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本文實例為大家分享了C語言實現學生選課管理系統的具體代碼，供大家參考，具體內容如下
這是我們大一C語言課程設計的最終作品，涉及文件讀寫操作、鏈表的一系列操作。
源代碼由頭文件all.h、主函數文件main.cpp以及功能函數文件student.cpp、manager.cpp、common.cpp組成。
涉及的文件讀寫操作需要先手動創建文件，文件路徑可以在all.h的宏定義中更改
使用vs2017的c++編譯器，兼容c語言，現貼上源代碼和運行截圖，供感興趣的童鞋參考，水平有限還望多多包涵。
運行截圖
all.h
#pragma once
#define MAXN 50
#define STU_F "C:\\stu_cour_info_system\\date\\student.txt" //文件存放路徑及文件名
#define COUR_F "C:\\stu_cour_info_system\\date\\course.txt" //文件存放路徑及文件名
#define MAN_F "C:\\stu_cour_info_system\\date\\manager.txt" //文件存放路徑及文件名
#define STU_F_BACKUP "C:\\stu_cour_info_system\\backup\\student.txt" //備份文件存放路徑及文件名
#define COUR_F_BACKUP "C:\\stu_cour_info_system\\backup\\course.txt" //備份文件存放路徑及文件名
#define MAN_F_BACKUP "C:\\stu_cour_info_system\\backup\\manager.txt" //備份文件存放路徑及文件名
struct student //學生信息結構體
{
char name[MAXN]; //姓名
char num[MAXN]; //學號
char sch_cla[20]; //學院和班級
double score_all = 0; //應選總學分
double score_sel = 0; //已選課總學分
char password[9]; //學生登陸密碼,共8位
int course_sum; //選課總數
char course[50][MAXN]; //記錄選課課程的編號
struct student *next; //鏈表指針
};
struct course //課程信息結構體
{
char num[MAXN]; //課程編號
char name[MAXN]; //課程名稱
char nature[MAXN]; //課程性質
char term[MAXN]; //開課學期
double time_all; //總學時
double time_teach; //授課學時
double time_exp; //實驗或上機學時
double score; //該課程學分
int stu_max; //能夠容納的學生總數
int stu_sum; //已經選課學生總數
char stu[100][MAXN]; //已經選課學生學號
struct course *next; //鏈表指針
};
/*通用函數*/
int judge_num(char *ch); //用于檢測輸入的字符串ch是否全部為數字,全部為數字則返回1，否則返回0
int input_num(); //用于輸入數字，如果輸入的全部為數字則返回該數字，否則一直停在輸入狀態
double input_double(); //用于輸入小數
int input_limit(int n); //輸入選項，控制輸入的數字范圍為0-n,在這個范圍內則返回該數字，否則一直停在輸入狀態
int input_limit0(int n);
int keyexam(char *actual_key, char *input_key); //密碼檢測函數,x為密碼位數，actul_key[]為真實密碼,input_key為輸入密碼，密碼匹配返回1否則返回0
student* load_stu(); //將學生文件生成鏈表,返回鏈表頭指針
void store_stu(student *p_head); //將學生鏈表存入學生文件,需傳入鏈表頭指針
course* load_cour(); //將課程文件生成鏈表，返回鏈表頭指針
void store_cour(course *p_head); //將課程鏈表存入課程文件，需傳入鏈表頭指針
student* locate_end(student *head); //傳入頭節點，返回尾節點
course* locate_end(course *head); //傳入頭節點，返回尾節點
void help(); //顯示幫助信息
int link_count(student* head);
int link_count(course* head); //計算鏈表節點數量
int judge_ascii_num(char in[]); //檢測輸入是否全部為ASCII的數字，是返回1否則返回0
/*管理員函數*/
int man_login(); //管理員登陸函數，密碼正確返回1，否則返回0
int man_menu(); //管理員主菜單，返回對應的輸入值
void student_add(student *head); //增加學生的函數
void student_delete(student *head); //刪除學生的函數
void man_search_stu(student *head); //搜索學生的函數
void student_modify(student *head); //管理員修改學生信息
void course_add(course *head); //增加課程的函數
void course_delete(course *head); //刪除課程的函數
void course_modify(course *head); //修改課程信息的函數
void print_all(); //打印所有學生和課程的函數
void man_modifyKey(); //管理員修改密碼
void man_backups_recover(); //管理員備份和恢復數據
void courseshowone_man(course *ad); //管理員顯示一門課程信息
void courseshowall_man(course *ad); //管理員顯示所有課程信息
/*學生函數*/
student* stu_login(student* head); //學生登陸函數，學號和密碼都正確則返回鏈表中該學生的指針，錯誤則返回null
int stu_menu(); //學生菜單，返回對應的輸入值
void student_showone(student *p); //顯示一個學生的信息
void student_showall(student *head); //顯示所有學生的信息
student *studentnamefind_char(student *head, char tar[]); //根據學生姓名查找學生，如果學生為頭節點則返回空指針，不為頭節點則返回前一個節點的指針，不存在則返回尾節點
student *studentnamefind_num(student *head, char tar[]); //根據學生學號查找學生，如果學生為頭節點則返回空指針，不為頭節點則返回前一個節點的指針，不存在則返回尾節點
void stu_modifyKey(student* stu); //學生修改密碼
void coursechoose(course* head, student* stu); //選課函數,min為最少要達到的學分
void courseshow_nature(course *head); //根據課程性質查找并顯示課程信息
void courseshow_term(course *head); //根據開課學期查找并顯示課程信息
void cour_nat_te(course* head); //根據課程性質與開課學期組合查找課程信息
void coursenumfindtip(course *head); //查課子函數
void coursenamefindtip(course *head); //查課子函數2
void stu_dele_cour(course* head, student* stu); //刪除已選課程
/*課程函數*/
void course_showone(course *ad); //顯示一門的信息
void course_showall(course *head); //顯示所有課程的信息
void search_course(course *head); //搜索課程的函數
course *coursenamefind_char(course* head, char tar[]); //根據課程名稱查找課程節點，如果課程為頭節點則返回空指針，不為頭節點則返回前一個節點的指針，不存在則返回尾節點
course *coursenumfind_num(course* head, char tar[]); //根據課程編號查找課程，如果課程為頭節點則返回空指針，不為頭節點則返回前一個節點的指針，不存在則返回尾節點
main.cpp
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include"all.h"
student* stu_head;
course* cour_head;
course *cour_tail;
student *stu_tail; //這四個指針是全局變量
int main()
{
/*對四個指針變量初始化*/
stu_head = load_stu(); //stu_head指向學生鏈表頭
stu_tail = locate_end(stu_head); //stu_tail指向學生鏈表尾
cour_head = load_cour(); //cour_head指向課程鏈表頭
cour_tail = locate_end(cour_head); //cour_tail指向課程鏈表尾
//{/*這段代碼用于生成原始管理員密碼:10個0；
// 編譯鏈接后執行一次然后注釋掉*/
