C语言学生信息管理系统项目源码

#include   //包含printf()、scanf()、gets()、puts()、getchar()函数
#include   //包含malloc()函数
#include   //包含strcmp()、strlen()、sizeof()、strcpy()函数
#include  //包含system()、sleep()函数
#include   //包含exit()函数

#define arrSize 256

#define sleepTime 50

void countBackwards() 
{
 for (int i=3; i>=0; )
 {
  //\r表示光标重新到达行首
  printf("\r离程序退出还有%d秒", i--);
  Sleep(sleepTime);
 }
 //函数声明
 void exitPrograms(); 
 exitPrograms();
}

void fullScreen()
{
 HWND hwnd=GetForegroundWindow();
 int x=GetSystemMetrics(SM_CXSCREEN)+300, y=GetSystemMetrics(SM_CYSCREEN)+300;
 char setting[30];
 //设置控制台行列数
 sprintf(setting, "mode con:cols=%d lines=%d", x, y); 
 system(setting);
 //置顶
 SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, x+200, y+200, NULL); 
 //移动
 MoveWindow(hwnd, -5, -20, x+200, y+200, 1); 
 printf("\n\n");
}

void wait()
{
 for (int i=0; i < 24; i++)
 {
  Sleep(sleepTime);printf(".");
 }
 puts("\n");
}

void hello()
{
 for (int i=0; i < 5; i++)
 {
  Sleep(sleepTime);printf("X");
 }

 Sleep(sleepTime);printf(" ");
 Sleep(sleepTime);printf("欢");
 Sleep(sleepTime);printf("迎");
 Sleep(sleepTime);printf("来");
 Sleep(sleepTime);printf("到");
 Sleep(sleepTime);printf("学");
 Sleep(sleepTime);printf("生");
 Sleep(sleepTime);printf("信");
 Sleep(sleepTime);printf("息");
 Sleep(sleepTime);printf("管");
 Sleep(sleepTime);printf("理");
 Sleep(sleepTime);printf("系");
 Sleep(sleepTime);printf("统");
 Sleep(sleepTime);printf(" ");

 for (int k=0; k < 5; k++)
 {
  Sleep(sleepTime);printf("X");
 }
 puts("\n");
}

void checkUsernamePassword()
{
 char username[] = "xinke", username0[arrSize];
 char password[] = "2016", password0[arrSize];
 
 for(int i=1; i<4; i++)
 {
  printf("请输入用户名:");
  gets(username0); 
  if (strcmp(username, username0) != 0)
  {
   puts("用户名错误!");
   printf("3次输入错误将退出程序,错误%d次!\n\n", i);
   if (i == 3)
   {
    printf("程序即将退出");
    wait();
    system("cls");
    //调用倒计时函数
    countBackwards(); 
   }
  }
  else
  {
   i=3; 
   puts("用户名正确!\n");
   
   for (int a=1; a<4; a++)
   {
    printf("请输入密码:");
    gets(password0);
    if (strcmp(password, password0) != 0)
    {
     puts("密码错误!");
     printf("3次输入错误将退出程序,错误%d次!\n\n", a);
     if (a == 3)
     {
      puts("程序即将退出");
      wait();
      system("cls");
      //调用倒计时函数f
      countBackwards(); 
      break;
     }
    }
    else
    {
     a=3;
     printf("密码正确,即将进入程序");
     wait();
     system("cls");
    }
   }
  }
 }
}

void menu()
{
 puts("::::::请输入您要选择的操作编码::::::");
 puts("1. 添加新学生的信息");
 puts("2. 根据学号查找学生信息功能");
 puts("3. 根据姓名查找学生信息功能");
 puts("4. 根据学号修改学生信息功能");
 puts("5. 根据学号删除学生信息功能");
 puts("6. 根据姓名删除学生信息功能");
 puts("7. 输入0退出");
 puts("::::::::::::::::::::::::::::::::::::");                                                                                                                                                                                       
}

struct student
{
 int num;    //6位数字且唯一,不能添加相同学号的学生,添加的学生信息要永久保存
 char name[arrSize];  //可以重复
 char birthday[arrSize]; //出生年月格式为1990-08-23
 char sex[arrSize];  //性别
 char adress[arrSize]; //家庭地址
 char phone[arrSize]; //联系方式为11位电话号码或是0710-9999999的格式

