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3.用C语言编写一个简单的安卓安卓图书管理小程序
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/*这有个以前用过的程序,你可以自己改改使用,图书图书但是管理管理有些功
能好像有问题,会中断运行。系统系统至于程序的源码源码缩进式格式就你自己
敲回车和退格解决吧,不然代码看起来会很乱不好看。安卓安卓卖源码的网址*/
#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
#include<ctype.h>
#define STACK_INIT_SIZE
#define OK 1
#define TRUE 1
#define FALSE 0
#define ERROR 0
struct student /*定义学生类型,图书图书用于存放借出的管理管理书籍*/
{
int carnum;
char lendbook[];
}student[];
struct employ /*定义职工类型*/
{
int employnum;
char employname[];
int employage;
char employsex[2];
char employleve[];
long int employtage;
}employ[];
struct book /*定义书的类型*/
{
int booknum;
char bookname[];
char bookcreat[];
int turefalse; /*用于借书和还书模块判断一本书是否借出的条件*/
}book[];
struct car /*借书卡的数据类型*/
{
int carnum;
char studentname[];
int studentclass;
}car[];
huanbook() /*还书函数*/
{
FILE *fp,*fp2; /*定义两个文件指针,fp2用于修改数据时设立临时文件用,系统系统防止数据遭破坏*/
int i,源码源码n;
int carnum;
char lendbook[];
printf("请你输入你的卡号\n");
scanf("%d",&carnum);
fp=fopen("car.txt","r"); /*读取卡号记录*/
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++) /*for循环判断卡号是否存在*/
{
if(car[i].carnum==carnum) /*卡号存在,进入下一循环*/
{
n=i;
fclose(fp);
printf("请输入你要还的安卓安卓书的名字\n");
scanf("%s",lendbook);
fp=fopen("record.txt","r");
for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) /*判断是否借阅了输入的书*/
{
if(strcmp(student[i].lendbook,lendbook)==0) /*借阅了该书,进入下一循环,图书图书否则出错显示*/
{
fclose(fp);
fp=fopen("record.txt",管理管理"r");
fp2=fopen("bookl.txt","w");
for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++)
{
if(strcmp(student[i].lendbook,lendbook)==0)
{
continue; /*删除还掉的书的借书记录*/
}
fwrite(&student[i],sizeof(struct student),1,fp2); /*写入原来没还的书的记录*/
}
fclose(fp);
fclose(fp2);
fp=fopen("record.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&student[i],sizeof(struct student),1,fp2)!=0;i++)
{
fwrite(&student[i],sizeof(struct student),1,fp); /*将借书记录信息写回*/
}
fclose(fp);
fclose(fp2);
fopen("bookl.txt","w"); /*清临时文件的记录*/
fclose(fp2);
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) /*将书的记录写入临时文件,防止因为修改信息破坏以前的系统系统记录*/
{
if(i==n)
{
book[i].turefalse=1;
fwrite(&book[i],sizeof(struct book),1,fp2); /*将还的书的原来状态设为无人借阅的*/
continue;
}
fwrite(&book[i],sizeof(struct book),1,fp2);
}
fclose(fp);
fclose(fp2);
fp=fopen("book.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++)
{
fwrite(&book[i],sizeof(struct book),1,fp); /*将临时文件写回*/
}
fclose(fp);
fclose(fp2);
fopen("bookl.txt","w"); /*清临时文件*/
fclose(fp2);
printf("还书完毕,按任意键返回\n");
getch();
return 1;
}
}
printf("你没有借这样的源码源码egret 麻将源码书,任意键返回\n"); /*出错提示*/
fclose(fp);
getch();
return 0;
}
}
printf("系统没这样的卡,和管理员联系,按任意键返回\n"); /*出错提示*/
fclose(fp);
getch();
}
findbook()
{
FILE *fp;
char bookname[];
int ture,i;
fp=fopen("book.txt","r");
printf("请输入你要查找的书名\n");
scanf("%s",bookname);
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(bookname,book[i].bookname)==0)
{
if(book[i].turefalse==1)
{
printf("这本书的详细资料是:%d %s %s 此书现在无人借阅\n按任意键返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat);