// FILE *fp = fopen(MAN_F, "w+");
// for (int i = 0; i < 10; i++)
// {
// fputc('0', fp);
// }
// fclose(fp);
//}
printf("\n\t\t--------------------------------歡迎使用選課系統！---------------------------------\n");
int status=-1;
while (1)//判斷登陸類型
{
status = -1;
printf("\n\n\t\t*****請選擇登陸類型 [1]學生 [2]管理員 [3]顯示幫助 [0]退出系統:");
status = input_limit0(3);
if ((status == 0) || (status == 1) || (status == 2)||(status==3))
break;
else
printf("\n\t\t##### 輸入錯誤！只能選擇1、2或0 #######\n");
}
while (1)
{
if (status == 2)//管理員登陸
{
if (man_login() == 1)
{
printf("\n\n\t\t-----------------------------------管理員登陸成功!--------------------------------\n\n");
int menu_return = man_menu();
while (1)
{
switch (menu_return)
{
case 1:
student_add(stu_head); break;
case 2:
student_delete(stu_head); break;
case 3:
student_modify(stu_head); break;
case 4:
man_search_stu(stu_head); break;
case 5:
course_add(cour_head); break;
case 6:
course_delete(cour_head); break;
case 7:
course_modify(cour_head); break;
case 8:
search_course(cour_head); break;
case 9:
print_all(); break;
case 10:
man_modifyKey(); break;
case 11:
man_backups_recover(); break;
case 0:
break;
default:
printf("\t\t\t#####輸入錯誤，請重新輸入######!\n");
}
if (menu_return == 0)
break;
menu_return = man_menu();
}
}
else
printf("\t\t######密碼錯誤，請重新登陸!######\n");
}
else if (status == 1)//student login
{
student* p_stu = stu_login(stu_head);
if (p_stu != NULL)//p_stu為指向該學生的指針
{
printf("\t\t*******請輸入登陸密碼:");
char input[100];
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(p_stu->password, input) == 0)
{
printf("\n\n\t\t-----------------------------%s 歡迎進入選課系統! ---------------------------------\n\n", p_stu->name);
int menu_return = stu_menu();
while (1)
{
switch (menu_return)
{
case 1:
course_showall(cour_head); break;
case 2:
search_course(cour_head); break;
case 3:
coursechoose(cour_head,p_stu); break;
case 4:
stu_dele_cour(cour_head, p_stu); break;
case 5:
student_showone(p_stu); break;
case 6:
stu_modifyKey(p_stu); break;
case 0:
break;
default:
printf("\t\t######輸入錯誤，請重新輸入!######\n");
}
if (menu_return == 0)
break;
menu_return = stu_menu();
}
}
else
{
printf("\t\t#####密碼錯誤，請重新登陸!#######\n");
}
}
else
printf("\t\t#####該學號不存在，請重新登陸!######\n");
p_stu = NULL;
}
else if (status == 3)//顯示幫助信息
help();
else if (status == 0)//關閉系統
return 0;
while (1)//再次判斷登陸類型
{
status = -1;
printf("\n\n\t\t*****請選擇登陸類型 [1]學生 [2]管理員 [3]顯示幫助 [0]退出系統:");
status = input_limit0(3);
if ((status == 0) || (status == 1) || (status == 2) || (status == 3))
break;
else
printf("\n\t\t##### 輸入錯誤！只能選擇1、2或0 #######\n");
}
}
}
common.cpp
#include<stdio.h>
#include<string.h>
#include"all.h"
#include<stdlib.h>
#include<malloc.h>
#include<ctype.h>
extern student* stu_head;
extern course* cour_head;
extern course *cour_tail;
extern student *stu_tail; // 這四個指針變量在main.cpp中已經聲明為全局變量
int keyexam(char *actual_key, char *input_key)//密碼正確則返回1，否則返回0
{
if (strcmp(actual_key, input_key) == 0)
return 1;
else
return 0;
}
student* load_stu()//經調試已經正確
{
int count = 0;
FILE *fp;
if ((fp = fopen(STU_F, "r")) == NULL)
{
printf("\t\tcannot open the file:STU_F\n");
exit(0);
}
student* temp = (student*)malloc(sizeof(student));
while (!feof(fp))
{
if (fread(temp, sizeof(student), 1, fp))
count++;
}
free(temp);
temp = NULL;
if (count == 0)
return NULL;
else
{
rewind(fp);
student *p_head = NULL;//文件中有鏈表信息，則創建一個頭指針
p_head = (student*)malloc(sizeof(student));
fread(p_head, sizeof(student), 1, fp);//用文件內容初始化鏈表節點
p_head->next = NULL;
count--;
student* p_new = p_head;
student* p_end = p_head;
for (int i = 0; i < count; i++)
{
p_new = (student*)malloc(sizeof(student));
fread(p_new, sizeof(student), 1, fp);
p_new->next = NULL;
p_end->next = p_new;
p_end = p_new;
}
fclose(fp);
return p_head;
}
}
void store_stu(student * p_head)//經調試已正確
{
FILE *fp;
if ((fp = fopen(STU_F, "w")) == NULL)//以只寫方式打開文件，覆蓋以前數據
{
printf("\t***STU_F missed,please quit the system and check for that!\n\n");
exit(0);
}
while (p_head != NULL)//將鏈表所有節點寫入緩沖區
{
fwrite(p_head, sizeof(student), 1, fp);//將鏈表一個節點寫入緩沖區
p_head = p_head->next; //p_head指向下一個節點
}
fclose(fp);//保存文件，清空緩沖區
}
course * load_cour()
{
int count = 0;
FILE *fp;
if ((fp = fopen(COUR_F, "r")) == NULL)
{
printf("\t\tcannot open the file:COUR_F\n");
exit(0);
}
course* temp = (course*)malloc(sizeof(course));
while (!feof(fp))
{
if (fread(temp, sizeof(course), 1, fp))
count++;
}
free(temp);
temp = NULL;
if (count == 0)
return NULL;
else
{
rewind(fp);
course *p_head = NULL;//文件中有鏈表信息，則創建一個頭指針
p_head = (course*)malloc(sizeof(course));
fread(p_head, sizeof(course), 1, fp);//用文件內容初始化鏈表節點