 struct student *next;   
};

static struct student *head = NULL; 

struct student *createStudent(int num, char name[arrSize], char birthday[arrSize], char sex[arrSize], char adress[arrSize], char phone[arrSize], struct student *next)
{
 struct student *tmp;
 
 tmp = (struct student*)malloc(sizeof(struct student));
 tmp->num = num;
 strcpy(tmp->name, name);
 strcpy(tmp->birthday, birthday);
 strcpy(tmp->sex, sex);
 strcpy(tmp->adress, adress);
 strcpy(tmp->phone, phone);

 tmp->next = next;

 return tmp;
}

void addStudent(int num, char name[arrSize], char birthday[arrSize], char sex[arrSize], char adress[arrSize], char phone[arrSize])
{
 struct student *tmp = head->next;
 struct student *tmp1 = head;
 struct student *newnode = createStudent(num, name, birthday, sex, adress, phone, NULL);
 
 while (tmp != NULL)
 {
  if (tmp->num >= num)
  {
   newnode->next = tmp;
   tmp1->next = newnode;
   break;
  }
  tmp1 = tmp1->next;
  tmp = tmp->next;
 }
 if (tmp == NULL)
 {
  tmp1->next = newnode;
 }
}

void findStudentFromNum(int num)
{
 struct student *tmp = head->next;
 int flag1;
 while (tmp != NULL)
 {
  if (tmp->num == num)
  {
   flag1 = 1;
   system("cls");
   puts("恭喜您!找到了该学生,信息如下:\n学号\t姓名\t出生日期\t性别\t家庭地址\t联系方式");
   printf("%d\t%s\t%s\t%s\t%s\t\t%s\n\n", tmp->num, tmp->name, tmp->birthday, tmp->sex, tmp->adress, tmp->phone);
   break;
  }
  tmp = tmp->next;
 } 
 if (flag1 != 1)
 {
  puts("系统中不存在该学生的信息!");
 }
}

void findStudentFromName(char name[arrSize])
{
 struct student *tmp = head->next;
 int flag2;
 while (tmp != NULL)
 {
  if (strcmp(tmp->name, name) == 0)
  {
   flag2 = 1;
   system("cls");
   puts("恭喜您!找到了该学生,信息如下:\n学号\t姓名\t出生日期\t性别\t家庭地址\t联系方式");
   printf("%d\t%s\t%s\t%s\t%s\t\t%s\n\n", tmp->num, tmp->name, tmp->birthday, tmp->sex, tmp->adress, tmp->phone);
   break;
  }
  tmp = tmp->next;
 } 
 if (flag2 != 1)
 {
  puts("系统中不存在该学生的信息!");
 }
}

void modifyStudentFromNum(int num, char name[arrSize], char birthday[arrSize], char sex[arrSize], char adress[arrSize], char phone[arrSize])
{
 struct student *tmp = head->next;
 
 while (tmp != NULL)
 {
  if (tmp->num == num)
  {
   strcpy(tmp->name, name);
   strcpy(tmp->birthday, birthday);
   strcpy(tmp->sex, sex);
   strcpy(tmp->adress, adress);
   strcpy(tmp->phone, phone);
   break;
  }
  tmp = tmp->next;
 } 
}

void deleteStudentFromNum(int num)
{
 struct student *tmp = head->next;
 struct student *tmp1 = head;
 
 while (tmp != NULL)
 {
  if (tmp->num == num)
  {
   tmp1->next = tmp->next;
   free(tmp);
   break;
  }
  tmp = tmp->next;
  tmp1 = tmp1->next;
 }
}

void deleteStudentFromName(char name[arrSize])
{
 struct student *tmp = head->next;
 struct student *tmp1 = head;
 
 while (tmp != NULL)
 {
  if (strcmp(tmp->name, name) == 0)
  {
   tmp1->next = tmp->next;
   free(tmp);
   break;
  }
  tmp = tmp->next;
  tmp1 = tmp1->next;
 }
}

void printList()
{
 struct student *tmp;
 tmp = head->next;