}
else { printf("这本书已经有人借出\n");fclose(fp);return 0;}
fclose(fp);
return FALSE;
}
}
printf("没有你要查询的书籍\n");
fclose(fp);
return FALSE;
}
findbook1()
{
FILE *fp;
char bookcreat[];
int ture,i;
fp=fopen("book.txt","r");
printf("请输入你要查找的作者名\n");
scanf("%s",bookcreat);
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(bookcreat,book[i].bookcreat)==0)
{
if(book[i].turefalse==1)
{
printf("这本书的详细资料是:%d %s %s 此书现在无人借阅\n按任意键返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat);
}
else { printf("这本书已经有人借出\n");fclose(fp);return 0;}
fclose(fp);
return FALSE;
}
}
printf("没有你要查询的书籍\n");
fclose(fp);
return FALSE;
}
lendcount()
{
FILE *fp;
int i,n=0;
fp=fopen("record.txt","r");
for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++)
{
printf("卡号:%d 借出的书籍:%s \n",student[i].carnum,student[i].lendbook);
n=n+1;
}
fclose(fp);
printf("目前共有%d本书借出\n",n);
printf("按任意键\n");
getch();
return n;
}
chabook()
{
char ch5;
do
{
printf("---------------欢迎进入图书查询系统!--------------\n");
printf(" 1:<按书名查找>\n");
printf(" 2:<按作者查找>\n");
printf(" 0:<返回>\n");
printf("请输入0--2,其他输入非法!\n");
scanf("%s",&ch5);
switch(ch5)
{
case '1':findbook();getch();break;
case '2':findbook1();getch();break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch5!='0');
return FALSE;
}
lendbook()
{
FILE *fp,*fp2;
int i,n;
int carnum;
printf("请你输入你的卡号\n");
scanf("%d",&carnum);
fp=fopen("car.txt","r");
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++)
{
if(car[i].carnum==carnum)
{
n=i;
fclose(fp);
printf("请输入你要借阅的书的名字\n");
scanf("%s",student[n].lendbook);
fp=fopen("book.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(book[i].bookname,student[n].lendbook)==0)
{
if(book[i].turefalse==0) { printf("对不起,此书有人借出,请借其他书\n");fclose(fp);getch();return;}
else
fclose(fp);
fp=fopen("record.txt","a+");
student[n].carnum=carnum;
fwrite(&student[n],sizeof(struct student),1,fp);
fclose(fp);
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(book[i].bookname,student[n].lendbook)==0)
{
book[i].turefalse=0;
fwrite(&book[i],sizeof(struct book),1,fp2);
continue;
}
fwrite(&book[i],sizeof(struct book),1,fp2);
}
fclose(fp);
fclose(fp2);
fp=fopen("book.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++)
{
fwrite(&book[i],sizeof(struct book),1,fp);
}
fclose(fp);
fclose(fp2);
fopen("bookl.txt","w");
fclose(fp2);
printf("借书完毕,按任意键返回\n");
getch();
return;
}
}
printf("不存在这样的奇迹源码分析书,任意键返回\n");
fclose(fp);
getch();
return;
}
}
printf("你的卡号不存在,请申请新卡,按任意键返回\n");
fclose(fp);
getch();
}
carcount()
{
FILE *fp;
int i,n=0;
fp=fopen("car.txt","r");
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++)
{
printf("第%d张卡<卡号:%d 姓名:%s 班级:%d>\n",i+1,car[i].carnum,car[i].studentname,car[i].studentclass);
n=n+1;
}
fclose(fp);
printf("目前共有%d本书\n",n);
printf("按任意键\n");
getch();
}
delcar()
{
FILE *fp,*fp2;
int i;
int carnum;
char choice;
fp=fopen("car.txt","r");
fp2=fopen("bookl.txt","w");
printf("请输入你要删除的卡号\n");
printf("如果你输入的卡号存在,系统自动删除该信息!如果不存在,系统不做任何改动\n");
scanf("%d",&carnum);