p_head->next = NULL;
count--;
course* p_new = p_head;
course* p_end = p_head;
for (int i = 0; i < count; i++)
{
p_new = (course*)malloc(sizeof(course));
fread(p_new, sizeof(course), 1, fp);
p_new->next = NULL;
p_end->next = p_new;
p_end = p_new;
}
fclose(fp);
return p_head;
}
}
void store_cour(course * p_head)
{
FILE *fp;
if ((fp = fopen(COUR_F, "w")) == NULL)//以只寫方式打開文件，覆蓋以前數據
{
printf("\t***COUR_F missed,please quit the system and check for that!\n\n");
exit(0);
}
while (p_head != NULL)//將鏈表所有節點寫入緩沖區
{
fwrite(p_head, sizeof(course), 1, fp);//將鏈表一個節點寫入緩沖區
p_head = p_head->next; //p_head指向下一個節點
}
fclose(fp);//保存文件，清空緩沖區
}
student * locate_end(student * head)
{
student* end = head;
while (head != NULL)
{
end = head;
head = head->next;
}
return end;
}
course* locate_end(course * head)
{
course* end = head;
while (head != NULL)
{
end = head;
head = head->next;
}
return end;
}
void help()
{
int input = -1;
while (1)
{
printf("\n\t\t*****請選擇需要的幫助類型 [1]學生幫助 [2]管理員幫助 [3]版權信息 [0]返回主頁:");
scanf("%d", &input);
while (getchar() != '\n');
if (input == 0)
break;
else if (input == 1)//學生使用說明
{
printf("\n\t\t--------------------------------學生使用說明---------------------------------------\n");
printf("\t\t密碼：初始密碼為學號，忘記密碼請聯系管理員\n");
printf("\t\t\n");
printf("\t\t\n");
printf("\t\t\n");
printf("\t\t-----------------------------------------------------------------------------------\n\n");
}
else if (input == 2)//管理員使用說明
{
printf("\n\t\t-------------------------------管理員使用說明---------------------------------------\n");
printf("\t\t密碼:初始密碼為10個0，首次使用務必修改密碼！\n");
printf("\t\t警告：該軟件的文件夾必須放在C盤根目錄下，否則不能使用！\n");
printf("\t\t提示：請定時備份數據，防止數據丟失!\n");
printf("\t\t提示：學生學號和課程編號只能是數字!\n");
printf("\t\t------------------------------------------------------------------------------------\n\n");
}
else if (input == 3)//版權信息
{
printf("\n\t\t------------------------------版權信息-------------------------------------------------\n");
printf("\t\t軟件名稱：學生及課程信息管理系統\n");
printf("\t\t開發人員：焦智洋、文詩波、韓旭\n");
printf("\t\t版本：beta1.0\n");
printf("\t\t版權保護：版權所有，翻版必究\n");
printf("\t\t---------------------------------------------------------------------------------------\n\n");
}
else
printf("\n\t\t#####輸入錯誤，請重新輸入！#####\n");
}
}
int link_count(student * head)
{
int count = 0;
while (head != NULL)
{
count++;
head = head->next;
}
return count;
}
int link_count(course * head)
{
int count = 0;
while (head != NULL)
{
count++;
head = head->next;
}
return count;
}
int judge_ascii_num(char in[])
{
int i = 0;
while (in[i]!='\0')
{
if ((in[i] < '0') || (in[i] > '9'))
return 0;
i++;
}
return 1;
}
int judge_num(char *ch)
{
int sum = 0, len = strlen(ch);
for (int i = 0; i < len; i++)
{
if (ch[i] >= '0'&&ch[i] <= '9')
sum++;
}
if (sum == len)
return 1;
else
return 0;
}
int input_num()
{
int num;
char buf[MAXN];
while ((scanf("%s", buf) == 0) || (judge_num(buf) == 0))
{
while (getchar() != '\n');
printf("\n\t\t###輸入錯誤，請重新輸入:");
}
num = atoi(buf);
return num;
}
double input_double()
{
double temp = -1.00;
while (1)
{
scanf("%lf", &temp);
while (getchar() != '\n');
if (temp < 0)
printf("\n\t\t#####輸入錯誤，請重新輸入:");
else
break;
}
return temp;
}
double judge_input_dou()
{
printf("\n\t\t是否修改該項？[1]修改 [0]不修改:");
int judge = 0;
scanf("%d", &judge);
while (getchar() != '\n');
if (judge == 1)
{
while (1)
{
printf("\n\t\t請輸入修改后的內容：");
double in = 0.00;
scanf("%lf", &in);
while (getchar() != '\n');
if (in<=0)
printf("\n\t\t#####輸入錯誤，請重新輸入！######");
else
{
return in;
break;
}
}
}
else
return -1.0;
}
course *coursenamefind_char(course* head, char tar[])//根據課程名稱查找課程節點，返回前一節點地址
{
course *p, *q;
p = head;
q = NULL;
while (p != NULL)
{
if (strcmp(tar, p->name) == 0)
return q;
q = p;
p = p->next;
}
return q;
}
course *coursenumfind_num(course* head, char tar[])//根據課程編號查找課程
{course *p, *q;
p = head;
q = NULL;
while (p != NULL)
{
if (strcmp(tar, p->num)==0)
return q;
q = p;
p = p->next;
}
return q;
}
student *studentnamefind_char(student *head, char tar[])
{
student *p, *q;
p = head;
q = NULL;
while (p != NULL)
{
if (strcmp(tar, p->name) == 0)
return q;
q = p;
p = p->next;
}
return q;
}
student* studentnamefind_num(student *head, char tar[])
{
student *p, *q;
p = head;
q = NULL;
while (p != NULL)
{
if (strcmp(tar, p->num) == 0)
return q;
q = p;
p = p->next;
}
return q;
}
int input_limit(int n)
{
int m;
while (1)
{
m = input_num();
if (m > 0 && m <= n)
break;
printf("\n\t\t####無此選項，請重新輸入!####\n");
}
return m;
}
int input_limit0(int n)
{
int m;
while (1)
{
m = input_num();
if (m >= 0 && m <= n)
break;