 puts("学号\t姓名\t出生日期\t性别\t家庭地址\t联系方式");
 while (tmp)
 {
  printf("%d\t%s\t%s\t%s\t%s\t\t%s\n", tmp->num, tmp->name, tmp->birthday, tmp->sex, tmp->adress, tmp->phone);
  tmp = tmp->next;
 }
}

void freeList()
{
 struct student *tmp = head;
 struct student *tmp1;
 
 while (tmp)
 {
  tmp1 = tmp;
  tmp = tmp->next;
  free(tmp1);
 } 
}

void exitPrograms()
{
 system("cls");
 printf("请输入0退出程序:");
 exit(getch());
}

int x;

int checkNumStrlen()  
{
 
 while(1)
 {
  char num[arrSize];
  printf("请输入要添加的学生学号:");
  scanf("%s", num);
  if (strlen(num) == 6)  
  {
   x = atoi(num);
   //函数声明
   int checkNumNoSame(); 
   checkNumNoSame();
   return x;
  }
  else
  { 
   puts("学号必须为6位数!\n");
  }
 }
}

int checkNumNoSame()    
{ 
 struct student *tmp = head->next;

 while(1)
 {
  if (tmp == NULL)
  {
   return x;
  }
  if (tmp->num == x)
  {
   printf("已存在该学号,请重新输入!\n\n");
   checkNumStrlen();
   break;
  }
  tmp=tmp->next;
 }
}

int main(void)
{
 fullScreen();    //调用全屏函数

 system("color 0C");   //背景为黑色,前景为淡红色

    checkUsernamePassword(); //验证用户名和密码

 printf("系统正在初始化,请稍候");
 wait();      //稍候效果......
 system("cls");
 
 system("color 0A");
 for (int i=50000; i>=0; i--)
 {
  printf("%d", rand());
  Sleep(0.000001);
 }
 system("cls");

 hello();    //动态显示欢迎信息

 system("color 0A"); //背景为黑色,前景为淡绿色

 menu(); //打印菜单栏
 
 struct student *stu1;
 struct student *stu2;
 struct student *stu3;
 struct student *stu4;
 struct student *tmp;

 
 stu1 = createStudent(201601, "Alan", "1997-09-15", "女", "墨西哥", "13871745572", NULL);
 stu2 = createStudent(201602, "Bobo", "1994-08-25", "男", "亚马逊", "0710-1452637", NULL);
 stu3 = createStudent(201603, "John", "1996-02-23", "男", "莫斯科", "13476320757", NULL);
 stu4 = createStudent(201604, "Cici", "1995-11-12", "女", "太平洋", "0710-4567894", NULL);
 
 
 head = (struct student*)malloc(sizeof(struct student));
 head->num = -1;
 head->next = NULL;

 
 head->next = stu1;
 stu1->next = stu2;
 stu2->next = stu3;
 stu3->next = stu4;
 stu4->next = NULL;
 
 
 FILE *fp;
 struct student tmps;
 struct student *tmp_head;
 fp = fopen("student.txt", "rt");
 if (fp == NULL)
 {
  perror("fopen");
  return -1;
 }
 tmp_head = head;
 memset(&tmps, 0, sizeof(struct student));
 while (fread(&tmps, sizeof(struct student), 1, fp) > 0)
 {
  tmp_head->next = createStudent(tmps.num, tmps.name, tmps.birthday, tmps.sex, tmps.adress, tmps.phone, NULL);
  tmp_head = tmp_head->next;
  memset(&tmps, 0, sizeof(struct student));
 }
 fclose(fp);
  
 int num;
 char temp[arrSize] = {0}; //用于以字符串形式接收的学号成员转换为int类型的中间变量
 char name[arrSize]={0}, birthday[arrSize]={0}, sex[arrSize]={0}, adress[arrSize]={0}, phone[arrSize]={0};

 int choice = 0;
 while(1)
 {
  ret:
  printf("\n请选择1-7:");
  fflush(stdin);
  scanf("%d", &choice);
  fflush(stdin);
  switch(choice)
  {
   case 1:
    puts("请分别输入要添加的学生的信息");
    num=checkNumStrlen();
    printf("请输入要添加的学生姓名:");
    fflush(stdin);
    scanf("%s", name);