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++)
{
if(car[i].carnum!=carnum)
{
fwrite(&car[i],sizeof(struct car),1,fp2);
}
}
fclose(fp);
fclose(fp2);
printf("是否真的要删除该卡?删除后该书籍的所有信息将无法恢复《Y/N》\n");
scanf("%s",&choice);
if(choice=='y'||choice=='Y')
{
fp=fopen("car.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&car[i],sizeof(struct car),1,fp2)!=0;i++)
{
fwrite(&car[i],sizeof(struct car),1,fp);
}
fclose(fp);
fclose(fp2);
fp2=fopen("bookl.txt","w");
fclose(fp2);
printf("按任意键返回\n");
getch();
return;
}
else
{
printf("按任意键返回\n");
getch();
return;
}
}
addcar()
{
FILE *fp;
int i=0;
fp=fopen("car.txt","a+");
printf("请你输入卡号\n");
scanf("%d",&car[i].carnum);
printf("请你输入学生姓名\n");
scanf("%s",car[i].studentname);
printf("请你输入班级\n");
scanf("%d",&car[i].studentclass);
fwrite(&car[i],sizeof(struct car),1,fp);
fclose(fp);
printf("输入完毕,任意键返回\n");
getch();
}
changemploy()
{
FILE *fp,*fp2;
char employname[],choice;
int i;
fp=fopen("employ.txt","r");
fp2=fopen("bookl.txt","w");
printf("请你输入要修改的职工的名字\n");
scanf("%s",employname);
for(i=0;fread(&employ[i],sizeof(struct employ),1,fp)!=0;i++)
{
if(strcmp(employ[i].employname,employname)==0)
{
printf("你所要修改的职工的资料如下,请选择你要修改的诚信论坛源码内容\n");
printf("<职工号:%d职工名:%s 年龄:%d 性别:%s 学历:%s 工资:%d>\n",employ[i].employnum,employ[i].employname,employ[i].employage,employ[i].employsex,employ[i].employleve,employ[i].employtage);
printf("2:修改职工名\n");
printf("3:修改职工年龄\n");
printf("4:修改职工工资\n");
printf("5:修改职工学历\n");
printf("请输入1-5:");
scanf("%s",&choice);
switch(choice)
{
case '1':
{
printf("请输入新的职工号\n");
scanf("%d",&employ[i].employnum);
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}break;
case '2':
{
printf("请输入新的职工姓名\n");
scanf("%s",employ[i].employname);
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}break;
case '3':
{
printf("请输入新的年龄\n");
scanf("%d",&employ[i].employage);
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}break;
case '4':
{
printf("请输入新的职工工资\n");
scanf("%d",&employ[i].employtage);
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}break;
case '5':
{
printf("请输入新的职工学历\n");
scanf("%s",employ[i].employleve);
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}
default:printf("没有这样的操作");break;
}
continue;
}
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}
fclose(fp);
fclose(fp2);
fp=fopen("employ.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&employ[i],sizeof(struct employ),1,fp2)!=0;i++)
{
fwrite(&employ[i],sizeof(struct employ),1,fp);
}
fclose(fp);
fclose(fp2);
fp2=fopen("bookl.txt","w");
fclose(fp2);
printf("按任意键返回\n");
getchar();
return;
}
delemploy()
{
FILE *fp,*fp2;
int i;
char employname[],choice;
fp=fopen("employ.txt","r");
fp2=fopen("bookl.txt","w");
printf("请输入你要删除的职工名\n");
printf("如果你输入的职工存在,系统自动删除该信息!如果不存在,系统不做任何改动\n");
scanf("%s",employname);
for(i=0;fread(&employ[i],sizeof(struct employ),1,fp)!=0;i++)
{
if(strcmp(employname,employ[i].employname)!=0)
{
fwrite(&employ[i],sizeof(struct employ),1,fp2);
}
}
fclose(fp);
fclose(fp2);
printf("是否真的要删除该职工信息?删除后的所有信息将无法恢复《Y/N》\n");