printf("\n\t\t####無此選項，請重新輸入!####\n");
}
return m;
}
void student_showone(student *p)
{
printf("\n\t\t------------------------------------------------------");
printf("\n\t\t學號：%s", p->num);
printf("\n\t\t姓名：%s", p->name);
printf("\n\t\t學院與班級：%s", p->sch_cla);
printf("\n\t\t密碼：%s", p->password);
if (p->course_sum == 0)
printf("\n\t\t該學生無已選課程!\n");
else
{
printf("\n\t\t已選課程:\n");
for (int i = 0; i < p->course_sum; i++)
printf("\t\t\t[%d]:%s\n", i + 1, p->course[i]);
}
printf("\t\t選課總數：%d", p->course_sum);
printf("\n\t\t已選課程總學分：%lf", p->score_sel);
printf("\n\t\t已得學分統計：%lf", p->score_all);
printf("\n\t\t------------------------------------------------------");
}
void student_showall(student *head)
{
student *p;
p = head;
while (p != NULL)
{
student_showone(p);
p = p->next;
}
}
void course_showone(course *ad)
{
if (ad == NULL)
printf("\t\t無課程\n");
else
{
printf("\n\t\t------------------------------------------------------");
printf("\n\t\t課程名稱：%s\n", ad->name);
printf("\n\t\t課程編號：%s\n", ad->num);
printf("\t\t課程性質：%s\n", ad->nature);
printf("\t\t開課學期：%s\n", ad->term);
printf("\t\t總學時:%lf\n", ad->time_all);
printf("\t\t授課學時：%lf\n", ad->time_teach);
printf("\t\t實驗或上機學時：%lf\n", ad->time_exp);
printf("\t\t學分：%lf\n\n", ad->score);
printf("\n\t\t------------------------------------------------------");
}
}
void course_showall(course *head)
{
course *p;
p = head;
while (p != NULL)
{
course_showone(p);
p = p->next;
}
return;
}
void cour_nat_te(course* head)
{
while (1)
{
printf("\n\t\t請輸入要查找課程的性質，返回上級菜單請輸入0000：");
char input1[50];
scanf("%s", input1);
while (getchar() != '\n');
if (strcmp(input1, "0000") == 0)
break;
printf("\n\t\t請輸入要查找課程的開課學期:");
char input2[50];
scanf("%s", input2);
while (getchar() != '\n');
int count = 0;
while (head != NULL)
{
if ((strcmp(input1, head->nature) == 0) && (strcmp(input2, head->term) == 0))
{
course_showone(head);
count++;
}
head = head->next;
}
if (count == 0)
printf("\n\t\t#####沒有符合查找條件的課程！#####\n");
}
}
void search_course(course *head)
{
int flag;
while (true)
{
flag = 0;
printf("\n\t\t請輸入查找條件 [1]課程編號 [2]課程名稱 [3]課程性質\n\t\t[4]開課學期 [5]課程性質與開課學期 [0]返回上級菜單:");
scanf("%d", &flag);
while (getchar() != '\n');
switch (flag)
{
case(1):coursenumfindtip(head); break;
case(2):coursenamefindtip(head); break;
case(3):courseshow_nature(head); break;
case(4):courseshow_term(head); break;
case(5):cour_nat_te(head); break;
case(0):break;
default:
printf("\n\t\t#####輸入錯誤，請重新輸入!#####");
}
if (flag == 0)
break;
}
}
manager.cpp
#include<stdio.h>
#include<string.h>
#include"all.h"
#include<stdlib.h>
#include<malloc.h>
#include<ctype.h>
extern student* stu_head;
extern course* cour_head;
extern course *cour_tail;
extern student *stu_tail; // 這四個指針變量在main.cpp中已經聲明為全局變量
int man_login()
{
FILE *fp;
if ((fp = fopen(MAN_F, "r")) == NULL)
{
printf("\t\t#######無法找到文件：MAN_F######\n");
return -1;
}
char key[11];
fread(key, 10, 1, fp);
key[10] = '\0';
fclose(fp);
char input[1000];
printf("\t\t*******請輸入管理員密碼:");
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, key) == 0)
return 1;
else
return 0;
}
int man_menu()
{
printf("\n\t\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~管理員菜單~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
printf("\n\t\t---[1]:添加學生");
printf("\n\t\t---[2]:刪除學生");
printf("\n\t\t---[3]:修改學生信息");
printf("\n\t\t---[4]:查找學生信息\n");
printf("\n\t\t---[5]:添加課程");
printf("\n\t\t---[6]:刪除課程");
printf("\n\t\t---[7]:修改課程信息");
printf("\n\t\t---[8]:查找課程信息\n");
printf("\n\t\t---[9]:打印所有課程/學生信息");
printf("\n\t\t---[10]:修改管理員密碼");
printf("\n\t\t---[11]:數據備份與恢復");
printf("\n\t\t---[0]:注銷\n");
printf("\n\t\t----請從<0-10>中選擇操作類型:");
int n = input_limit0(11);
return n;
}
void student_add(student *head) //增加學生的函數
{
while (1)
{
char input[50];
while (1)
{
printf("\n\t\t請輸入要添加學生的學號(數字)，返回上級菜單請輸入0000：");
scanf("%s", input);
while (getchar() != '\n');
if (judge_ascii_num(input) == 1)
break;
else
printf("\n\t\t####輸入錯誤！#####");
}
if (strcmp(input, "0000") == 0)
break;
if (studentnamefind_num(stu_head, input) != stu_tail)
{
printf("\t\t###已存在該學生,請重新輸入!####\n");
continue;
}
/*初始化學生信息*/
student* p = (student *)malloc(sizeof(student));
strcpy(p->num, input);
printf("\t\t請輸入學生姓名:");
scanf("%s", p->name);
while (getchar() != '\n');
printf("\t\t請輸入學生學院和班級(用--隔開):");
scanf("%s", p->sch_cla);
while (getchar() != '\n');
printf("\t\t請輸入當前該學生總學分:");
p->score_all = input_double();
p->course_sum = 0;
p->score_sel = 0.0;
strcpy(p->password, p->num);
if (stu_head == NULL)//當前鏈表中沒有節點
{
p->next = NULL;
stu_head = p;
stu_tail = p;
}
