怎么用C语言实现图书管理系统(c语言,开发技术)

设计要求

设计图书管理系统

要求如下：

1.对书名，作者，编号，出版单位，出版日期，类别，存放位置进行添加、删除、修改
2.查询相关信息
3.保存所有信息

实现代码

#include<stdio.h>#include<string.h>#include<stdlib.h>#include<conio.h>typedefstructbook/*定义结构体*/{charbookname[100];/*书名*/charwriter[100];/*作者*/charclassnumber[100];/*编号*/charpublisher[100];/*出版单位*/chartime[100];/*出版日期*/chartype[100];/*类别*/charplace[100];/*存放位置*/structbook*next;}Book;intmima(){inti=0;charuser[10]="aa";charCode[10]="123456";chargetuser[10];charGetskey[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();if(Getskey[i]=='\r')break;elseif(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)return1;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;}}}voidshowmenu1()/*显示管理员菜单*/{system("cls");printf("\n\n\n\n\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("\t1.录入图书信息\n");printf("\t\n");printf("\t2.删除图书信息\n");printf("\t\n");printf("\t3.修改图书信息\n");printf("\t\n");printf("\t4.查询图书信息\n");printf("\t\n");printf("\t5.显示所有图书信息\n");printf("\t\n");printf("\t6.返回登录界面\n");printf("\t\n");printf("\t7.保存数据并退出系统\n");printf("\t\n");}voidshowmenu2()/*显示游客菜单*/{system("cls");printf("\n\n\n\n\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("\t1.查询图书信息\n");printf("\t\n");printf("\t2.显示所有图书信息\n");printf("\t\n");printf("\t3.返回登录界面\n");printf("\t\n");printf("\t4.退出系统\n");printf("\t\n");}intsavebookdata(Book*head)/*将数据保存到文件中*/{Book*p;FILE*fp;fp=fopen("D:\\java\\zuoye.txt","w");p=head->next;do{fprintf(fp,"%s\t",p->bookname);/*把这个结点的数据全部写入至文件内由于next指针不需要写入至文件，*/fprintf(fp,"%s\t",p->writer);/*因此，数据大小就是sizeof(book)-sizeof(book*)总数据大小减去指针的大小*/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;/*转换到下一个结点*/}while(p!=NULL);fclose(fp);return0;}voidaddnewbook(Book**head)/*录入图书信息*/{inti;Book*p,*s;system("cls");if(*head==NULL){/*如果表头为空，先为它分配内存*/*head=(Book*)calloc(1,sizeof(Book));p=*head;}else{/*否则，就说明有内容，直接切换到尾结点*/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=(Book*)calloc(1,sizeof(Book));/*为这个结点分配内存*/printf("\t\t\t请输入书名：");scanf("%s",s->bookname);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入作者：");scanf("%s",s->writer);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入编号：");scanf("%s",s->classnumber);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入出版单位：");scanf("%s",s->publisher);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入出版日期：");scanf("%s",s->time);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入类别：");scanf("%s",s->type);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入存放位置：");scanf("%s",s->place);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");}intreadbookdata(Book**head)/*将数据从文件中读取*/{intn;Book*s,*p;FILE*fp;fp=fopen("d:\\java\\zuoye.txt","r");/*如果文件打开失败，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));/*为下个结点分配内存空间*/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*/return0;}voiddeletebook(Book*head)/*删除图书信息*/{system("cls");intflag=0;charname[100],ch[10];Book*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("请输入要删除的书名；");scanf("%s",&name);printf("----------------------------------------------------------------------\n");printf("书名\t\t作者名\t\t编号\t出版单位\t出版时间\t类别\t存放位置\n");printf("----------------------------------------------------------------------\n");while(p->next){t=p;p=p->next;/*转换到下一个结点*/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;printf("该书已删除！\n");}elsereturn;}elseif(flag==0)printf("没找到那本书！\n");system("pause");}voidmodifybook(Book*head)/*修改图书信息*/{system("cls");intflag=0;charname[100],ch[10];Book*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("书名\t\t作者名\t\t编号\t出版单位\t出版时间\t类别\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是否修改该本图书信息（y/n）:");scanf("%s",ch);printf("\t--------------------------------------------------------------------\n");if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0){intc;printf("\t\t【1】书名\n");printf("--------------------------------------------------------------------\n");printf("\t\t【2】作者\n");printf("--------------------------------------------------------------------\n");printf("\t\t【3】编号\n");printf("--------------------------------------------------------------------\n");printf("\t\t【4】出版单位\n");printf("--------------------------------------------------------------------\n");printf("\t\t【5】出版日期\n");printf("--------------------------------------------------------