scanf("%s",&choice);
if(choice=='y'||choice=='Y')
{
fp=fopen("employ.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&employ[i],sizeof(struct employ),1,fp2)!=0;i++)
{
fwrite(&employ[i],sizeof(struct employ),1,fp);
}
fclose(fp);
fclose(fp2);
fp2=fopen("bookl.txt","w");
fclose(fp2);
printf("按任意键返回\n");
getch();
return TRUE;
}
else
{
printf("按任意键返回\n");
getch();
return FALSE;
}
}
employcount()
{
FILE *fp;
int i,n=0;
fp=fopen("employ.txt","r");
for(i=0;fread(&employ[i],sizeof(struct employ),1,fp)!=0;i++)
{
printf("第%d职工的信息如下:\n<职工号:%d 职工名:%s 年龄:%d 性别:%s 学历:%s 工资:%d>\n",n+1,employ[i].employnum,employ[i].employname,employ[i].employage,employ[i].employsex,employ[i].employleve,employ[i].employtage);
n++;
}
fclose(fp);
printf("目前共有%d个职工\n",n);
printf("按任意键返回\n");
}
addemploy()
{
FILE *fp;
char choice='y';
int i=1;
fp=fopen("employ.txt","a+");
while(choice=='y'||choice=='Y')
{
printf("请你输入职工号码\n");
scanf("%d",&employ[i].employnum);
printf("请你输入职工名\n");
scanf("%s",employ[i].employname);
printf("请输入职工年龄\n");
scanf("%d",&employ[i].employage);
printf("请你输入性别\n");
scanf("%s",employ[i].employsex);
printf("请你输入职工的学历水平\n");
scanf("%s",employ[i].employleve);
printf("请输入职工的工资\n");
scanf("%d",&employ[i].employtage);
fwrite(&employ[i],sizeof(struct employ),1,fp);
printf("是否要输入下个职工信息?\n");
scanf("%s",&choice);
}
printf("按任意键返回\n");
fclose(fp);
}
addbook()
{
FILE *fp;
int i=0;
char choice='y';
fp=fopen("book.txt","a+");
while(choice=='y'||choice=='Y')
{
printf("请你输入第%d本书的序号\n",i+1);
scanf("%d",&book[i].booknum);
printf("请你输入书名\n");
scanf("%s",book[i].bookname);
printf("请你输入书的作者\n");
scanf("%s",book[i].bookcreat);
printf("请设为1或0,1代表书还没人借,0表示书已经借出,设其他值,程序运行时无法得出正常结果\n");
printf("请你设定书的eigen源码实现状态\n");
scanf("%d",&book[i].turefalse);
fwrite(&book[i],sizeof(struct book),1,fp);
printf("是否要输入下本书\n");
scanf("%s",&choice);
}
fclose(fp);
}
bookcount()
{
FILE *fp;
int i,n=0;
fp=fopen("book.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(book[i].booknum!=0&&strlen(book[i].bookname)!=0&&strlen(book[i].bookcreat)!=0)
{
printf("第%d本书<序号:%d 书名:%s 作者:%s 状态:%d>\n",i+1,book[i].booknum,book[i].bookname,book[i].bookcreat,book[i].turefalse);
n=n+1;
}
}
fclose(fp);
printf("目前共有%d本书\n",n);
printf("按任意键\n");
}
delbook()
{
FILE *fp,*fp2;
int i;
char bookname[],choice;
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
printf("请输入你要删除的书名\n");
printf("如果你输入的书名存在,系统自动删除该信息!如果不存在,系统不做任何改动\n");
scanf("%s",bookname);
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(bookname,book[i].bookname)!=0)
{
fwrite(&book[i],sizeof(struct book),1,fp2);
}
}
fclose(fp);
fclose(fp2);
printf("是否真的要删除该书籍?删除后该书籍的所有信息将无法恢复《Y/N》\n");
scanf("%s",&choice);
if(choice=='y'||choice=='Y')
{
fp=fopen("book.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++)
{
fwrite(&book[i],sizeof(struct book),1,fp);
}
fclose(fp);
fclose(fp2);
fp2=fopen("bookl.txt","w");
fclose(fp2);
printf("按任意键返回\n");
getch();
return;
}
else
{
printf("按任意键返回\n");
getch();
return;
}
