C小項目 —— 學生選課系統

#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 80typedef struct class{char name[CLASS_NAME]; /* 課程名稱 -- 唯一性 */uint32_t nature; /* 課程性質(必修或者選修) */uint32_t total_period; /* 課程總學時 */uint32_t teach_period; /* 授課學時 */uint32_t exper_period; /* 上機學時 */uint32_t start_time; /* 課程開始時間 */uint8_t score; /* 課程學分 */uint8_t is_exsit; /* 課程是否存在 */struct class *next;} class_t; // 課程結構體class_t *head = NULL; static uint32_t count = 1;void play(char *text, int display, int time, int nu) //動畫打印 {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("【學生選課系統】", "-");printf("\n\t|-----------------------------------|");printf("\n\t| [1]--增加課程 |");printf("\n\t| [2]--瀏覽課程 |");printf("\n\t| [3]--查詢課程 |");printf("\n\t| [4]--刪除課程 |");printf("\n\t| [5]--修改課程 |");printf("\n\t| [Q]--退出系統 |");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("是否繼續增加課程(y/n):");gets(tmp);if(strcmp(tmp, "n") == 0){break;}}point = (class_t *)malloc(sizeof(class_t));point->is_exsit = 0;printf("\n====請輸入第%d個選修課程信息====\n", count);printf("選擇課程名稱：");gets(point->name);q = head;while(NULL != q){if(strcmp(q->name, point->name) == 0){flag = 1;printf("課程名稱重復或者不合格，請重新輸入...\n");break;}q = q->next;}if(1 == flag){continue;}printf("課程性質:");printf("\n[B]--【必修】 [X]--【選修】");while(1){ch = getch();if(ch == 'b' || ch == 'B'){point->nature = 1;break;}if(ch == 'x' || ch == 'X'){point->nature = 2;break;}}printf("\n輸入總學時：(只接受數字！)");point->total_period = num_check();printf("\n輸入授課學時：(只接受數字！)");point->teach_period = num_check();printf("\n輸入上機學時：(只接受數字！)");point->exper_period = num_check();printf("\n輸入本課程學分：(只接受數字！)");point->score = num_check();printf("\n輸入開課學期：(只接受數字！)");point->start_time = num_check();point->is_exsit = 1;point->next = head;head = point;count++; }printf("信息錄入完畢，按任意鍵繼續……");getch(); }void display(void) {class_t *point = head;CLASS_CLS;titile("【查看課程】", "-");printf("\n名稱 \t性質\t總學時\t授課學時\t上機學時\t學分\t開課學期");while(NULL != point){if(1 == point->is_exsit){printf("\n%-14s ", point->name);if(1 == point->nature){printf("必修課");}else{printf("選修課");}printf(" %d時 %d時 %d時 %d分 %d時", point->total_period, point->teach_period, point->exper_period, point->score, point->start_time);}point = point->next;}getch(); } // 對照學生管理系統自行拓展 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 【選修課系統】");if(1 == movie){play("歡迎使用【選修課系統】", 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; }

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