else
{
if (strcmp(p->num, stu_head->num) < 0)//新增節點的標號比頭節點還小
{
p->next = stu_head;
stu_head = p;
}
else if (strcmp(p->num, stu_tail->num) > 0)//新增節點的標號比尾節點還大
{
p->next = NULL;
stu_tail->next = p;
stu_tail = p;
}
else//新增節點的標號在頭節點和尾節點之間
{
student* temp = stu_head;
while (temp != stu_tail)
{
if (strcmp(p->num, temp->num) > 0)
{
p->next = temp->next;
temp->next = p;
break;
}
}
}
}
printf("\n\t\t學生信息錄入成功!\n");
}
store_stu(stu_head);
}
void student_delete(student *head)
{
while (true)
{
printf("\n\t\t請輸入要刪除學生的學號或姓名,取消刪除請輸入0000:");
char input[50];
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
student *p;
if ((input[0] >= 48) && (input[0] <= 57))
p = studentnamefind_num(stu_head, input);
else
p = studentnamefind_char(stu_head, input);
if (p == stu_tail)//沒有該學生
{
printf("\n\t\t####沒有該學生信息!#####");
continue;
}
printf("\n\t\t確定刪除%s？[1]是 [0]否:", input);
int in = 0;
scanf("%d", &in);
while (getchar() != '\n');
if (in == 1)
{
if (p == NULL)//鏈表頭節點
{
if (stu_head->next == NULL)
{
stu_tail = NULL;
}
student* temp = stu_head;
stu_head = stu_head->next;
free(temp);
temp = NULL;
}
else if (p->next == stu_tail)//鏈表尾節點
{
p->next = NULL;
free(stu_tail);
stu_tail = p;
}
else//鏈表中間節點
{
student* delete_point = p->next;
p->next = delete_point->next;
free(delete_point);
delete_point = NULL;
}
printf("\n\t\t已經刪除該學生的信息！\n");
}
else
printf("\n\t\t####未刪除該學生的信息!####\n");
}
store_stu(stu_head);
}
void student_modify(student *head)
{
char input[100];
student* find = NULL;
while (1)
{
printf("\t\t請輸入要修改學生的學號或姓名,取消修改請輸入0000:");
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
if ((input[0] >= 48) && (input[0] <= 57))//按學號查找
find = studentnamefind_num(head, input);
else//按姓名查找
find = studentnamefind_char(head, input);
if (find == stu_tail)
{
printf("\n\t\t####你所查找的學生不存在！");
continue;
}
else
{
char temp[50];
if (find == NULL)
find = head;
else
find = find->next;
printf("\n\t\t請分別輸入需要修改的內容，若某一項不需要修改請輸入0");
printf("\n\t\t原姓名:%s 修改后的姓名：", find->name);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->name, temp);
printf("\t\t原學院和班級:%s 修改后的學院和班級(中間用--隔開)：", find->sch_cla);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->sch_cla, temp);
printf("\t\t原密碼:%s 修改后的密碼:", find->password);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->password, temp);
printf("\t\t原總學分:%lf (增加學分請使用+,減少學分請使用-,例如“-10” “+10”):", find->score_all);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
{
int change = (int)temp[0];
temp[0] = '0';
double number = atof(temp);
if (change == 43)
find->score_all += number;
else if (change == 45)
find->score_all -= number;
}
printf("\t\t修改完成！\n\n");
}
}
store_stu(stu_head);
}
void course_add(course *head)
{
while (1)
{
char input[50];
while (1)
{
printf("\n\t\t請輸入要添加課程的編號，返回上一級菜單請輸入0000：");
scanf("%s", input);
while (getchar() != '\n');
if (judge_ascii_num(input) == 1)
break;
else
printf("\n\t\t#####輸入錯誤！####");
}
if (strcmp(input, "0000") == 0)
break;
if (coursenumfind_num(cour_head, input) != cour_tail)
{
printf("\t\t###已存在該課程,請重新輸入!####\n");
continue;
}
course* p = (course*)malloc(sizeof(course));
/*初始化課程信息*/
strcpy(p->num, input);
printf("\n\t\t請輸入課程名稱：");
scanf("%s", p->name);
while (getchar() != '\n');
printf("\n\t\t請輸入課程性質:");
scanf("%s", p->nature);
while (getchar() != '\n');
printf("\n\t\t請輸入課程總學時:");
p->time_all = input_double();
printf("\n\t\t請輸入課程授課學時:");
p->time_teach = input_double();
printf("\n\t\t請輸入課程實驗或上機學時:");
p->time_exp = input_double();
printf("\n\t\t請輸入課程最大容納人數:");
p->stu_max = input_num();
printf("\n\t\t請輸入課程學分:");
p->score = input_double();
printf("\n\t\t請輸入課程開課學期:");
scanf("%s", p->term);
while (getchar() != '\n');
p->stu_sum = 0;
if (cour_head == NULL)//鏈表中沒有節點
{
p->next = NULL;
cour_head = p;
cour_tail = p;
}
else
{
if (strcmp(p->num, cour_head->num) < 0)//新增節點的標號比頭節點還小
{
p->next = cour_head;
cour_head = p;
}
else if (strcmp(p->num, cour_tail->num) > 0)//新增節點的標號比尾節點還大
{
p->next = NULL;
cour_tail->next = p;
cour_tail = p;
}
else//新增節點的標號在頭節點和尾節點之間
{
course* temp = cour_head;
while (temp != cour_tail)
{
if (strcmp(p->num, temp->num) > 0)
{
p->next = temp->next;
temp->next = p;
break;
}
}
}
}
printf("\n\t\t課程信息錄入成功!\n");
}
store_cour(cour_head);
}
void course_delete(course *head)
{
course *p;
char input[50];
while (true)
{
printf("\n\t\t請輸入要刪除課程的編號或名稱,取消刪除請輸入0000:");
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
if ((input[0] >= 48) && (input[0] <= 57))
p = coursenumfind_num(head, input);
else
p = coursenamefind_char(head, input);
if (p == cour_tail)//沒有該課程
{
printf("\n\t\t####沒有該課程信息!####"); continue;