}
changebook()
{
FILE *fp,*fp2;
char bookname[],choice;
int i;
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
printf("请你输入要修改的书籍的书字\n");
scanf("%s",bookname);
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(book[i].bookname,bookname)==0)
{
printf("你所要修改的书的资料如下,请选择你要修改的内容\n");
printf("序号:〈%d〉 书名:〈%s〉 作者:〈%s〉 \n",book[i].booknum,book[i].bookname,book[i].bookcreat);
printf("1:修改书的序号\n");
printf("2:修改书名\n");
printf("3:修改作者\n");
printf("请输入1-3:");
scanf("%s",&choice);
switch(choice)
{
case '1':
{
printf("请输入新的序号\n");
scanf("%d",&book[i].booknum);
fwrite(&book[i],sizeof(struct book),1,fp2);
}break;
case '2':
{
printf("请输入新的书名\n");
scanf("%s",book[i].bookname);
fwrite(&book[i],sizeof(struct book),1,fp2);
}break;
case '3':
{
printf("请输入新的作者\n");
scanf("%s",book[i].bookcreat);
fwrite(&book[i],sizeof(struct book),1,fp2);
}break;
defaut:printf("没有这样的操作");break;
}
continue;
}
fwrite(&book[i],sizeof(struct book),1,fp2);
}
fclose(fp);
fclose(fp2);
fp=fopen("book.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++)
{
fwrite(&book[i],sizeof(struct book),1,fp);
}
fclose(fp2);
fp2=fopen("bookl.txt","w");
fclose(fp2);
printf("按任意键返回\n");
getchar();
return;
}
main()
{
char ch1,ch2,ch3,ch4,ch5;
do
{
printf("\t\t请你选择操作类型:\n");
printf(" 1:<查阅图书>\n");
printf(" 2:<借阅图书>\n");
printf(" 3:<管理系统>\n");
printf(" 4:<还书>\n");
printf(" 0:<退出>\n");
printf("请输入0--4\n");
scanf("%s",&ch1);
switch(ch1)
{
case '1':chabook();break;
case '2':lendbook();;break;
case '3':{
do
{
printf("---------------欢迎进入管理系统!--------------\n");
printf(" 1:<增加图书>\n");
printf(" 2:<删除图书>\n");
printf(" 3:<修改图书资料>\n");
printf(" 4:<书籍统计>\n");
printf(" 5:<职工管理系统>\n");
printf(" 6:<学生管理系统>\n");
printf(" 0:<返回>\n");
printf("请输入0--6,其他输入非法!\n");
scanf("%s",&ch2);
switch(ch2)
{
case '1':addbook();
break;
case '2':delbook();break;
case '3':changebook();break;
case '4':bookcount();getch();break;
case '5':{ do
{
printf("---------------欢迎进入职工管理系统!--------------\n");
printf(" 1:<增加员工>\n");
printf(" 2:<删除员工>\n");
printf(" 3:<修改员工资料>\n");
printf(" 4:<员工统计>\n");
printf(" 0:<返回>\n");
printf("请输入0--4,其他输入非法!\n");
scanf("%s",&ch3);
switch(ch3)
{
case '1':addemploy();getch();break;
case '2':delemploy();break;
case '3':changemploy();break;
case '4':employcount();getch();break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch3!='0');}break;
case '6':{
do
{
printf("---------------欢迎进入学生管理系统!--------------\n");
printf(" 1:<申请新卡>\n");
printf(" 2:<删除卡号>\n");
printf(" 3:<借书统计>\n");
printf(" 4:<卡号统计>\n");
printf(" 0:<返回>\n");
printf("请输入0--4,其他输入非法!\n");
scanf("%s",&ch4);
switch(ch4)
{
case '1':addcar();break;
case '2':delcar();break;
case '3':lendcount();break;
case '4':carcount();break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch4!='0');}break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch2!='0');}break;
case '4':huanbook();break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch1!='0');
}
