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学生管理系统

时间:2014-07-26 14:23:51      阅读:325      评论:0      收藏:0      [点我收藏+]

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Home Assignment:-

  * Create a menu driven application where you will have 2 types of users to login in Admin and Student
  *写一个面板程序,要求用户可以Admin和Student两种用户身份进入系统

  *Admin下你需要用以下结构体登记学生信息
The Admin will register the student along with all his detail as per the below strucutre
struct Student{
   int rollno;
   char name[20];
   char address[30];
   char username[10]
   char password[10]
   float EnglishMarks;
   float MathsMarks
   float ScienceMarks
   float total
   float average;
   char grade.
}

  *至少登记5位学生的信息,并且所有的学生信息都得储存在数组中
Register atleast 5 students and all the students will be stored into and array of students :-
 e.g :- struct student studlist[10];

  *关于总成绩、平均值。
 
calculate the total, average
Grade will be calculated as per following:-
  *成绩评定标准如下
if average is above 90:- ‘A‘
        75-90 -‘B‘
        50-74 -‘C‘
        less than 50 ‘F‘

Sample Output:-

   Main Menu:-

   1.Login as Administrator
   2.Login as Student
   Enter Your Choice:-1

   Enter Username:-admin
   Enter Password:-admin

   Welcome Admin
   Admin Menu
   1. Register Student
   2.View Students
   3. Exit
   Enter Choice:- 1

   Enter Details of Student
   Rollno:-101
   Name  :-Scott
   Address :- Wuxi
   username:- scott
   password:- scott
   English Marks:- 60
   Maths Marks :- 78
   Science Marks:- 90

   Student Registered Successfully !!!

   Admin Menu
   1. Register Student
   2.View Students
   3. Exit
   Enter Choice:- 3

    Main Menu:-

   1.Login as Administrator
   2.Login as Student
   Enter Your Choice:-2

   Enter Username:-scott
   Enter Password:-scott
   
   Welcome Student
   Student Menu
   1. View Marks
   2. Exit
   Enter Choice:- 1

   English   MAths  Science Total  AVERAGE Grade
    60        78        90        228        76           B

 

 

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

void mainMenu();
void admin();
void adminMenu();
void student();
void studentMenu();
void viewStudents();
void viewMarks();
void registerStudent();
void exit();
int  isEqual(char a[],char b[]);

struct Student{
   int rollno;
   char name[20];
   char address[30];
   char username[10];
   char password[10];
   float EnglishMarks;
   float MathsMarks;
   float ScienceMarks;
   float total;
   float average;
   char grade;
}studlist[10];
int x=-1;      // student index is find,-1 means not find
int index=0;   // register numbers of students
//主方法
void main(){
    int choice;
    char username[10]="admin";            //admin username
    char password[10]="admin";            //admin password
    while(1)
    {
    mainMenu();
    scanf("%d",&choice);
    getchar();     //防止输入字符陷入死循环
    switch(choice)
    {
     case 1:
         char AName[10], AWord[10];
         printf("Enter Username:");
         scanf("%s",&AName);
         printf("Enter Password:");
         scanf("%s",&AWord);

        if(isEqual(AName,username) && isEqual(AWord,password))
           admin();
        else
         {
           printf("The username or password  is not right\n");
           main();
         }
         break;


     case 2:
         int i;
         char uName[10], pWord[10];
         printf("Enter Username:");
         scanf("%s",&uName);
         printf("Enter Password:");
         scanf("%s",&pWord);

        // printf("index=%d\n",index);

         for(i=0;i<index;i++)
         {  // printf("isEqualU()=%d,isEqualP()=%d ,%d\n ",isEqual(uName,studlist[i].username) ,isEqual(pWord,studlist[i].password),isEqual(uName,studlist[i].username) && isEqual(pWord,studlist[i].password));

                if(isEqual(uName,studlist[i].username) && isEqual(pWord,studlist[i].password))
                {
                    x=i; //将下标i赋值给全局变量x;
                    student();
                    
                }                
         }
         if(x==-1)
         {
         printf("The username or password  is not right\n");
         }
        break;
     default:printf("You enter the wrong choice!\n");