}
printf("\n\t\t確定刪除%s？[1]是 [0]否:", input);
int in = 0;
scanf("%d", &in);
while (getchar() != '\n');
if (in == 1)
{
if (p == NULL)//鏈表頭節點
{
if (head->next == NULL)
cour_tail = NULL;
course* temp = head;
head = head->next;
cour_head = head;
free(temp);
}
else if (p->next == cour_tail)//鏈表尾節點
{
free(cour_tail);
p->next = NULL;
cour_tail = p;
}
else//鏈表中間節點
{
course* delete_point = p->next;
p = (p->next)->next;
free(delete_point);
}
printf("\n\t\t%s已經刪除！\n", input);
}
else
printf("\n\t\t#####未刪除課程%s的信息!######\n", input);
}
store_cour(cour_head);
}
void course_modify(course *head)
{
char input[100];
course* find = NULL;
while (1)
{
printf("\t\t請輸入要修改課程的編號號或名稱,取消修改請輸入0000:");
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
if ((input[0] >= 48) && (input[0] <= 57))//按學號查找
find = coursenumfind_num(head, input);
else//按姓名查找
find = coursenamefind_char(head, input);
if (find == cour_tail)
{
printf("\n\t\t####你所查找的課程不存在！####");
continue;
}
else
{
char temp[50];
if (find == NULL)
find = head;
else
find = find->next;
printf("\n\t\t請分別輸入需要修改的內容，若某一項不需要修改請輸入0");
printf("\n\t\t原名稱:%s 修改后的名稱：", find->name);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->name, temp);
printf("\t\t原性質:%s 修改后的性質：", find->nature);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->nature, temp);
printf("\t\t原開課學期:%s 修改后的開課學期：", find->term);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
strcpy(find->term, temp);
//int time_all; //總學時
//int time_teach; //授課學時
//int time_exp; //實驗或上機學時
//int score; //該課程學分
//int stu_max; //能夠容納的學生總數
printf("\t\t原總學時:%lf 修改后的總學時：", find->time_all);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
find->time_all = atof(temp);
printf("\t\t原授課學時:%lf 修改后的授課學時：", find->time_teach);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
find->time_teach = atof(temp);
printf("\t\t原實驗或上機學時:%lf 修改后的實驗或上機學時：", find->time_exp);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
find->time_exp = atof(temp);
printf("\t\t原課程學分:%lf 修改后的課程學分：", find->score);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
find->score = atof(temp);
printf("\t\t原能容納學生總數:%d 修改后的能容納學生總數：", find->stu_max);
scanf("%s", &temp);
while (getchar() != '\n');
if (strcmp(temp, "0") != 0)
find->stu_max = atoi(temp);
printf("\t\t修改完成！\n\n");
}
}
store_cour(cour_head);
}
void print_all()
{
while (1)
{
printf("\n\t\t選擇操作類型: [1]打印所有學生信息 [2]打印所有課程信息 [0]返回主菜單:");
int input = 0;
scanf("%d", &input);
while (getchar() != '\n');
if (input == 1)
{
printf("\n\t\t學生總數：%d", link_count(stu_head));
student_showall(stu_head);
}
else if (input == 2)
{
printf("\n\t\t課程總數：%d\n", link_count(cour_head));
courseshowall_man(cour_head);
}
else if (input == 0)
break;
else
printf("\n\t\t####輸入錯誤！請重新輸入!#####\n");
}
}
void man_modifyKey()
{
printf("\t\t******請輸入原密碼(10位):");
char input[20];
scanf("%s", input);
while (getchar() != '\n');
FILE *fp;
if ((fp = fopen(MAN_F, "r")) == NULL)
{
printf("\t\t-------- 無法打開文件:MAN_F\n");
exit(0);
}
char keyOld[11];
fread(keyOld, 10, 1, fp);
keyOld[10] = '\0';
if (strcmp(keyOld, input) == 0)//修改
{
fclose(fp);
char new1[100];
char new2[100];
while (1)
{
printf("\t\t*******請輸入新密碼（10位）:");
scanf("%s", new1);
while (getchar() != '\n');
printf("\t\t******請再次確認新密碼（10位）:");
scanf("%s", new2);
while (getchar() != '\n');
if (keyexam(new1, new2) == 1)
{
fp = fopen(MAN_F, "w");
fwrite(new1, 10, 1, fp);
fclose(fp);
printf("\n\t\t------密碼修改成功!\n");
break;
}
else
printf("\t\t####前后密碼不一致，請重新輸入！####\n");
}
}
else
{
fclose(fp);
printf("\t\t####原密碼輸入錯誤，請重新選擇操作類型####\n");
}
}
void man_backups_recover()
{
printf("\t\t*****[1]數據備份 [2]數據恢復 [3]取消\n");
printf("\t\t*****選擇操作類型:");
int input = 0;
scanf("%d", &input);
while (getchar() != '\n');
if (input == 1)
{
FILE *fp_source;
FILE *fp_destination;
{//課程信息備份
if ((fp_source = fopen(COUR_F, "r")) == NULL)
{
printf("\t\t##課程數據備份失敗：無法找到COUR_F文件！##\n");
exit(0);
}
fp_destination = fopen(COUR_F_BACKUP, "w");
char temp;
int count = 0;
while (!feof(fp_source))
{
if (fread(&temp, 1, 1, fp_source))
count++;
}
rewind(fp_source);
for (int i = 0; i < count; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
}
{//學生信息備份
if ((fp_source = fopen(STU_F, "r")) == NULL)
{
printf("\t\t##學生數據備份失敗：無法找到STU_F文件！##\n");
exit(0);
}
fp_destination = fopen(STU_F_BACKUP, "w");
char temp;
int count = 0;
while (!feof(fp_source))
{
if (fread(&temp, 1, 1, fp_source))
count++;
}
rewind(fp_source);
for (int i = 0; i < count; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
}
{//管理員信息備份
if ((fp_source = fopen(MAN_F, "r")) == NULL)