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#include <stdio.h>#include <stdlib.h>#include <string.h>//3.æ°æ®ç设计//3.1ç¨åºçæ°æ®åå¨--->容å¨//3.2æ°æ®çç»æ --->å¾ä¹¦çä¿¡æ¯struct bookInfo{ char name[];//书åfloat price;//书ç±çä»·æ ¼int num;//书ç±çæ°é};//å®ä¹é¾è¡¨struct Node{ struct bookInfo data;struct Node* next;};struct Node* list = NULL;//å°é¾è¡¨å£°ææå ¨å±åé//å建表头ï¼è¡¨å¤´å°±æ¯ç»æä½åéstruct Node* createHead(){ //å¨æå åç³è¯·struct Node* headNode = (struct Node*)malloc(sizeof(struct Node));//åéåå§åheadNode->next = NULL;return headNode;}//å建èç¹ï¼ä¸ºæå ¥ååå¤// æç¨æ·çæ°æ®åæç»æä½åéstruct Node* createNode(struct bookInfo data){ struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));newNode->data = data;newNode->next = NULL;return newNode;}//æ°æ®æå ¥ï¼å¤´ææ³ï¼void insertNodeByHead(struct Node* headNode, struct bookInfo data){ struct Node* newNode = createNode(data);newNode->next = headNode->next;headNode->next = newNode;}//å°¾ææ³/*struct insertNodeByTall(struct Node* headNode, int data){ struct Node* pMove = headNode;while (pMove != NULL){ pMove = pMove->next;}struct Node* newNode = createHead(data);pMove->next = newNode;}*///æå®å é¤ï¼å é¤é¾è¡¨ä¸å ç´ ï¼//posLeftNode->next=posNode->next;//free(posNode);void deleteNodeByName(struct Node* headNode, char* bookname){ struct Node* posLeftNode = headNode;struct Node* posNode = headNode->next;//书ç±ååæ¯å符串ï¼å符串æ¯è¾å½æ°while (posNode != NULL && strcmp(posNode->data.name, bookname)){ posLeftNode = posNode;posNode = posLeftNode->next;}//讨论æ¥æ¾çç»æif (posNode == NULL)return;else{ printf("å é¤æåï¼\n");posLeftNode->next = posNode->next;free(posNode);posNode = NULL;}}//æ¥æ¾struct Node* searchByName(struct Node* headNode, char* bookName){ struct Node* posNode = headNode->next;while (posNode != NULL && strcmp(posNode->data.name, bookName)){ posNode = posNode->next;}return posNode;}//æå°é¾è¡¨void printList(struct Node* headNode){ struct Node* pMove = headNode->next;printf("书å\tä»·æ ¼\tæ°é\n");while (pMove != NULL){ printf("%s\t%.1f\t%d\n", pMove->data.name, pMove->data.price, pMove->data.num);pMove = pMove->next;}}//ç´æ¥æ件æä½//æ件åæä½void saveInfoToFile(const char* filename, struct Node* headNode){ FILE* fp = fopen(filename, "w");struct Node* pMove = headNode->next;while (pMove != NULL){ fprintf(fp, "%s\t%.1f\t%d\n", pMove->data.name, pMove->data.price, pMove->data.num);pMove = pMove->next;}fclose(fp);}//æ件读æä½void readInfoFromFile(const char* fileName, struct Node* headNode){ FILE* fp = fopen(fileName, "r");if (fp == NULL){ //ä¸åå¨å°±å建åºæ¥è¿ä¸ªæ件fp = fopen(fileName, "w+");}struct bookInfo tempData;while (fscanf(fp, "%s\t%f\t%d\n", tempData.name, &tempData.price, &tempData.num) != EOF){ insertNodeByHead(list, tempData);}fclose(fp);}//å泡æåºï¼é¾è¡¨ï¼void bubbleSortList(struct Node* headNode){ for (struct Node* p = headNode->next; p != NULL; p = p->next){ for (struct Node* q = headNode->next; q->next != NULL; q = q->next){ if (q->data.price > q->next->data.price){ //交æ¢å¼struct bookInfo tempData = q->data;q->data = q->next->data;q->next->data = tempData;}}}printList(headNode);}//2.