学生信息管理系统程序设计报告

时间:2024.3.31

HUNAN  UNIVERSITY

程序设计训练

报   告

                     学生姓名      李乐平                   

      学生学号      20110602212                   

           专业班级            市场营销二班                

               指导老师      贺再红                   

                 院长 (系主任)                                                                    

2012 年     7  月  2  日

  

   系统功能简介......................................3

  本人完成的主要工作  .................................3

  实训分析   ...............................  ..4

  实训设计  ...........   ....................5

  实训源程序代码和调试过程   .....................7

  实训总结   .................................11

附录1................................12

附录2  .................................12-22

 


                                               

  系统功能简介

.学生信息管理系统

1, 进入主界面:要求输入密码,输入三次错误系统锁定。

2,输入记录:将学生的基本信息包括学号,姓名,性别,地区,分数等数据作为一个记录写入文件。

3,显示记录:显示学生的各项信息 。

4,增加记录: 增加多个学生的基本信息,位于之前的学生后面。

5,删除记录: 删除学生信息。

6,修改记录:可以修改学生的任何一项基本信息。

7,查找记录:可以根据学生的学号查找并显示出学生的信息。

8,统计记录: 统计全班通过情况和不及格情况。

9,退出系统

经过逐层逐块、不断细化、求精过程,编写程序并进行测试、验证,可以逐个模块地分开调试,并通过文件包含或用工程文件的形式进行逐步联合调试。

  本人完成的主要工作

学生信息管理系统由我和龚晨同学共同完成。主程序的编写由我们两个共同完成。

我负责的是:

1、修改记录:可以修改学生的任何一项基本信息。

2、查找记录:可以根据学生的学号查找并显示出学生的信息。

3、统计记录: 统计全班通过情况和不及格情况。

4、退出系统

  实训分析

1、用结构化程序设计思想进行 C环境下程序设计。

2、设计一个管理系统,上机编程、调试并通过该管理系统中的各功能模块。

3、设计完成后,每人必须提交程序清单及关于程序设计、维护和使用方面的图文材料即程序设计说明书各一份。

4、基于结构化程序设计思想和所使用的 C语言开发环境与开发工具,并运用“软件工程”和“数据结构”中的有关概念和方法,针对具体设计题目和要求,分析功能要求,划分功能模块,用链表结构设计功能模块函数,以菜单方式调用相应功能模块来实现信息和数据处理

  实训设计

1、系统功能模块结构图

   本图书管理系统理由输入记录,显示记录,增加记录,删除记录,修改记录,统计数据,查找记录,七个大模块组成,其总体结构图如下:

                           

      

 

2.核心数据结构设计:         

1.头文件说明

如: 

#include<string.h>

#include<stdio.h>

#include<stdlib.h>

#include<conio.h>

2,函数的编写

定义结构类型;

定义全局变量;

定义、编写记录(数据)输入函数;

定义、编写记录(数据)显示函数;

定义、编写记录(数据)增加函数;

定义、编写记录(数据)删除函数;

定义、编写记录(数据)修改函数;

定义、编写记录(数据)统计函数;

定义、编写记录(数据)查找函数;

 

3. 核心算法描述(程序流程图)

 

 主函数结构流程

 

                                   N

                                    Y

 

                

  实训源程序代码和调试过程(包括截图)

1.1进入界面

 

图一    输入密码进行身份验证,输入三次则系统锁定。

1.2选择菜单

图二  主菜单接界面,选择数字执行相应功能。

1.3输入信息

图三  依次输入学生的各项基本信息。

1.4 显示信息

图四 可以显示录入及增加的各项信息。

1.5 增加信息

图五 根据需要添加新的学生信息。

1.6 删除记录

图六  删除信息。

1.7修改记录

图七    可修改任何学生的任何一项纪录。

1.8 统计信息

图八    对所有的信息进行统计显示不及格人数。

1.9 查找信息

图九     根据学号查找出需要的学生信息。

  实训结论

通过C语言实训,让我加深了对C语言的了解,而不只是单单的在课本中学到的那些理论,平时乏味的课程,通过自己动手亲自编写,变的生动有趣,而在自己动手的过程中,出现的问题很多,比理论要难的多,当一个程序写完以后,经常会有很多错误而没法解决。不过,通过几天的实训,逐渐积攒了一些经验,有些错误可以较快看出来。