{
printf("\t\t##管理員數據備份失敗：無法找到MAN_F文件！##\n");
exit(0);
}
fp_destination = fopen(MAN_F_BACKUP, "w");
char temp;
for (int i = 0; i < 10; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
}
printf("\n\t\t所有數據已經備份完畢！備份目錄為C:\ stu_cour_info_system\backup\n");
}
else if (input == 2)
{
printf("\t\t選擇恢復類型:[1]課程數據 [2]學生數據 [3]管理員數據:");
int in = 0;
scanf("%d", &in);
while (getchar() != '\n');
FILE *fp_source;
FILE *fp_destination;
if (in == 1)//course information recover
{ //課程信息恢復
if ((fp_source = fopen(COUR_F_BACKUP, "r")) == NULL)
{
printf("\t\t###課程信息恢復失敗！未能找到C:\\stu_cour_info_system\\backup\\course_back.txt###\n");
exit(0);
}
fp_destination = fopen(COUR_F, "w");
char temp;
int count = 0;
while (!feof(fp_source))
{
if (fread(&temp, 1, 1, fp_source))
count++;
}
rewind(fp_source);
for (int i = 0; i < count; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
printf("\n\t\t課程信息恢復成功！\n");
cour_head = load_cour();
cour_tail = locate_end(cour_head);
}
else if (in == 2)//student information recover
{ //學生信息恢復
if ((fp_source = fopen(STU_F_BACKUP, "r")) == NULL)
{
printf("\t\t###學生信息恢復失敗！未能找到C:\\stu_cour_info_system\\backup\\student_back!###\n");
exit(0);
}
fp_destination = fopen(STU_F, "w");
char temp;
int count = 0;
while (!feof(fp_source))
{
if (fread(&temp, 1, 1, fp_source))
count++;
}
rewind(fp_source);
for (int i = 0; i < count; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
printf("\n\t\t學生數據恢復成功！\n");
stu_head = load_stu();
stu_tail = locate_end(stu_head);
}
else if (in == 3)//manager information recover
{
//恢復管理員數據
if ((fp_source = fopen(MAN_F_BACKUP, "r")) == NULL)
{
printf("\t\t###管理員數據恢復失敗！未能找到C:\\stu_cour_info_system\\backup\\course_back\n");
exit(0);
}
fp_destination = fopen(MAN_F, "w");
char temp;
for (int i = 0; i < 10; i++)
{
fread(&temp, 1, 1, fp_source);
fwrite(&temp, 1, 1, fp_destination);
}
fclose(fp_destination);
fclose(fp_source);
printf("\n\t\t管理員數據恢復成功！\n");
}
else
printf("\t\t###輸入錯誤！###\n");
}
else if (input == 3)
;
else
printf("\t\t###輸入錯誤，請重新輸入!####\n");
}
void man_search_stu(student *head)
{
while (1)
{
printf("\n\t\t請輸入學號或姓名進行查找，返回上級菜單請輸入0000：");
char input[50];
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
student* p_stu;
if ((input[0] >= 48) && (input[0] <= 57))
p_stu = studentnamefind_num(head, input);
else
p_stu = studentnamefind_char(head, input);
if (p_stu == stu_tail)
{
printf("\n\t\t#####沒有該學生的信息，請重新輸入！#####/n");
continue;
}
if (p_stu == NULL)
p_stu = head;
else
p_stu = p_stu->next;
printf("\n\t\t該學生信息如下：");
student_showone(p_stu);
}
}
void courseshowone_man(course *ad)
{
if (ad == NULL)
printf("無課程");
else
{
printf("\n\t\t------------------------------------------------------");
printf("\n\t\t課程編號：%s\n", ad->num);
printf("\t\t課程名稱：%s\n", ad->name);
printf("\t\t課程性質：%s\n", ad->nature);
printf("\t\t開課學期：%s\n", ad->term);
printf("\t\t總學時:%lf\n", ad->time_all);
printf("\t\t授課學時：%lf\n", ad->time_teach);
printf("\t\t實驗或上機學時：%lf\n", ad->time_exp);
printf("\t\t學分：%lf\n", ad->score);
printf("\t\t總容納學生人數：%d\n", ad->stu_max);
printf("\t\t已選學生人數：%d\n", ad->stu_sum);
printf("\t\t已選學生：\n");
if (ad->stu_sum == 0)
printf("\t\t沒有人選該課程\n");
else
for (int i = 0; i <ad->stu_sum; i++)
{
if (i % 5 == 0)
printf("\t\t");
student* temp = studentnamefind_num(stu_head, ad->stu[i]);
if (temp == NULL)
temp = stu_head;
else
temp = temp->next;
printf("[%d] %s", i + 1, temp->name);
if (i > 0 && i % 5 == 0)
printf("\n");
}
printf("\n\t\t------------------------------------------------------");
}
}
void courseshowall_man(course *head)
{
course *p;
p = head;
if (p == NULL)
{
printf("\t\t無課程\n");
return;
}
while (p != NULL)
{
courseshowone_man(p);
p = p->next;
}
}
studetn.cpp
#include<stdio.h>
#include<string.h>
#include"all.h"
#include<stdlib.h>
#include<malloc.h>
#include<ctype.h>
extern student* stu_head;
extern course* cour_head;
extern course *cour_tail;
extern student *stu_tail;// 這四個指針變量在main.cpp中已經聲明為全局變量
student* stu_login(student* head)
{
student* copy_head = head;
char input[100];
printf("\t\t*******請輸入學號:");
scanf("%s", input);
while (getchar() != '\n');
student* temp;
temp = studentnamefind_num(head, input);
if (temp == NULL)//the first student
return copy_head;
else if ((temp != NULL) && (temp->next == NULL))//no such a student
return NULL;
else
return temp->next;
}
int stu_menu()
{
printf("\n\t\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~學生菜單~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
printf("\n\t\t---[1]:打印課程信息");
printf("\n\t\t---[2]:查找課程信息");
printf("\n\t\t---[3]:選擇新的課程");
