",p->time);
fprintf(fp,"%s\t",p->type);
fprintf(fp,"%s\t\n",p->place);
fprintf(fp,"\n");
p=p->next; /*轉換到下一個結點*/
}while(p!=NULL);
fclose(fp);
return 0;
}
void addnewbook(Book **head) /*錄入圖書信息*/
{
int i;
Book *p,*s;
system("cls");
if(*head == NULL) { /* 如果表頭為空，先為它分配內存 */
*head = (Book *)calloc(1, sizeof(Book));
p = *head;
} else { /* 否則，就說明有內容，直接切換到尾結點 */
p = *head;
while(p->next)
p = p->next;
}
printf("\n\n\n");
printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("\t\t\t請問添加幾本書：");
scanf("%d",&i);
printf("\t--------------------------------------------------------\n");
while(i)
{
s = (Book *)calloc(1, sizeof(Book)); /*為這個結點分配內存 */
printf("\t\t\t請輸入書名：");
scanf("%s",s->bookname);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入作者：");
scanf("%s",s->writer);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入編號：");
scanf("%s",s->classnumber);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入出版單位：");
scanf("%s",s->publisher);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入出版日期：");
scanf("%s",s->time);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入類別：");
scanf("%s",s->type);
printf("\t--------------------------------------------------------\n");
printf("\t\t\t請輸入存放位置：");
scanf("%s",s->place);
printf("\t--------------------------------------------------------\n");
printf("\n");
printf("\t--------------------------------------------------------\n");
i--;
p->next=s; /*保存輸進去的這個結點*/
p=p->next; /*切換到下一個結點*/
p->next=NULL; /*最后一個結點為NULL*/
}
printf("\t\t\t圖書添加成功!!!\n");
system("pause");
}
int readbookdata(Book **head) /*將數據從文件中讀取*/
{
int n;
Book *s, *p;
FILE *fp;
fp=fopen("d:\\java\\zuoye.txt","r");
/* 如果文件打開失敗，就返回-1 */
if(NULL == fp) {
*head = NULL;
return -1;
}
*head = (Book *)calloc(1, sizeof(Book));
p = *head;
while (!feof(fp))
{
s = (Book *)calloc(1, sizeof(Book)); /* 為下個結點分配內存空間 */
fscanf(fp,"%s",s->bookname);
fscanf(fp,"%s",s->writer);
fscanf(fp,"%s",s->classnumber);
fscanf(fp,"%s",s->publisher);
fscanf(fp,"%s",s->time);
fscanf(fp,"%s",p->type);
fscanf(fp,"%s\n",p->place);
p->next=s; /*保存該結點*/
p=p->next; /*切換到下一個結點*/
p->next=NULL; /*保證最后一個結點為NULL*/
}
fclose(fp);/* 關閉文件 */
return 0;
}
void deletebook(Book *head) /*刪除圖書信息*/
{
system("cls");
int flag=0;
char name[100],ch[10];
Book *p,*t;
/* 如果表頭為空 */
if(head == NULL || head->next == NULL) {
printf("沒有記錄圖書信息！\n");
system("pause");
return;
}
p=head;
printf("\n\n\n");
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("請輸入要刪除的書名；");
scanf("%s",&name);
printf("----------------------------------------------------------------------\n");
printf("書名\t\t作者名\t\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------\n");
while(p->next)
{
t=p;
p=p->next; /*轉換到下一個結點*/
if(strcmp(name,p->bookname)==0)
{
flag=1;
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
break;
}
}
if(flag==1)
{
printf("是否刪除該本圖書信息（y/n）");
scanf("%s",ch);
printf("----------------------------------------------------------------------\n");
if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
{
t->next=p->next;
printf("該書已刪除！\n");
}
else
return;
}
else if(flag==0)
printf("沒找到那本書！\n");
system("pause");
}
void modifybook(Book *head) /*修改圖書信息*/
{
system("cls");
int flag=0;
char name[100],ch[10];
Book *p,*t;
/* 如果表頭為空 */
if(head == NULL || head->next == NULL) {
printf("沒有記錄圖書信息！\n");
system("pause");
return ;
}
p=head;
printf("\n\n\n");
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("請輸入要修改的書名:");
scanf("%s",name);
printf("--------------------------------------------------------------------\n");