这次实训有很大的收获,让我对C语言有了更深的认识,平时在课堂上学到的东西可以自己动手编写,将其转化成一些实用的技能。如果是一个程序写完一处错误也没有,会有种成就感,于是兴趣就来了,兴趣来了,自然学的东西也就多了,能把理论变成实际的技能,让我对C语言有了浓厚的兴趣和更深层的认识。

C语言是一个有序的学习,条理很清楚,不是一个零散的知识,实际上所有的课程都如此,要从整体上把握。不过通过实训我也知道了自己的不足,存在的很多问题。希望能在以后的学习中,不断提高自己的能力,让问题越来越少。

附录1

参考文献

[1 ] 刘振安等.C程序设计课程设计.北京:机械工业出版社,2004.9

[2]  谭浩强等.c语言程序设计.(第二版).清华大学出版社,2002,.8

[3] 张引等著《C程序设计设计基础课程设计》浙江大学出版社 2007

[5] 曹哲等 《C程序设计课程设计》 机械工业出版社  2010.7

附录2

源程序代码

#include <stdio.h>

#include <stdlib.h>

#include <conio.h>

#include <string.h>

#define N 20

struct student                                 /*定义学生结构体*/

{

long num;

char name[20];

char  sex[2];

char address[20];

int  score[3];

int  sum;

int ave;

};

struct student stu[N];

 int t=1,pl=0;

 void enter();

 void input();

 void display();

 void add();

 void delet();

 void amend();

 void preside();

 void fint();

 void output();

 void main()

 {

    int password;

                                                             int i;

                                                             printf("\n\n\n\n\t\t\t欢迎进入学生信息管理系统\n");           /*初始界面   输入验证密码*/

                                                             for(i=1;i<=3;i++)

                                                             {

                                                               printf("\n\n\t\t\t请输入密码:");

                                                               scanf("%d",&password);

                                                               if(password==000000)

                                                               {

                                                                      enter();

                                                                      break;

                                                               }

                                                               printf("error!please input again!");

                                                             }

                                                             printf("密码输入三次有误!系统锁定!");

                                                              

}

void enter()                                  /*进入主菜单函数*/

{

                                                             int choice,w;

                                                             char k;

                                                             system("cls");

                                                             printf("\t\t\t学生信息管理系统\n\n");

                                                    printf("\t\t1. 录入.\t2. 显示.\t3. 增项.\t4. 删项.\n\t\t5. 修改.\t6. 统计.\t7. 查找.\t8.退出.\n");

                                                             printf("\n 输入序号执行相应功能:"); 

                                                             scanf("%d",&choice);

                                                             switch(choice)

                                                             {

                                                             case 1: input();break;

                                                             case 2: display(); break;

                                                             case 3: add();break;

                                                             case 4: delet();break;

                                                             case 5: amend();break;

                                                             case 6: preside(); break;

                                                             case 7: fint(); break;

                                                             case 8: output();break;

                                                             default: w=1;

                                                             }

                                                             if(w==1)

                                                             {

                                                               printf("输入有误,按任意键重新选怿.\n"); 

                                                               k=getchar();    

                                                               getch();  

                                                               enter();

                                                             }

}

void input()                             /*学生信息录入的函数*/

{

                                                             int x,count=0,i;

                                                             char w,r[20],o;

                                                             struct student *p;

                                                             p=stu;

                                                             system("cls");

                                                             printf("\t\t\t 学生信息的录入.\n");   

                                                             do

                                                             {

                                                               pl++;

                                                               printf("请输入第%d 个学生的信息.\n\n",t);

                                                               printf("学号:\n");

                                                              scanf("%ld",&p->num);

                                                               printf("姓名:\n");

                                                               scanf("%s",&p->name);

                                                               printf("\n");

                                                            printf("性别:\n");

                                                               gets(r);

                                                               gets(&p->sex);

                                                               printf("\n");

                                                               printf("地区:\n");

                                                               scanf("%s",&p->address);

                                                               printf("\n");

                                                               printf("三门成绩:1.语文.2.数学.3.英语.\n");

                                                               for(i=0;i<3;i++)

                                                               scanf("%d",&p->score[i]);

