c语言--宿舍管理设计

#include<stdio.h> #include<stdlib.h> #include<string.h> #include<malloc.h> typedef struct pnode //结构体定义 用于存放学生信息的节点 { char name [100]; //姓名 char ID[200]; //学号 char dorm[300]; //房号 char bednum[100]; //床位号 char group[200]; //班级 }student; char filename[200]="data.txt"; //文件名 FILE *fp; //指向文件的指针 void creat() // 创建一个二进制文件 用于存放学生数据 { student *person; person=(student *)malloc(sizeof(student)); //为节点分配内存 if((fp=fopen(filename,"a+"))==NULL) {exit(0);} printf("data.txt文件已创建。\n\n"); printf("\n请输入学生的姓名 学号 房号 床位号 班级 用空格隔开 以#结束\n"); scanf("%s",person->name); while(strcmp(person->name,"#")) //该循环用于控制学生信息的录入 遇#结束 { scanf("%s %s %s %s",person->ID,person->dorm,person->bednum,person->group); fprintf(fp,"%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); scanf("%s",person->name); } fclose(fp); } void readfile() //文件读取函数 { if((fp=fopen("data.txt","r+"))==NULL) {printf("\n无法打开该文件!\n");exit(0);} fclose(fp); } void output() //输出函数 用于输出文件的全部信息 { student *person; long offset1,offset2,offset3; char name1[10],name2[10],name3[10]; char ID1[20],ID2[20],ID3[20]; char dorm1[300],dorm2[300],dorm3[300]; char bednum1[100],bednum2[100],bednum3[100]; char group1[200],group2[200],group3[200]; person=(student *)malloc(sizeof(student)); if((fp=fopen(filename,"r"))==NULL) {printf("\n 无法打开该文件");exit(0);} printf("\n**************************************************************************************************\n"); printf("%50s\n","住宿信息记录如下\n"); printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); while(!feof(fp)) //次循环用于输出文件 { fscanf(fp,"%s%s%s%s%s\n",person->name,person->ID,person->dorm,person->bednum,person->group); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); } fclose(fp); printf("**************************************************************************************************\n\n"); } void namesearch() // 按姓名搜索函数 { int k=0; char namekey[100]; student *person; person=(student *)malloc(sizeof(student)); printf("\n 请输入您要查找的姓名:"); scanf("%s",namekey); if((fp=fopen(filename,"rb"))==NULL) {printf("\n 无法打开文件");exit(0);} while(!feof(fp)) { fscanf(fp,"%s %s %s %s %s\n",person->name,person->ID,person->dorm,person->bednum,person->group); if(!strcmp(namekey,person->name)) { printf("\n\n 已经为您找到 以下是记录:\n\n"); printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); k=1; } } if(!k) printf("\n\n 没有关于此姓名的任何信息！ \n"); fclose(fp); } void IDsearch() //按学号搜索函数 { int k=0; char xhkey[200]; student *person; person=(student *)malloc(sizeof(student)); printf("\n 请您输入需要查找的学号："); scanf("%s",xhkey); if((fp=fopen(filename,"rb"))==NULL) {printf("\n 无法打开文件 ");exit(0);} while(!feof(fp)) { fscanf(fp,"%s%s%s%s%s\n",person->name,person->ID,person->dorm,person->bednum,person->group); if(!strcmp(xhkey,person->ID)) { printf("\n\n 已经为您找到 以下是记录：\n\n"); printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); k=1; } } if(!k) printf("\n\n 没有关于该学号的任何信息\n"); fclose(fp); } void dormsearch () //按房号搜索函数 { int k=0; char fhkey[300]; student *person; person=(student *)malloc(sizeof(student)); printf("\n 请您输入想要查找的房号:"); scanf("%s",fhkey); if((fp=fopen(filename,"rb"))==NULL) {printf("\n 无法打开文件");exit(0);} while(!feof(fp)) { fscanf(fp,"%s%s%s%s%s\n",person->name,person->ID,person->dorm,person->bednum,person->group); if(!strcmp(fhkey,person->dorm)) { printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); k=1; } } if(!k) printf("\n\n 没有关于此房号的任何信息\n"); fclose(fp); } void add() //插入函数 用于像已有文件插入一条新的学生信息记录 { student *person; person=(student *)malloc(sizeof(student)); if((fp=fopen(filename,"a"))==NULL) {printf("\n 无法打开文件");exit(0);} printf("\n 请您输入学生姓名 学号 房号 床位号 班级 \n"); scanf("%s %s %s %s %s",person->name,person->ID,person->dorm,person->bednum,person->group); fprintf(fp,"%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); printf("\n\n增加成功!\n"); fclose(fp); } void modify() //更新函数 用于修改指定房号、床号的记录 { int k=0; long offset; char dormkey[100],bednumkey[100]; student *person; person=(student *)malloc(sizeof(student)); printf("\n 请您输入想要更改住宿信息的房号及床位号:"); scanf("%s%s",dormkey,bednumkey); if((fp=fopen(filename,"r+"))==NULL) {printf("\n 无法打开文件"); exit(0);} while(!feof(fp)) { offset=ftell(fp); fscanf(fp,"%s%s%s%s%s\n",person->name,person->ID,person->dorm,person->bednum,person->group); if(!strcmp(dormkey,person->dorm)&&!strcmp(bednumkey,person->bednum)) {k=1;break;} } if(k) { printf("\n 记录输出如下：\n\n"); printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); printf("\n 请您输入新的学生姓名 学号 房号 床位号 班级：\n"); scanf("%s %s %s %s %s",person->name,person->ID,person->dorm,person->bednum,person->group); fseek(fp,offset,SEEK_SET); fprintf(fp,"%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); printf("\n修改成功!\n"); } else {printf("\n\n 请确认输入的信息是否正确!\n");} fclose(fp); } void deleted() //删除函数 用于删除指定学生姓名的记录 { int k=0; char m; long offset; char dormkey[100],bednumkey[100]; student *person; person=(student *)malloc(sizeof(student)); printf("\n请您输入想要删除住宿信息的房号及床位号："); scanf("%s%s",dormkey,bednumkey); if((fp=fopen(filename,"r+"))==NULL) {printf("\n 无法打开文件 ");exit(0);} while(!feof(fp)) { offset=ftell(fp); fscanf(fp,"%s%s%s%s%s\n",person->name,person->ID,person->dorm,person->bednum,person->group); if(!strcmp(dormkey,person->dorm)&&!strcmp(bednumkey,person->bednum)) {k=1;break;} } if(k) { printf("\n 记录输出如下：\n\n"); printf("%-20s%-20s%-20s%-20s%-20s\n","姓名","学号","房号","床位号","班级"); printf("%-20s%-20s%-20s%-20s%-20s\n",person->name,person->ID,person->dorm,person->bednum,person->group); printf("\n 您真的确定要删除?y/n?"); scanf("%s",&m); if(m=='y') //删除确认按钮 { fseek(fp,offset,SEEK_SET); //删除记录 fprintf(fp,"%-20s%-20s%-20s%-20s%-20s\n","","","","",""); printf("\n\n 删除成功!"); } else rewind(fp); } else printf("\n 请确认信息输入是否正确!\n"); fclose(fp); } int main() //主函数 { int m,flag=1; // m用于控制菜单