while(p->next)
{
p=p->next; /*切換到下一個結點*/
if(strcmp(name,p->bookname)==0)
{
flag=1;
t=p;
printf("書名\t\t作者名\t\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("--------------------------------------------------------------------\n");
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
}
}
if(flag==1)
{
printf("--------------------------------------------------------------------\n");
printf("\t\t是否修改該本圖書信息（y/n）:");
scanf("%s",ch);
printf("\t--------------------------------------------------------------------\n");
if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
{
int c;
printf("\t\t【1】書名\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【2】作者\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【3】編號\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【4】出版單位\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【5】出版日期\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【6】類別\n");
printf("--------------------------------------------------------------------\n");
printf("\t\t【7】存放位置\n");
printf("--------------------------------------------------------------------\n");
printf("\t請輸入你要修改的內容；");
scanf("%d",&c);
printf("--------------------------------------------------------------------\n");
p=t;
switch(c)
{
case 1:
printf("\t請輸入書名：");
scanf("%s",p->bookname);
break;
case 2:
printf("\t請輸入作者：");
scanf("%s",p->writer);
break;
case 3:
printf("\t請輸入編號：");
scanf("%s",p->classnumber);
break;
case 4:
printf("\t請輸入出版單位：");
scanf("%s",p->publisher);
break;
case 5:
printf("\t請輸入出版日期：");
scanf("%s",p->time);
break;
case 6:
printf("\t請輸入類別：");
scanf("%s",p->type);
break;
case 7:
printf("\t請輸入存放位置：");
scanf("%s",p->place);
break;
}
printf("--------------------------------------------------------------------\n");
printf("\t恭喜大佬修改成功!!!\n");
}
}
else if(flag==0)
printf("對不起，該書庫沒有該書\n");
system("pause");
}
void searchbook(Book *head) /*查詢圖書信息*/
{
system("cls");
int choose,flag=0;
Book *p;
char b[100];
/* 如果表頭為空 */
if(head == NULL || head->next == NULL) {
printf("沒有記錄圖書信息！\n");
system("pause");
return ;
}
do
{
system("cls");
printf("\n\n\n");
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("\t\t1.按書名查找\n");
printf("----------------------------------------------------------------------\n");
printf("\t\t2.按作者名查找\n");
printf("----------------------------------------------------------------------\n");
printf("\t\t3.按編號查找\n");
printf("----------------------------------------------------------------------\n");
printf("\t\t4.按出版單位查找\n");
printf("----------------------------------------------------------------------\n");
printf("\t\t返回主菜單(其他數字)\n");
printf("----------------------------------------------------------------------\n");
printf("\t\t請輸入您的選擇：");
scanf("%d",&choose);
printf("----------------------------------------------------------------------\n");
p=head;
if(choose==1)
{
printf("輸入所查書名：");
scanf("%s",b);
printf("----------------------------------------------------------------------\n\n");
while(p->next)
{
p=p->next; /*轉換到下一個結點*/
if(strcmp(b,p->bookname)==0) /*判斷是否找到并輸出*/
{
flag=1;
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("書名\t作者名\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------\n");
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
}
}
if(flag==0)
printf("不存在該信息\n");
}
else if(choose==2)
{
printf("輸入所查作者名：");
scanf("%s",b);
printf("----------------------------------------------------------------------\n\n");
while(p->next)
{
p=p->next; /*轉換到下一個結點*/