                                                               p->sum = p->score[0] + p->score[1] + p->score[2];

                                                               p->ave = p->sum/3;

                                                               printf("\n\n 是否要继续输入学生信息,如果是请按 y;不是请按 n.\n");

                                                               o=getchar();

                                                               w=getchar();

                                                               if(w=='y' || w=='Y')

                                                               {

                                                                      t++;

                                                                      x=1;

                                                                      p++;

                                                               } 

                                                               else

                                                                      x=0;

                                                             }

                                                               while(x==1);

                                                               if(w=='n' || w=='N')

                                                                             printf("按任意键返回.\n");

                                                                             getch();

                                                                             enter();

                                                              

}

void display()                        /*显示学生信息*/

{

                                                             int i,j;

                                                             system("cls");

                                                             printf("\t\t\t 学生信息显示.\n\n");          

                                                             for(j=0;j<t;j++)       

                                                             {               

                                                             printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n","学号","姓名","性别","地区","语文","数学","英语","平均分","总分");          

                                                             printf("%ld\t%s\t%s\t%s\t",stu[j].num, stu[j].name, stu[j].sex,stu[j].address);     

                                                             for(i=0;i<3;i++)             

                                                             printf("%d\t", stu[j].score[i]);                

                                                             printf("%d\t", stu[j].ave);              

                                                             printf("%d\t", stu[j].sum);             

                                                             printf("\n\n");     

                                                             }         

                                                             printf("\n 按任意键返回.\n");  

                                                             getch();    

                                                             enter();

}

 void add()                             /*学生信息的增加*/

 {

                                                               int i,x;

                                                               char a, w;

                                                               struct student *p;

                                                               p=stu+t;

                                                                    system("cls");

                                                               printf("\n\t\t\t增加学生信息.\n");

      do

                                                               {  

                                                                 printf("请输入第%d 个学生的信息.\n\n",t+1);                    

                                                                 printf("学号:\n");     

                                                                 scanf("%ld",&p->num);  

                                                                 printf("\n");      

                                                                 printf("姓名:\n");     

                                                                 scanf("%s",p->name);     

                                                                 printf("\n");

                                                                 printf("性别:\n");     

                                                                 scanf("%s",p->sex);

                                                                 printf("\n");

                                                                 printf("地区:\n");            

                                                                 scanf("%s",p->address);          

                                                                 printf("\n");        

                                                                 printf("三门成绩:1.语文.2.数学.3.英语.\n");

                                                                 for(i=0;i<3;i++)       

                                                                        scanf("%d",&p->score[i]);

                                                                 for(i=0;i<3;i++)              

                                                                 p->sum = p->score[0] + p->score[1] + p->score[2];    

                                                                 p->ave = p->sum/3;  

                                                                 a=getchar();      

                                                                 printf("\n 是否要继续输入学生信息,如果是请按 y;不是请按 n.\n\n");

                                                                 w=getchar();     

                                                                 p++;   

                                                                 t++;   

                                                                 if(w=='y'||w=='Y')    

                                                                 {               

                                                                        x=1;  

                                                                 }       

                                                                 if(w=='n'||w=='N')    

                                                                 {              

                                                                        x=0;          

                                                                        break;

                                                                 }

                                                               }while(x==1) ;

                                                              

                                                               if(x==0)

                                                               {   

                                                                 printf("\n");

                                                                 printf("按任意键返回.\n");

                                                                 getch();

                                                                 enter(); 

                                                               }

  }

  void delet()                           /*学生信息的删除*/

 {                                                          

                                                              long b;

                                                              int z,j;

                                                              int r=t;

                                                              char c,x;

                                                              struct student *p; 

                                    system("cls");

                                                              printf("\n\t\t\t删除学生信息\n");               

                                                              printf(" 请输入要删除学生的学号:\n\n"); 

                                                              scanf("%ld",&b);    

                                                              for(p=stu;p<stu+t;p++)          

                                                                if(p->num==b)                 

                                                                       break;

                                                                else

                                                                       r--;       

                                                                if(r==0)               

                                                                {                  

                                                             printf("你要删除的学生不存在,请按任意键返回.\n");

                                                                       getch();

                                                                       enter();

                                                                }         

                                                                printf("\n 你要删除的学生为:\n");        