printf("\n\t\t---[4]:刪除已選課程");
printf("\n\t\t---[5]:查看個人信息");
printf("\n\t\t---[6]:修改登陸密碼");
printf("\n\t\t---[0]:注銷");
printf("\n\n\t\t---請從<0-6>中選擇操作類型:");
int n = input_limit0(6);
return n;
}
void courseshow_nature(course *head)
{
course *p;
char ad[MAXN];
while (true)
{
int flag = 0, sum = 0;
p = head;
printf("\t\t請輸入要查找課程的性質,取消查找請輸入0000:");
scanf("%s", ad);
while (getchar() != '\n');
if (strcmp(ad, "0000") == 0)
break;
while (p != NULL)
{
if (strcmp(ad, p->nature) == 0)
{
course_showone(p);
flag = 1;
sum++;
}
p = p->next;
}
if (flag == 0)
printf("\n\t\t沒有該課程！####");
}
return;
}
void courseshow_term(course *head)
{
course *p;
char ad[MAXN];
while (true)
{
int flag = 0, sum = 0;
p = head;
printf("\t\t請輸入要查找課程的開課學期,取消查找請輸入0000:");
scanf("%s", ad);
while (getchar() != '\n');
if (strcmp(ad, "0000") == 0)
break;
while (p != NULL)
{
if (strcmp(ad, p->term) == 0)
{
course_showone(p);
flag = 1;
sum++;
}
p = p->next;
}
if (flag == 0)
printf("\n\t\t#####沒有該課程!#####");
}
return;
}
void coursechoose( course* head, student* stu)//選課函數
{
if (stu->score_sel <stu->score_all )
printf("\n\t\t你的總學分少于%lf,趕快去選課吧！\n", stu->score_all);
while (1)
{
printf("\n\t\t請輸入課程的編號或名稱進行選課，取消選課請輸入0000:");
char input[50];
scanf("%s", input);
while(getchar()!='\n');
if (strcmp(input, "0000")==0)
break;
course* find = NULL;
if ((input[0] >= 48) && (input[0] <= 57))
find = coursenumfind_num(head, input);
else
find = coursenamefind_char(head, input);
if (find == cour_tail)
{
printf("\n\t\t#####該課程不存在!請重新輸入#####\n");
continue;
}
else if (find == NULL)
find = head;
else
find = find->next;
if (find->stu_sum == find->stu_max)
printf("\n\t\t####該課程人數已滿,無法選擇!#####\n");
else
{
int judge = 0;
for (int i = 0; i < stu->course_sum; i++)
{
if (strcmp(stu->course[i], find->num)==0)
{judge = 1; break;}
}
if (judge == 1)
{
printf("\n\t\t####該課程已經選擇過了!####\n");
continue;
}
else
{
stu->course_sum++;
strcpy(stu->course[stu->course_sum - 1], find->num);
stu->score_sel += find->score;
find->stu_sum++;
strcpy(find->stu[find->stu_sum - 1], stu->num);
printf("\n\t\t該課程選擇成功!\n");
}
}
}
store_cour(cour_head);
store_stu(stu_head);
}
void coursenumfindtip(course *head)
{
char buf[MAXN];
course *result;
while (true)
{
printf("\t\t請輸入要查找課程的編號,取消查找請輸入0000:");
scanf("%s", buf);
while (getchar() != '\n');
if (strcmp(buf, "0000") == 0)
break;
result = coursenumfind_num(head, buf);
if (result != cour_tail)
{
if (result == NULL)
result = head;
else
result = result->next;
course_showone(result);
}
else
printf("\t\t#####沒有該課程！#####\n");
}
}
void coursenamefindtip(course *head)
{
char buf[MAXN];
course *result;
while (1)
{
printf("\t\t請輸入要查找課程的名稱,取消查找請輸入0000:");
scanf("%s", buf);
while (getchar() != '\n');
if (strcmp(buf, "0000") == 0)
break;
result = coursenamefind_char(head, buf);
if (result != cour_tail)
{
if (result == NULL)
result = head;
else
result = result->next;
course_showone(result);
}
else
printf("\t\t#####無所查找的課程!#####\n");
}
}
void stu_dele_cour( course * head, student * stu)
{
while (1)
{
printf("\n\t\t請輸入需要刪除課程的編號,返回上級菜單請輸入0000:");
char input[50];
scanf("%s", input);
while (getchar() != '\n');
if (strcmp(input, "0000") == 0)
break;
int i = 0, result = -1;
/*刪除該學生記錄中選課的信息*/
for (; i < stu->course_sum; i++)
{
if (strcmp(input, stu->course[i]) == 0)
{ result = i; break; }
}
if (result == -1)
{printf("\n\t\t####你沒有選擇這門課程！請重新輸入!");continue;}
strcpy(stu->course[result], stu->course[stu->course_sum - 1]);
stu->course_sum--;
course* find= coursenumfind_num(head, input);
if (find == NULL)
find = head;
else
find =find->next;
/*刪除該課程記錄中學生的信息*/
i = 0, result = 0;
for (; i < find->stu_sum; i++)
{
if(strcmp(input,find->stu[i])==0)
{ result = i; break;}
}
strcpy(find->stu[result], find->stu[find->stu_sum - 1]);
find->stu_sum --;
printf("\n\t\t課程刪除成功!\n");
}
store_stu(stu_head);
store_cour(cour_head);
}
void stu_modifyKey(student* stu)
{
printf("\t\t******請輸入原密碼(8位):");
char input[20];
scanf("%s", input);
while (getchar() != '\n');
char keyOld[10];
strcpy(keyOld, stu->password);
if (keyexam(keyOld, input) == 1)//修改
{
char new1[100];
char new2[100];
while (1)
{
printf("\t\t*******請輸入新密碼（8位）:");
scanf("%s", new1);
while (getchar() != '\n');
printf("\t\t******請再次確認新密碼（8位）:");
scanf("%s", new2);
while (getchar() != '\n');
if (keyexam(new1, new2) == 1)
{
strcpy(stu->password, new1);
store_stu(stu_head);
printf("\n\t\t------密碼修改成功!\n");
break;
}
else
printf("\t\t####前后密碼不一致，請重新輸入！####\n");
}
}
else
printf("\t\t####原密碼輸入錯誤，請重新選擇操作類型####\n");
}
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