交äºvoid keyDown(){ int userkey = 0;struct bookInfo tempBook;//产çä¸ä¸ªä¸´æ¶çåéåå¨ä¹¦ç±ä¿¡æ¯struct Node* result = NULL;scanf("%d", &userkey);switch (userkey) { case 0:printf(" ã ç»è®° ã \n");printf("è¾å ¥ä¹¦ç±çä¿¡æ¯(name,price,num):");scanf("%s%f%d", tempBook.name, &tempBook.price, &tempBook.num);insertNodeByHead(list, tempBook);saveInfoToFile("bookinfo.txt", list);break;case 1:printf(" ã æµè§ ã \n");printList(list);break;case 2:printf(" ã åé ã \n"); printf("请è¾å ¥ä½ è¦åé ç书ç±ï¼");scanf("%s", tempBook.name);result = searchByName(list,tempBook.name);if (result == NULL)printf("没æç¸å ³ä¹¦ç±æ æ³åé ï¼\n");else{ if (result->data.num > 0){ result->data.num--;printf("åé æå\n");saveInfoToFile("bookinfo.txt", list);}else{ printf("å½å书ç±æ åºåï¼åé 失败ï¼\n");}}break;case 3:printf(" ã å½è¿ ã \n");printf("请è¾å ¥ä½ è¦å½è¿ç书ç±ï¼");scanf("%s", tempBook.name);result = searchByName(list, tempBook.name);if (result == NULL)printf("书ç±æ¥æºéæ³ï¼\n");else{ result->data.num++;printf("书ç±å½è¿æåï¼\n");saveInfoToFile("bookinfo.txt", list);}break;case 4:printf(" ã æ¥æ¾ ã \n");printf("ä½ è¦æ¥è¯¢ç书åï¼");scanf("%s", tempBook.name);result = searchByName(list, tempBook.name);if (result == NULL){ printf("æªæ¾å°ç¸å ³ç»æ!\n");}else{ printf("书å\tä»·æ ¼\tæ°é\n");printf("%s\t%.1f\t%d\n", result->data.name, result->data.price, result->data.num);}break;case 5:printf(" ã æåº ã \n");bubbleSortList(list);break;case 6:printf(" ã å é¤ ã \n");printf("è¾å ¥æ³è¦å é¤ç书å:");scanf("%s", tempBook.name);deleteNodeByName(list, tempBook.name);saveInfoToFile("bookinfo.txt", list);break;case 7:printf(" ã éåº ã \n");printf(" éåºæå \n");system("pause");exit(0); //å ³ææ´ä¸ªç¨åºbreak;default:printf(" ã error ã \n");break;}}//1.çé¢--->èå--->模åvoid makeMenu(){ printf("----------------------------------\n");printf("Eugeoå¾ä¹¦ç®¡çåé ç³»ç»\n");printf("t0.ç»è®°ä¹¦ç±\n");printf("t1.æµè§ä¹¦ç±\n");printf("t2.åé 书ç±\n");printf("t3.å½è¿ä¹¦ç±\n");printf("t4.æ¥æ¾ä¹¦ç±\n");printf("t5.æåºä¹¦ç±\n");printf("t6.å é¤ä¹¦ç±\n");printf("t7.éåºç³»ç»\n");printf("----------------------------------\n");printf("请è¾å ¥(0~7):");}int main(){ list = createHead();//é¾è¡¨åå§åreadInfoFromFile("bookinfo.txt", list);while (1){ makeMenu();keyDown();system("pause");system("cls");}}åæï¼/post/用C语言编写一个简单的图书管理小程序
源代码如下:#include<iostream>
#include<iomanip>
#include<string>
#include<fstream>
#include<stdio.h>
using namespace std;
const int maxb=; //最多的图书
class book//图书类
{
int tag; //删除标记1:已删0:未删
int number; //isbn书号
char name[]; //书名
char author[]; //主编
char number2[];//版次
char position[];//出版社
char time[];//出版年
void addbook(int n,char *na,char *au,char *n2,char *da,char *ti,int pr) //增加图书
{
tag=0;
number=n;
price=pr;
strcpy(name,na);
strcpy(author,au);
strcpy(number2,n2);
strcpy(position,da);
strcpy(time,ti);
onshelf=1;
}
扩展资料
1、源程序中,很多符号都是成对匹配出现的,为避免遗漏必须配对使用的符号。
2、用花括号括起来的部分,但从程序结构清晰,便于阅读、理解、维护的角度出发,建议在书写程序时应遵循以下规则,以养成良好的编程习惯。
3、一个说明或一条语句占一行,与该结构开始处的左花括号对齐。
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