C语言实现学生选课系统

本文实例为大家分享了C语言实现学生选课系统的具体代码，供大家参考，具体内容如下

代码：

#include<stdio.h>
#include<windows.h>
#include<stdlib.h>
#include<conio.h>

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int  uint32_t;

#define CLASS_CLS  system("cls")
#define CLASS_NAME  80

typedef struct class
{
char name[CLASS_NAME]; /* 课程名称 -- 唯一性 */
uint32_t nature;    /* 课程性质(必修或者选修) */
uint32_t total_period; /* 课程总学时 */
uint32_t teach_period; /* 授课学时 */
uint32_t exper_period; /* 上机学时 */
uint32_t start_time;  /* 课程开始时间 */
uint8_t score;     /* 课程学分 */
uint8_t is_exsit;    /* 课程是否存在 */
struct class *next;
} class_t; // 课程结构体

class_t *head = NULL;
static uint32_t count = 1;

void play(char *text, int display, int time, int nu) //动画打印
{
CLASS_CLS;
int i, len;
for(i = 0; i <= nu; i++)
{
printf("\n");
}
for(i = 0; i < 25; i++)
{
printf(" ");
}
len = strlen(text);
for(i = 0; i < len; i++)
{
printf("%c", text[i]);
Sleep(display);
}
Sleep(time);
}

void titile(char *text, char *str)
{
CLASS_CLS;
uint8_t i;
for(i = 0; i < 25; i++)
{
printf(" ");
}
printf("%s\n", text);
for(i = 0; i <= 60; i++)
{
printf("%s", str);
}
printf("\n");
}

void menu(void)
{
titile("【学生选课系统】", "-");
printf("\n\t|-----------------------------------|");
printf("\n\t|      [1]--增加课程     |");
printf("\n\t|      [2]--浏览课程     |");
printf("\n\t|      [3]--查询课程     |");
printf("\n\t|      [4]--删除课程     |");
printf("\n\t|      [5]--修改课程     |");
printf("\n\t|      [Q]--退出系统     |");
printf("\n\t|-----------------------------------|");
}

void get_bat_data(void)
{
class_t *point, *q;
uint32_t count = 0;
FILE *fp = fopen("c:\\student_elective.dat", "rb");
rewind(fp);

point = (class_t *)malloc(sizeof(class_t));
head = point;

while(!feof(fp))
{
count++;
fread(point, sizeof(class_t), 1, fp);
point->next = (class_t *)malloc(sizeof(class_t));
q = point;
point = point->next;
}
q->next = NULL;
fclose(fp);
}

void save_bat_data(void)
{
class_t *point = head;
FILE *fp = fopen("c:\\student_elective.dat", "w+");

while(NULL != point)
{
count++;
fwrite(point, sizeof(class_t), 1, fp);
point = point->next;
}
fclose(fp);
}

uint32_t num_check(void)
{
char ch;
uint32_t sum = 0;

while(1)
{
ch = getch();
if('\n' == ch || '\r' == ch)
{
return sum;
}
else if('\b' == ch)
{
sum /= 10;
printf("\b \b");
}
else if(('0' <= ch) && ('9' >= ch))
{
sum *= 10;
sum += ch - '0';
printf("%d", ch - '0');
}
}

}

void create(void)
{
class_t *point, *q;
char tmp[CLASS_NAME], ch;
uint8_t flag = 0;

while(1)
{
if(1 != count)
{
printf("是否继续增加课程(y/n):");
gets(tmp);
if(strcmp(tmp, "n") == 0)
{
break;
}
}

point = (class_t *)malloc(sizeof(class_t));
point->is_exsit = 0;
printf("\n====请输入第%d个选修课程信息====\n", count);
printf("选择课程名称：");
gets(point->name);
q = head;
while(NULL != q)
{
if(strcmp(q->name, point->name) == 0)
{
flag = 1;
printf("课程名称重复或者不合格，请重新输入...\n");
break;
}
q = q->next;
}
if(1 == flag)
{
continue;
}

printf("课程性质:");
printf("\n[B]--【必修】 [X]--【选修】");
while(1)
{
ch = getch();
if(ch == 'b' || ch == 'B')
{
point->nature = 1;
break;
}
if(ch == 'x' || ch == 'X')
{
point->nature = 2;
break;
}
}

printf("\n输入总学时：(只接受数字！)");
point->total_period = num_check();
printf("\n输入授课学时：(只接受数字！)");
point->teach_period = num_check();
printf("\n输入上机学时：(只接受数字！)");
point->exper_period = num_check();
printf("\n输入本课程学分：(只接受数字！)");
point->score = num_check();
printf("\n输入开课学期：(只接受数字！)");
point->start_time = num_check();
point->is_exsit = 1;

point->next = head;
head = point;
count++;
}

printf("信息录入完毕，按任意键继续……");
getch();
}

void display(void)
{
class_t *point = head;

CLASS_CLS;
titile("【查看课程】", "-");
printf("\n名称      \t性质\t总学时\t授课学时\t上机学时\t学分\t开课学期");

while(NULL != point)
{
if(1 == point->is_exsit)
{
printf("\n%-14s  ", point->name);
if(1 == point->nature)
{
printf("必修课");
}
else
{
printf("选修课");
}
printf("   %d时   %d时      %d时      %d分   %d时", point->total_period, point->teach_period, point->exper_period, point->score, point->start_time);
}
point = point->next;
}
getch();
}
// 对照学生管理系统自行拓展
void search(void)
{

}

void modify(void)
{

}

void delete(void)
{

}

int main(void)
{
uint8_t value;
uint8_t movie = 1;
char choice[3];

FILE *fp = fopen("c:\\student_elective.dat", "a");
fclose(fp);

system("color 30");
system("mode con:cols=100 lines=35");
system("title 【选修课系统】");

if(1 == movie)
{
play("欢迎使用【选修课系统】", 80, 1500, 10);
}

while(1)
{
CLASS_CLS;
menu();
do
{
gets(choice);
value = atoi(choice);
}
while((value > 12) || (value < 0));
switch(value)
{
case 1:
create();
break;
case 2:
display();
break;
case 3:
search();
break;
case 4:
modify();
break;
case 5:
delete();
break;
case 6:
save_bat_data();
break;
case 7:
get_bat_data();
break;
case 8:
exit(1);
break;

default:
break;
}
}

return 0;
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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