    }
    }
}

//主菜单
void mainMenu()
{  
  
   printf("---------------------------------------------\n");
   printf("------  Welcome to use StumentSystems! ------\n");
   printf("------      1.Login as Administrator   ------\n");
   printf("------      2.Login as Student         ------\n");
   printf("---------------------------------------------\n");
   printf("Enter Your Choice:");
   
     
}

//管理员菜单
void adminMenu(){
 int choice=-1;
  printf("---------------------------------------------\n");
  printf("------       1. Register Student       ------\n");
  printf("------       2.View Students           ------\n");
  printf("------       3. Exit                   ------\n");
  printf("---------------------------------------------\n");
  printf("Enter Your Choice:");
 
 
}


//学生菜单
void studentMenu()
{
  printf("---------------------------------------------\n");
  printf("------       1. View Marks             ------\n");
  printf("------       2. Exit                   ------\n");
  printf("---------------------------------------------\n");
  printf("Enter Your Choice:");
 
}
//管理员
void admin(){
    int choice=-1;
    while(choice!=3)
    {
    adminMenu();
    scanf("%d",&choice);
    switch(choice)
    {
      case 1:registerStudent();break;
      case 2:viewStudents();break;
      case 3:exit();break;
      default:printf("You enter the wrong choice!\n");
    }
    }
}
//学生
void student(){
    int choice=-1;
    while(choice!=2)
    {
    studentMenu();
    scanf("%d",&choice);
    switch(choice)
    {
      case 1:viewMarks();break;
      case 2:exit();break;
      default:printf("You enter the wrong choice!\n");
    }
    }
}

//登记学生信息
void registerStudent()
{
 
 printf("Enter Details of Student\n");
 printf("Rollno:");
 scanf("%d",&studlist[index].rollno);
 printf("Name:");
 scanf("%s",studlist[index].name);
 printf("Address:");
 scanf("%s",studlist[index].address );
 printf("Username:");
 scanf("%s",studlist[index].username);
 printf("Password:");
 scanf("%s",studlist[index].password);
 printf("English Marks:");
 scanf("%f",&studlist[index].EnglishMarks);
 printf("Maths Marks:");
 scanf("%f",&studlist[index].MathsMarks);
 printf("Science Marks:");
 scanf("%f",&studlist[index].ScienceMarks);
  //总分 平均分 和 等级
 studlist[index].total=studlist[index].EnglishMarks+studlist[index].MathsMarks+studlist[index].ScienceMarks;
 studlist[index].average=(studlist[index].EnglishMarks+studlist[index].MathsMarks+studlist[index].ScienceMarks)/3;
 if(studlist[index].average>=90)
 {
   studlist[index].grade=A;
 }
 else if(studlist[index].average<90&&(studlist[index].average>=75))
 {
    studlist[index].grade=B;
 }
 else if(studlist[index].average<75&&(studlist[index].average>=50))
 {
    studlist[index].grade=C;
 }
 else
 {
    studlist[index].grade=F;
 }
 printf("Student Registered Successfully !!!\n");

 index++;
 }

//查看学生信息
 void viewStudents()
 {
    int i=0;
   
    printf("Rollno   name   Address  username   password  \n");
     for(i=0;i<index;i++)
          printf("%d       %s      %s      %s         %s  \n",studlist[i].rollno,studlist[i].name,studlist[i].address,
studlist[i].username,studlist[i].password); }
//查看学生分数 void viewMarks() { printf("English MAths Science Total AVERAGE Grade \n"); printf("%.2f %.2f %.2f %.2f %.2f %c \n",studlist[x].EnglishMarks,studlist[x].MathsMarks,
studlist[x].ScienceMarks,studlist[x].total,studlist[x].average,studlist[x].grade); }
//退出 void exit() { system("cls"); void main(); } //字符串是否相等 int isEqual(char a[],char b[]) { int i,j,lenA,lenB; lenA=strlen(a); lenB=strlen(b); if(lenA==lenB) { for(i=0;i<lenA;i++) { if(a[i]!=b[i]) { return 0; } } return 1; } return 0; }





 

学生管理系统,布布扣,bubuko.com

学生管理系统

标签:style   blog   color   io   for   div   ar   管理   

原文地址:http://www.cnblogs.com/thrive/p/3869807.html

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