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：
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#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;} |
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原文链接：https://blog.csdn.net/wqx521/article/details/58605698