    ret1: //用于跳转语句1
    printf("请输入要添加的学生出生日期:");
    scanf("%s", birthday);
    
    if ((birthday[4] != '-') || (birthday[7] != '-'))
    {
     puts("您输入的出生日期格式有误,请按照:1990-09-20的格式输入!\n");
     goto ret1;
    }

    ret2: //用于跳转语句2
    
    while (1)
    {
     printf("请输入要添加的学生性别:");
     scanf("%s", sex);
     if ((strcmp(sex, "男") == 0) || (strcmp(sex, "女") == 0))
     {
      break;
     }
     else
     {
      puts("您输入的性别格式有误,请输入男或女!\n");
      goto ret2;
     }
    }
    printf("请输入要添加的学生家庭地址:");
    scanf("%s", adress);

    ret3: //用于跳转语句3
    
    while (1)
    {
     printf("请输入要添加的学生联系方式:");
     scanf("%s", phone);
     if ((strlen(phone) == 11) || ((strlen(phone) == 12) && (phone[4] == '-')))
     {
      break;
     }
     else
     {
      puts("您输入的联系方式格式有误,请按照:11位数字或者0710-9999999的格式输入!\n");
      goto ret3;
     }
    }
    
    system("cls");
    printf("系统正在添加学生信息,请稍候");wait();
    addStudent(num, name, birthday, sex, adress, phone);
    Sleep(100);
    puts("\n恭喜您!信息添加成功!\n");
    printList();
    puts("\n");
    menu();
   break;
   
   case 2:
    printf("请输入要查找的学生学号:");
    scanf("%d", &num);
    system("cls");
    printf("系统正在查找学生信息,请稍候");wait();
    findStudentFromNum(num);
    printf("\n");
    printList();
    puts("\n");
    menu();
   break;

   case 3:
    printf("请输入要查找的学生姓名:");
    scanf("%s", name);
    system("cls");
    printf("系统正在查找学生信息,请稍候");wait();
    findStudentFromName(name);
    printf("\n");
    printList();
    puts("\n");
    menu();
   break;

   case 4:
    printf("请输入要修改的学生学号:");
    scanf("%d", &num);
    printf("请输入要修改的学生姓名:");
    scanf("%s", name);
    printf("请输入要修改的学生出生日期:");
    scanf("%s", birthday);
    printf("请输入要修改的学生性别:");
    scanf("%s", sex);
    printf("请输入要修改的学生家庭地址:");
    scanf("%s", adress);
    printf("请输入要修改的学生联系方式:");
    scanf("%s", phone);
    system("cls");
    printf("系统正在修改学生信息,请稍候");
    wait();
    modifyStudentFromNum(num, name, birthday, sex, adress, phone);
    Sleep(100);
    puts("\n恭喜您!信息修改成功!\n");
    printList();
    puts("\n");
    menu();
   break;

   case 5:
    printf("请输入要删除的学生学号:");
    scanf("%d", &num);
    puts("\n");
    system("cls");
    printf("系统正在删除学生信息,请稍候");
    wait();
    deleteStudentFromNum(num);
    Sleep(100);
    puts("\n恭喜您!信息删除成功!\n");
    printList();
    puts("\n");
    menu();
   break;
  
   case 6:
    printf("请输入要删除的学生姓名:");
    scanf("%s", name);
    system("cls");
    printf("系统正在删除学生信息,请稍候");
    wait();
    deleteStudentFromName(name);
    Sleep(100);
    puts("\n恭喜您!信息删除成功!\n");
    printList();
    puts("\n");
    menu();
   break;
   
   case 7:
    
    fp = fopen("student.txt", "wt");
    if (fp == NULL)
    {
     perror("fopen");
     return -1;
    }
    tmp_head = head->next;
    while (tmp_head)
    {
     fwrite(tmp_head, sizeof(struct student), 1, fp);
     tmp_head = tmp_head->next;
    }
    fclose(fp);

    exitPrograms();
   break;

   default:
    puts("您输入的操作编号不在本系统服务区范围,请输入数字1-7!");
    goto ret;
   break;
  } 
 }

 freeList();
 
 return 0;
}