                                                                    printf("%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n\n","学号","姓名","性别","地区","语文 ","数学","英语","平均分","总分");                        

                                                                  printf("%-8ld%-8s%-8s%-8s",p->num,p->name,p->sex,p->address);                     

                                                                for(j=0;j<3;j++)                               

                                                                       printf("%-8d",p->score[j]);       

                                                                printf("%-8d",p->ave);      

                                                                printf("%-8d",p->sum);                   

                                                                 printf("\n你确定要删除吗?如是请输入 y;不是请输入 n.\n");                   

                                                                x=getchar();               

                                                                c=getchar();               

                                                                if(c=='y'||c=='Y')               

                                                                {                               

                                                                       for(p=stu;p<stu+t;p++)                                    

                                                                              *p=*(p+1);                        

                                                                       t--;                    

                                                                        printf("系统已为你删除信息,请按任意键返回.\n");                  

                                                                       getch();              

                                                                       enter();               

                                                                }                 

                                                                if(c=='n'||c=='N')                 

                                                                {                         

                                                                       printf("删除信息取消!按任意键返回.\n");                         

                                                                       getch();             

                                                                       enter();                       

                                                                }

  } 

  void amend()                         /*学生信息的修改*/

  {                                                        

                                                               long j;   

                                                               int i,z,r=t;      

                                                               char c,d,e,f,q,u,l,v,m,k,h1,h2,h3,h4;  

                                                               struct student *p; 

                                                               system("cls");      

                                                               printf("\n\t\t\t修改学生信息\n");      

                                                               printf(" 请输入要修改学生的学号:\n\n");

                                                               scanf("%ld",&j);  

                                                               for(p=stu;p<stu+t;p++)               

                                                                 if(p->num==j)                  

                                                                        break;                

                                                                 else                    

                                                                        r--;            

                                                                 if(r==0)             

                                                                 {                       

                                                                printf("你输入的学生不存在,请按任意键返回.\n");                      

                                                                        getch();                     

                                                                        enter();              

                                                                 }                

                                                                 printf("\n 你要修改的学生为:\n");     

                                                                 printf("%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n\n","学号","姓名","性别","地区","语文 ","数学","英语","平均分","总分");                   

                                                                 printf("%-8ld%-8s%-8s%-8s",p->num,p->name,p->sex,p->address);                                        

                                                                 for(j=0;j<3;j++)                                     

                                                                        printf("%-8d",p->score[j]);             

                                                                 printf("%-8d",p->ave);            

                                                                 printf("%-8d",p->sum);            

                                                                   printf("\n\n 是否要修改学号:是请按 y;不是请按 n.\n\n");                

                                                                 l=getchar();               

                                                                 c=getchar();      

                                                                 if(c=='y'||c=='Y')       

                                                                 {                       

                                                                        printf("请输入正确的学号:\n\n");              

                                                                        scanf("%ld",&p->num);          

                                                                 }                

                                                                 if(c=='n'||c=='N')                      

                                                                        z=1;            

                                                                    printf("是否要修改姓名:是请按 y;不是请按 n.\n\n");           

                                                                 q=getchar();              

                                                                 d=getchar();              

                                                                 m=getchar();             

                                                                 if(d=='y'||d=='Y')               

                                                                 {                     

                                                                        printf("请输入正确的姓名:\n");                 

                                                                        scanf("%s",p->name);                    

                                                                       u=getchar();        

                                                                 }                

                                                                 if(d=='n'||c=='N')              

                                                                        z++;           

                                                                    printf("\n 是否要修改性别:是请按 y;不是请按n.\n\n");                

                                                                 e=getchar();               

                                                                 k=getchar();              

                                                                 if(e=='y'||e=='Y')               

                                                                 {                       

                                                                        printf("请输入正确的性别:\n");                  

                                                                        scanf("%s",p->sex);          

                                                                 }                

                                                                 if(e=='N'||e=='n')              

                                                                        z++;           

                                                                     printf("\n 是否要修改地区:是请按 y;不是请按 n.\n\n");            

                                                                 h3=getchar();              

                                                                 h4=getchar();             

                                                                 if(h3=='y'||h3=='Y')           

                                                                 {                     

                                                                        printf("请输入正确的地区:\n");                  

                                                                        scanf("%s",p->address);          

