如何使用C++实现学生宿舍管理系统

2023-06-29 12:32

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这篇文章给大家分享的是有关如何使用C++实现学生宿舍管理系统的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。

具体内容如下

非常简易，完成个作业够用，仅供初学者参考，不喜勿喷。

#include<stdio.h>#include<stdlib.h>#include<string.h>#include<malloc.h>struct stud {    int   num;            //学号     char  name[10];        //姓名     char  sex[8];        //性别     int   age;            //年龄     char  major[18];     //专业     int   grade;        //年级     int   classes;        //班级     int   building;        //楼号     int   floor;        //楼层     int   dormitary;    //宿舍号     struct stud *next; };struct stud *h;     int N=sizeof(struct stud);//获取结构体总长度，用于分配内存空间 void input_message(){   struct stud *p1,*p2;    int i,k;    system("cls");    printf("********** 您当前正在进行的操作是，输入学生信息 **********\n\n");    printf("请输入本次注册的生总数:");scanf("%d",&k);    h=NULL;    printf("\n您共有%d个学生信息需要录入\n",k);         if(k>0)    {       h=p2=p1=(struct stud*)malloc(N);           for(i=1;i<=k;i++)      {         printf("\n请输入第%d名学生的信息:\n\n",i);        p1=(struct stud*)malloc(N);        printf("学号:");        scanf("%d",&p1->num);        printf("姓名:");        scanf("%s",p1->name);        printf("性别（男或女）:");        scanf("%s",p1->sex);        printf("年龄:");        scanf("%d",&p1->age);        printf("专业:");        scanf("%s",p1->major);        printf("年级:");        scanf("%d",&p1->grade);        printf("班级:");        scanf("%d",&p1->classes);        printf("楼号:");        scanf("%d",&p1->building);        printf("楼层:");        scanf("%d",&p1->floor);        printf("宿舍号:");        scanf("%d",&p1->dormitary);        p2->next=p1;                                    p2=p1;                                         }       p2->next=NULL;       h=h->next;      }            getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住       printf("\n%*s%s\n",10," ","输入完成，按任意键进入主菜单!!!!");      getchar();}void output_message(){    char v;    struct stud *p=h;    system("cls");    printf("********** 您当前正在进行的操作是，显示学生信息 **********\n\n");        if(p==NULL)    {        printf("%*s%s\n",10," ","当前没有找到任何学生信息，请您先输入信息，再执行本操作!\n");        getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("%*s%s\n",10," ","按任意键返回主菜单!!!!");        getchar();        return;     }    printf("  学号      姓名  性别  年龄      专业  年级  班级  楼号  楼层  宿舍号\n\n");    while(p!=NULL)    {        printf("%6d%10s%6s%6d%10s%6d%6d%6d%6d%8d\n",p->num,p->name,p->sex,p->age,p->major,p->grade,p->classes,p->building,p->floor,p->dormitary);        p=p->next;    }        getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住     printf("\n%*s%s\n",10," ","输出完成，按任意键返回主菜单!!!!");    getchar();}void insert_message(){      struct stud *p0,*p1;    p1=(struct stud *)malloc(N);    system("cls");    printf("********** 您当前正在进行的操作是，插入学生信息 **********\n\n");              printf("\n请输入要插入学生的信息:\n\n");    p1=(struct stud*)malloc(N);    printf("学号:");    scanf("%d",&p1->num);    printf("姓名:");    scanf("%s",p1->name);    printf("性别（男或女）:");    scanf("%s",p1->sex);    printf("年龄:");    scanf("%d",&p1->age);    printf("专业:");    scanf("%s",p1->major);    printf("年级:");    scanf("%d",&p1->grade);    printf("班级:");    scanf("%d",&p1->classes);    printf("楼号:");    scanf("%d",&p1->building);    printf("楼层:");    scanf("%d",&p1->floor);    printf("宿舍号:");    scanf("%d",&p1->dormitary);    p1->next=NULL;       if(h==NULL)//如果链表为空，插入的节点设为表头    {             h=p1;        getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("\n%*s%s\n",10," ","插入成功！ 按任意键返回主菜单!!!!");        getchar();        return;    }        p0=h;    while((p0->next)!=NULL&&(p0->next->num)<(p1->num))    {        p0=p0->next;    }       if(p0->next==NULL)    {        p0->next=p1; //如果到尾部了加到尾部        getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("\n%*s%s\n",10," ","插入成功！ 按任意键返回主菜单!!!!");        getchar();     }    else if((p0->next->num)==(p1->num))    {        free(p1);    //如果已经存在这个学号，那就不能再插入了，释放                getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("\n%*s%s\n",10," ","插入失败，本学号信息已经存在！ 按任意键返回主菜单!!!!");        getchar();    }    else    {        //插入         p1->next=p0->next;        p0->next=p1;                 getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("\n%*s%s\n",10," ","插入成功！ 按任意键返回主菜单!!!!");        getchar();                }}void del_message(){      int num;    bool delOk=false;        struct stud *p0,*p1;        system("cls");    printf("********** 您当前正在进行的操作是，删除学生信息 **********\n\n");            if(h==NULL)    {        printf("%*s%s\n",10," ","当前没有找到任何学生信息，请您先输入信息，再执行本操作!\n");        getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住         printf("%*s%s\n",10," ","按任意键返回主菜单!!!!");        getchar();        return;     }        printf("请输入要删除学生的学号:");    scanf("%d",&num);    p0=h;    if(p0->num==num)    {        h=p0->next;        free(p0);                                      delOk=true;    }    else    {        p1=p0->next;        while(p1!=NULL)        {            if(p1->num==num)            {                p0->next=p1->next;                free(p1);                delOk=true;                break; //跳出循环             }            p0=p1;            p1=p1->next;       }             }          getchar();//吸收掉上一行录入时键入的回车符号，否则卡不住      if(delOk)        printf("%*s%s\n",10," ","删除成功! 按任意键返回主菜单!!!!");     else        printf("%*s%s\n",10," ","没有找到匹配学号，删除失败! 按任意键返回主菜单!!!!");            getchar();}//主函数 int main(void){    int choice;          do{        system("cls");        printf("\n\n\n");        printf("%*s%s",10," ","********** 学 生 宿 舍 管 理 系 统 **********\n\n");        printf("%*s%s",25," ","1.输入学生信息\n\n");        printf("%*s%s",25," ","2.输出学生信息\n\n");           printf("%*s%s",25," ","3.插入学生信息\n\n");           printf("%*s%s",25," ","4.删除学生信息\n\n");           printf("%*s%s",25," ","0.退出系统\n\n");           printf("%*s%s",10," ","*********************************************\n\n");           printf("%*s%s",10," ","请选择0-4之间任意整数:");        scanf("%d",&choice);              switch(choice)       {         case 1:input_message();break;         case 2:output_message();break;         case 3:insert_message();break;         case 4:del_message();break;         case 0:break;       }     }while(choice!=0);}

如何使用C++实现学生宿舍管理系统