------------\n");printf("\t\t【6】类别\n");printf("--------------------------------------------------------------------\n");printf("\t\t【7】存放位置\n");printf("--------------------------------------------------------------------\n");printf("\t请输入你要修改的内容；");scanf("%d",&c);printf("--------------------------------------------------------------------\n");p=t;switch(c){case1:printf("\t请输入书名：");scanf("%s",p->bookname);break;case2:printf("\t请输入作者：");scanf("%s",p->writer);break;case3:printf("\t请输入编号：");scanf("%s",p->classnumber);break;case4:printf("\t请输入出版单位：");scanf("%s",p->publisher);break;case5:printf("\t请输入出版日期：");scanf("%s",p->time);break;case6:printf("\t请输入类别：");scanf("%s",p->type);break;case7:printf("\t请输入存放位置：");scanf("%s",p->place);break;}printf("--------------------------------------------------------------------\n");printf("\t恭喜大佬修改成功!!!\n");}}elseif(flag==0)printf("对不起，该书库没有该书\n");system("pause");}voidsearchbook(Book*head)/*查询图书信息*/{system("cls");intchoose,flag=0;Book*p;charb[100];/*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.按作者名查找\n");printf("----------------------------------------------------------------------\n");printf("\t\t3.按编号查找\n");printf("----------------------------------------------------------------------\n");printf("\t\t4.按出版单位查找\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("书名\t作者名\t编号\t出版单位\t出版时间\t类别\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("不存在该信息\n");}elseif(choose==2){printf("输入所查作者名：");scanf("%s",b);printf("----------------------------------------------------------------------\n\n");while(p->next){p=p->next;/*转换到下一个结点*/if(strcmp(b,p->writer)==0)/*判断是否找到并输出*/{flag=1;printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\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("不存在该信息\n");}elseif(choose==3){printf("输入所查编号：");scanf("%s",b);printf("----------------------------------------------------------------------\n\n");while(p->next){p=p->next;/*转换到下一个结点*/if(strcmp(b,p->classnumber)==0)/*判断是否找到并输出*/{flag=1;printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\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("不存在该信息\n");}elseif(choose==4){printf("输入所查出版单位：");scanf("%s",b);printf("----------------------------------------------------------------------\n\n");while(p->next){p=p->next;/*转换到下一个结点*/if(strcmp(b,p->publisher)==0)/*判断是否找到并输出*/{flag=1;printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\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("不存在该信息\n");}elsereturn;system("pause");}while(1);}intprintfbook(Book*head)/*显示所有图书信息*/{Book*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");return0;}p=head->next;printf("\n\n\n");printf("**********************************************************************************\n");printf("图书列表\n");printf("----------------------------------------------------------------------------------\n");printf("书名\t作者\t编号\t出版单位\t出版时间\t类别\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;/*转换到下一个结点*/}while(p!=NULL);system("pause");}intmain(void){system("cls");Book*head=NULL;readbookdata(&head);intchoice,z,c;printf("\n\n\n");printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("\t\t\t欢迎光临图书信息管理系统\n");printf("\t--------------------------------------------------------\n");printf("\t\t\t【1】游客\n");printf("\t\t\t【2】管理员\n");printf("\t\t\t【3】退出系统\n");printf("\t--------------------------------------------------------\n");while(printf("\t\t\t请选择身份：")&&scanf("%d",&c)!=EOF){if(c==1){showmenu2();while(printf("\t请输入选择项(1-3):")&&scanf("%d",&choice)!=EOF){switch(choice){case1:/*查询图书信息*/searchbook(head);break;case2:/*显示所有图书信息*/printfbook(head);break;case3:/*返回登录界面*/main();break;case4:exit(0);default:printf("\t输入错误!!!\n");system("pause");break;}showmenu2();}}elseif(c==2){z=mima();showmenu1();while(printf("\t请输入选择项(1-6):")&&z==1&&scanf("%d",&choice)!=EOF){switch(choice){case1:/*录入图书信息*/addnewbook(&head);break;case2:/*删除图书信息*/deletebook(head);break;case3:/*修改图书信息*/modifybook(head);break;case4:/*查询图书信息*/searchbook(head);break;case5:/*显示所有图书信息*/printfbook(head);break;case6:/*返回登录界面*/main();break;case7:/*保存数据并退出系统*/savebookdata(head);exit(0);default:printf("\t输入错误!!!\n");system("pause");break;}showmenu1();}}elseif(c==3)exit(0);else{printf("\t\t\t输入错误!!!\n\n");}}return0;}

运行结果

这里提供的是管理员身份

这里提供游客身份（供选择的功能相对管理员少）