                                                                 }                

                                                                 if(h3=='N'||h3=='n')                 

                                                                        z++;           

                                                                    printf("\n 是否要修改三门成绩:是请按 y;不是请按 n.\n\n");      

                                                                 f=getchar();               

                                                                 if(f=='y'||f=='Y')                

                                                                 {               

                                                                        printf("请输入正确的三门成绩:");                     

                                                                        for(i=0;i<3;i++)                     

                                                                               scanf("%d",&p->score[i]);                      

                                                                 p->sum = p->score[0] + p->score[1] + p->score[2];               

                                                                        p->ave = p->sum/3;         

                                                                 }                

                                                                 v=getchar();             

                                                                 if(f=='n'||f=='N')        

                                                                 {               

                                                                        printf("请按任意键返回.\n");                

                                                                        getch();                    

                                                                        enter();            

                                                                 }

}

void preside()                         /*学生信息的统计*/

{                                                          

                                                             int i,j,o=0,b=10,r=60;      

                                                             struct student *p;     

                                                             system("cls");

                                                             printf("\n\t\t\t 学生信息统计.\n");

                                                             printf("%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n\n","学号","姓名","性别","地区","语文 ","数学","英语","平均分","总分");

                                                              for(p=stu;p<stu+t;p++)

                                                              {             

                                                              printf("%-8ld%-8s%-8s%-8s",p->num,p->name,p->sex,p->address);               

                                                                for(j=0;j<3;j++)

                                                                       printf("%-8d",p->score[j]);                

                                                                printf("%-8d",p->ave);      

                                                                printf("%-8d",p->sum);              

                                                                printf("\n\n");     

                                                              }     

                                                              printf("\n\n\n");     

                                                              for(p=stu;p<stu+t;p++)  

                                                              {            

                                                                for(i=0;i<3;i++)

                                                                       if(p->score[i]<r)

                                                                       {

                                                                              b=b-1;o=o+1;

                                                                       printf("%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n\n","学号","姓名","性别","地区","语文 ","数学","英语","平均分","总分");

                                                                   printf("%-8ld%-8s%-8s%-8s",p->num,p->name,p->sex,p->address);

                                                                              for(j=0;j<3;j++)

                                                                                     printf("%-8d",p->score[j]);

                                                                              printf("%-8d",p->ave);

                                                                              printf("%-8d",p->sum);

                                                                              printf("\n\n");

                                                                              break;

                                                                       }

                                                              }     

                                                              if(b==10)       

                                                                printf("\n\n 班上所有的人都通过考试.\n\n");

                                                              else if(b<10)

                                                               printf("\n 以上为不及格的同学,全班不及格的人数为:%d 人.\n\n",o);

                                                              printf("\n");

                                                              printf("统计完成,请按任意键返回.\n");

                                                              getch();

                                                               enter();

 }

 void fint()                      /*查找学生信息*/

 {

                                                              int i,j=t;

                                                              long num_a;

                                                              struct student *p;

                                                              char a,b;

                                                              system("cls");

                                                              printf("\n\t\t\t查找学生信息\n");

                                                              printf("\t\t\t 请输入要查找的学生学号:\n");

                                                              scanf("%ld",&num_a);

                                                              for(p=stu;p<stu+t;p++)

                                                              {

                                                                j--;

                                                                if(p->num==num_a)

                                                                       break;

                                                                if(j==0)

                                                                {

                                                                       printf("不存在该学生,请按任意键返回.\n\n");

                                                                       a=getchar();

                                                                       getch();

                                                                       enter();

                                                                }

                                                              }    

                                                              printf("\n 你要查找的学生为:\n\n");

                                                                         printf("%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s%-8s\n\n","学号","姓名","性别","地区","语文 ","数学","英语","平均分","总分");

          printf("%-8ld%-8s%-8s%-8s",p->num,p->name,p->sex,p->address);

                                                              for(i=0;i<3;i++)

                                                                printf("%-8d",p->score[i]);

                                                              printf("%-8d",p->ave);

                                                              printf("%-8d",p->sum);

                                                              printf("\n\n 查找完成,请按任意键返回.");

                                                              b=getchar();

                                                              getch();

                                                              enter();

 }

 void output()                     /*退出系统*/

 {

                                                              system("cls");

                                                              exit(0);

 }

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