if(strcmp(b,p->writer)==0) /*判斷是否找到并輸出*/
{
flag=1;
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("書名\t作者名\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------\n");
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
}
}
if(flag==0)
printf("不存在該信息\n");
}
else if(choose==3)
{
printf("輸入所查編號：");
scanf("%s",b);
printf("----------------------------------------------------------------------\n\n");
while(p->next)
{
p=p->next; /*轉換到下一個結點*/
if(strcmp(b,p->classnumber)==0) /*判斷是否找到并輸出*/
{
flag=1;
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("書名\t作者名\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------\n");
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
}
}
if(flag==0)
printf("不存在該信息\n");
}
else if(choose==4)
{
printf("輸入所查出版單位：");
scanf("%s",b);
printf("----------------------------------------------------------------------\n\n");
while(p->next)
{
p=p->next; /*轉換到下一個結點*/
if(strcmp(b,p->publisher)==0) /*判斷是否找到并輸出*/
{
flag=1;
printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("書名\t作者名\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------\n");
printf("%s\t%s\t%s\t%s\t%s%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
}
}
if(flag==0)
printf("不存在該信息\n");
}
else
return;
system("pause");
}while(1);
}
int printfbook(Book *head) /*顯示所有圖書信息*/
{
Book *p;
system("cls");
/* 如果表頭為空 */
if(head == NULL || head->next == NULL) {
printf("沒有記錄圖書信息！\n");
system("pause");
return 0;
}
p=head->next;
printf("\n\n\n");
printf("**********************************************************************************\n");
printf(" 圖書列表 \n");
printf("----------------------------------------------------------------------------------\n");
printf("書名\t作者\t編號\t出版單位\t出版時間\t類別\t存放位置\n");
printf("----------------------------------------------------------------------------------\n");
do
{
printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place);
p=p->next; /*轉換到下一個結點*/
}while(p!=NULL);
system("pause");
}
int main(void)
{
system("cls");
Book *head=NULL;
readbookdata(&head);
int choice,z,c;
printf("\n\n\n");
printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");
printf("\t\t\t歡迎光臨圖書信息管理系統\n");
printf("\t--------------------------------------------------------\n");
printf("\t\t\t【1】游客\n");
printf("\t\t\t【2】管理員\n");
printf("\t\t\t【3】退出系統\n");
printf("\t--------------------------------------------------------\n");
while(printf("\t\t\t請選擇身份：")&&scanf("%d",&c)!=EOF)
{
if(c==1)
{
showmenu2();
while (printf("\t請輸入選擇項(1-3):")&&scanf("%d",&choice)!=EOF)
{
switch (choice)
{
case 1: /*查詢圖書信息*/
searchbook(head);
break;
case 2: /*顯示所有圖書信息*/
printfbook(head);
break;
case 3: /*返回登錄界面*/
main();
break;
case 4:
exit(0);
default:
printf("\t輸入錯誤!!!\n");
system("pause");
break;
}
showmenu2();
}
}
else if(c==2)
{
z=mima();
showmenu1();
while (printf("\t請輸入選擇項(1-6):")&&z==1&&scanf("%d",&choice)!=EOF)
{
switch (choice)
{
case 1: /*錄入圖書信息*/
addnewbook(&head);
break;
case 2: /*刪除圖書信息*/
deletebook(head);
break;
case 3: /*修改圖書信息*/
modifybook(head);
break;
case 4: /*查詢圖書信息*/
searchbook(head);
break;
case 5: /*顯示所有圖書信息*/
printfbook(head);
break;
case 6: /*返回登錄界面*/
main();
break;
case 7: /*保存數據并退出系統*/
savebookdata(head);
exit(0);
default:
printf("\t輸入錯誤!!!\n");
system("pause");
break;
}
showmenu1();
}
}
else if(c==3)
exit(0);
else
{
printf("\t\t\t輸入錯誤!!!\n\n");
}
}
return 0;
}這里提供的是管理員身份
這里提供游客身份（供選擇的功能相對管理員少）
關于“怎么用C語言實現圖書管理系統”的內容就介紹到這里了，感謝大家的閱讀。如果想了解更多行業相關的知識，可以關注億速云行業資訊頻道，小編每天都會為大家更新不同的知識點。
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