学生信息管理系统
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嘿嘿，大一的时候做的课设，是关于学生信息管理系统的，这个做得比较全，用c写的，可以升序，降序，文件的保存以及，学生信息的录入等等等等，放这儿仅供参考，有什么不对的地方，欢迎批评指出，哈哈！
#include <stdio.h>#include <stdlib.h>#include <string.h>#define YES 1#define NO 0typedef struct{int num;float math_score;float engl_score;float chin_score;float phy_score;float chem_score;double aver_score;double sum_score;char sex;}StudentDate;//学生基本信息typedef struct student{char name[20];//学生姓名StudentDate one;//学生其他信息int rank;//成绩排名struct student *next;}Student, *List;Student *createListHead(void);//创建链表的头void menu(void);//主菜单void sortList(Student *pHead);//排序链表void readListWithFile(Student *pHead, char *file_name);//从文件中读取数据，并保存在链表中int userChioce(Student *pHead);//用户选择int sortMenu(void);//打印选择菜单void addStudentInfo(Student *pHead);//向链表的末尾添加数据int scanMenu(void);//浏览菜单void findStudentInfo(Student *pHead);//查找学生信息void delStudentInfo(Student *pHead);//删除某一个学生信息void alterStudentInfo(Student *pHead);//修改学生信息void saveList(Student *pHead);//将链表保存在文件里void printList(Student *pHead);//打印链表void statisStudentInfo(Student *pHead);//查看学生信息int statisMenu(void);//查看菜单void inputData(Student *pHead,Student *node);//输入信息int adMenu(void);int main(void){Student *pHead;pHead = createListHead();//读取信息while (1){if (9 == userChioce(pHead)) //按9时退出系统{break;}}return 0;}void menu(void){system("CLS");//清屏printf("\n\n\n\t\t\t\t┌─────────────────┐\n");printf("\t\t\t\t│ 学生成绩统计系统 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 1 增加学生信息 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 2 删除学生信息 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 3 修改学生信息 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 4 查找学生信息 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 5 查看学生成绩 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 6 排序学生成绩 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 9 退出系统 │\n");printf("\t\t\t\t├─────────────────┤\n");printf("\t\t\t\t│ 制作人：xxxxxxxxxx \n");printf("\t\t\t\t└─────────────────┘\n");}Student *createListHead(void){Student *pHead;pHead = (List)malloc(sizeof(Student));pHead->next = NULL;return pHead;}void readListWithFile(Student *pHead, char *file_name){FILE *fp;Student *p1, *p2;int count, rank = 0;StudentDate txt;char stu_name[20];fp = fopen(file_name, "r");if (fp == NULL){fp = fopen(file_name, "w");fclose(fp);return;}fseek(fp, 0L, 2);count = ftell(fp);p1 = pHead;fp = fopen(file_name, "r");while (!feof(fp)){p2 = (List)malloc(sizeof(Student));fscanf(fp, "%d%s %c%f%f%f%f%f\n", &p2->one.num, p2->name, &p2->one.sex, &p2->one.chin_score,&p2->one.math_score, &p2->one.engl_score, &p2->one.chem_score, &p2->one.phy_score);p2->one.sum_score = (double)(p2->one.chin_score + p2->one.chin_score + p2->one.engl_score +p2->one.chem_score + p2->one.phy_score);p2->one.aver_score = p2->one.sum_score / 5;p2->next = NULL;p1->next = p2;p1 = p2;if (ftell(fp) == count){break;}}//将链表排序，并初始化排名for (p1 = pHead->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.sum_score > p1->one.sum_score){txt = p2->one;strcpy(stu_name, p2->name);p2->one = p1->one;strcpy(p2->name, p1->name);p1->one = txt;strcpy(p1->name, stu_name);}}p1->rank = ++rank;}fclose(fp);}void sortList(Student *pHead){Student *p1, *p2;StudentDate txt;char stu_name[20];int bum, count = 0, rank;system("title 学生成绩统计系统-排序");//将标题栏命名为“学生成绩统计系统”bum = sortMenu();if (bum == 1) //按成绩升序{for (p1 = pHead->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.sum_score < p1->one.sum_score){txt = p2->one;rank = p2->rank;strcpy(stu_name, p2->name);p2->one = p1->one;p2->rank = p1->rank;strcpy(p2->name, p1->name);p1->one = txt;p1->rank = rank;strcpy(p1->name, stu_name);}}}}else if (bum == 2)//按学号升序{for (p1 = pHead->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.num < p1->one.num){txt = p2->one;rank = p2->rank;strcpy(stu_name, p2->name);p2->one = p1->one;p2->rank = p1->rank;strcpy(p2->name, p1->name);p1->one = txt;p1->rank = rank;strcpy(p1->name, stu_name);}}}} else if (bum == 3) //按成绩降序{for (p1 = pHead->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.sum_score > p1->one.sum_score){txt = p2->one;rank = p2->rank;strcpy(stu_name, p2->name);p2->one = p1->one;p2->rank = p1->rank;strcpy(p2->name, p1->name);p1->one = txt;p1->rank = rank;strcpy(p1->name, stu_name);}}}}else if (bum == 4)//按学号降序{for (p1 = pHead->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.num > p1->one.num){txt = p2->one;rank = p2->rank;strcpy(stu_name, p2->name);p2->one = p1->one;p2->rank = p1->rank;strcpy(p2->name, p1->name);p1->one = txt;p1->rank = rank;strcpy(p1->name, stu_name);}}}}else if(bum==5)return; else { printf("\n输入错误，请重新输入；"); bum = sortMenu(); }printList(pHead);printf("敲任意数回到主菜单");getch();}void printList(Student *pHead){pHead = pHead->next;system("CLS");printf("\n\n ┏━━━┳━━━━┳━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━┓");printf("\n ┃ 学号 ┃ 姓 名 ┃性别┃语 文┃高 数┃英 语┃C 语言┃大 物┃平均分┃总 分┃名次┃\n");while (pHead){printf(" ┣━━━╋━━━━╋━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━┫\n");printf(" ┃ %-5d┃ %-6s ┃ %c ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃ %-3d┃\n", pHead->one.num,pHead->name, pHead->one.sex, pHead->one.chin_score, pHead->one.math_score,pHead->one.engl_score, pHead->one.chem_score, pHead->one.phy_score, pHead->one.aver_score, pHead->one.sum_score, pHead->rank);pHead = pHead->next;}printf(" ┗━━━┻━━━━┻━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━┛\n");getch();}int userChioce(Student *pHead){int bum;system("title 学生成绩统计系统-主菜单");//将标题栏命名为“学生成绩统计系统”menu();printf("请按键选择: ");bum = (int)(getch() - '0');switch (bum){case 1:addStudentInfo(pHead);break;case 2:delStudentInfo(pHead);break;case 3:alterStudentInfo(pHead);break;case 4:findStudentInfo(pHead);break;case 5:statisStudentInfo(pHead);break;case 9:break;case 6:sortList(pHead);break;default:break;}return bum;}int sortMenu(void){int bum;system("CLS");printf("\n\n\n");printf("\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n");printf("\t\t┃ 以什么方式排序 ？ ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 1 按成绩升序 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 2 按学号升序 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 3 按成绩降序 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 4 按学号降序 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 5 返回主菜单 ┃\n");printf("\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n");printf("请按键选择：");bum = (int)(getch() - '0');system("CLS");return bum;}void addStudentInfo(Student *pHead){FILE *fp;Student *p1, *p2, *p3 = pHead;StudentDate txt;int judge = YES, rank = 0;char bum, stu_name[20];system("title 学生成绩统计系统-添加");//将标题栏命名为“学生成绩统计系统”fp = fopen("stud.txt", "a");while (pHead->next){pHead = pHead->next;}while (judge){p1 = (List)malloc(sizeof(Student));inputData(p3,p1);p1->next = NULL;pHead->next = p1;pHead = p1;fprintf(fp, "%d %s %c %.1f %.1f %.1f %.1f %.1f\n", p1->one.num, p1->name, p1->one.sex, p1->one.chin_score,p1->one.math_score, p1->one.engl_score, p1->one.chem_score, p1->one.phy_score);printf("是否继续添加？(Y/N)");bum = getch();if (bum == 'n' || bum == 'N'){break;}}//并交换排名for (p1 = p3->next; p1 != NULL; p1 = p1->next){for (p2 = p1->next; p2 != NULL; p2 = p2->next){if (p2->one.aver_score > p1->one.aver_score){txt = p2->one;strcpy(stu_name, p2->name);p2->one = p1->one;strcpy(p2->name, p1->name);p1->one = txt;strcpy(p1->name, stu_name);}}p1->rank = ++rank;}fclose(fp);printf("\n敲任意数回到主菜单");getch();}int scanMenu(void){int bum;system("CLS");printf("\n\n\n");printf("\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n");printf("\t\t┃ 以什么方式？ ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 1 按学生的学号 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 2 按学生的姓名 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 3 按学生的名次 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 4 返回主菜单 ┃\n");printf("\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n");printf("请按键选择：");bum = (int)(getch() - '0');system("CLS");return bum;}int adMenu(void){int bum;system("CLS");printf("\n\n\n");printf("\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n");printf("\t\t┃ 以什么方式？ ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 1 按学生的学号 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 2 按学生的姓名 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 3 返回主菜单 ┃\n");printf("\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n");printf("请按键选择：");bum = (int)(getch() - '0');system("CLS");return bum;}void findStudentInfo(Student *pHead){int bum, count = 0;int num;char student_name[20]; int student_rank;pHead = pHead->next;system("title 学生成绩统计系统-查找");//将标题栏命名为“学生成绩统计系统”bum = scanMenu();if (bum == 1){printf("请输入学生的学号：");scanf("%d", &num);while (pHead){if (pHead->one.num == num){if (count == 0){printf("\n\t\t\t已经查到！\n");printf("\n\n\n\n ┏━━━┳━━━━┳━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━┓");printf("\n ┃ 学号 ┃ 姓 名 ┃性别┃语 文┃高 数┃英 语┃C 语言┃大 物┃平均分┃总 分┃名次┃\n");count = 1;}printf(" ┣━━━╋━━━━╋━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━┫\n");printf(" ┃ %-5d┃ %-6s ┃ %c ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃ %-3d┃\n", pHead->one.num,pHead->name, pHead->one.sex, pHead->one.chin_score, pHead->one.math_score,pHead->one.engl_score, pHead->one.chem_score, pHead->one.phy_score, pHead->one.aver_score, pHead->one.sum_score, pHead->rank);break;}pHead = pHead->next;}if (pHead == NULL){printf("\n\t\t\t没有该学生记录！\n");}else{printf(" ┗━━━┻━━━━┻━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━┛\n");}}if (bum == 2){printf("请输入学生姓名：");scanf("%s", student_name);while (pHead){if (strcmp(student_name, pHead->name) == 0){if (count == 0){printf("\n\t\t\t已经查到！\n");printf("\n\n\n\n ┏━━━┳━━━━┳━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━┓");printf("\n ┃ 学号 ┃ 姓 名 ┃性别┃语 文┃高 数┃英 语┃C 语言┃大 物┃平均分┃总 分┃名次┃\n");count = 1;}printf(" ┣━━━╋━━━━╋━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━┫\n");printf(" ┃ %-5d┃ %-6s ┃ %c ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃ %-3d┃\n", pHead->one.num,pHead->name, pHead->one.sex, pHead->one.chin_score, pHead->one.math_score,pHead->one.engl_score, pHead->one.chem_score, pHead->one.phy_score, pHead->one.aver_score, pHead->one.sum_score, pHead->rank);}pHead = pHead->next;}if (count == 0){printf("\n\t\t\t没有该学生记录！");}else{printf(" ┗━━━┻━━━━┻━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━┛\n");}}if (bum == 3){printf("请输入学生名次：");scanf("%d",&student_rank);while (pHead){if (student_rank == pHead->rank){if (count == 0){printf("\n\t\t\t已经查到！\n");printf("\n\n\n\n ┏━━━┳━━━━┳━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━━┳━━┓");printf("\n ┃ 学号 ┃ 姓 名 ┃性别┃语 文┃高 数┃英 语┃C 语言┃大 物┃平均分┃总 分┃名次┃\n");count = 1;}printf(" ┣━━━╋━━━━╋━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━┫\n");printf(" ┃ %-5d┃ %-6s ┃ %c ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃ %-3d┃\n", pHead->one.num,pHead->name, pHead->one.sex, pHead->one.chin_score, pHead->one.math_score,pHead->one.engl_score, pHead->one.chem_score, pHead->one.phy_score, pHead->one.aver_score, pHead->one.sum_score, pHead->rank);}pHead = pHead->next;}if (count == 0){printf("\n\t\t\t没有该学生记录！");}else{printf(" ┗━━━┻━━━━┻━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━┛\n");}} if (bum == 4) { return; }printf("\n敲任意数回到主菜单");getch();}void delStudentInfo(Student *pHead){Student *p1, *p2 = pHead;int bum;int num;char student_name[20], c;system("title 学生成绩统计系统-删除");//将标题栏命名为“学生成绩统计系统”bum = adMenu();if (bum == 1){p1 = pHead->next;printf("\n\t\t\t请输入要删除学生的学号：");scanf("%d", &num);while (p1){if (p1->one.num == num){printf("\n\t\t\t删除成功，删除的学生学号为：%d", num);if (p1->next == NULL){pHead->next = NULL;break;}else{pHead->next = p1->next;free(p1);p1 = pHead->next;}}else if(p1->one.num != num){pHead = pHead->next;p1 = pHead->next;printf("\n\t\t\t没有该学生信息！");}saveList(p2);}}else if (bum == 2){p1 = pHead->next;printf("\n\t\t\t请输入要删除的学生姓名：");scanf("%s", student_name);while (p1){if (strcmp(p1->name, student_name) == 0){printf("\n\t\t\t删除成功，姓名为: %s", student_name);if (p1->next == NULL){pHead->next = NULL;break;}else{pHead->next = p1->next;free(p1);p1 = pHead->next;}}else if(strcmp(p1->name, student_name) != 0){pHead = pHead->next;p1 = pHead->next;printf("\n\t\t\t没有该学生信息！");}saveList(p2);} } else if (bum == 3){return;}printf("\n敲任意数回到主菜单");getch();}void saveList(Student *pHead){FILE *fp;fp = fopen("stud.txt", "w+");pHead = pHead->next;while (pHead){fprintf(fp, "%d %s %c %.1f %.1f %.1f %.1f %.1f\n", pHead->one.num, pHead->name, pHead->one.sex, pHead->one.chin_score,pHead->one.math_score, pHead->one.engl_score, pHead->one.chem_score, pHead->one.phy_score);pHead = pHead->next;}fclose(fp);}void alterStudentInfo(Student *pHead){int bum, count = 0, j = 0;int num;char student_name[20];Student *p1 = pHead->next;system("title 学生成绩统计系统-修改");//将标题栏命名为“学生成绩统计系统”bum = adMenu();if (bum == 1){printf("\n\t\t\t请输入要修改学生的学号：");scanf("%d", &num);while (p1){j++;if (p1->one.num == num){inputData(pHead,p1);break;}p1 = p1->next;}if (p1 == NULL){getch();printf("没有该学生信息！");}}else{if (bum == 2){printf("\n\t\t\t请输入要修改学生的姓名：");scanf("%s", student_name);while (p1){j++;if (strcmp(p1->name, student_name) == 0){inputData(pHead,p1);count = 1;}p1 = p1->next;}if (count == 0){printf("\n\t\t\t没有该学生信息！");getch();}}else{if (3 == bum){return;}else{alterStudentInfo(pHead);}}}saveList(pHead);printf("\n敲任意数回到主菜单");getch();}void statisStudentInfo(Student *pHead){double aver_score[5] = {0,0,0,0,0};Student *p1 = pHead->next;int count = 0;int bum;system("title 学生成绩统计系统-查看");//将标题栏命名为“学生成绩统计系统”bum = statisMenu();if (bum == 1){while (p1){aver_score[0] = aver_score[0] + p1->one.chin_score;aver_score[1] = aver_score[1] + p1->one.math_score;aver_score[2] = aver_score[2] + p1->one.engl_score;aver_score[3] = aver_score[3] + p1->one.chem_score;aver_score[4] = aver_score[4] + p1->one.phy_score;p1 = p1->next;count++;}aver_score[0] = aver_score[0] / count;aver_score[1] = aver_score[1] / count;aver_score[2] = aver_score[2] / count;aver_score[3] = aver_score[3] / count;aver_score[4] = aver_score[4] / count;p1 = pHead->next;printf("\n\n ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n");printf(" ┃ 学号 ┃ 姓 名 ┃性别┃语 文┃高 数┃英 语┃C 语言┃大 物┃平均分┃总 分┃名次┃\n");printf(" ┣━━━╋━━━━╋━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━━╋━━┫\n");while (p1){printf(" ┃ %-5d┃ %-6s ┃ %c ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃%5.1f ┃ %-3d┃\n", p1->one.num,p1->name, p1->one.sex, p1->one.chin_score, p1->one.math_score,p1->one.engl_score, p1->one.chem_score, p1->one.phy_score, p1->one.aver_score, p1->one.sum_score, p1->rank);p1 = p1->next;}printf(" ┗━━━┻━━━━┻━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━━┻━━┛\n");}else{if (bum == 2){return;}}printf("\n敲任意数回到主菜单");getch();}int statisMenu(void){int bum;system("CLS");printf("\n\n\n");printf("\t\t┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓\n");printf("\t\t┃ 1 显示学生成绩 ┃\n");printf("\t\t┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫\n");printf("\t\t┃ 2 返回主菜单 ┃\n");printf("\t\t┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛\n");printf("请按键选择：");bum = (int)(getch() - '0');system("CLS");return bum;}void inputData(Student *pHead,Student *node){Student *p1 = node,*p2,*p3 = pHead;system("CLS");printf("\t注意:姓名不能有空格，性别男用m表示，女用w表示，\n\t各科成绩应该大于0小于100，输入数据时请用空格隔开\n");printf("\n\n\t请依次输入学生的学号、姓名、性别、语文、高数、英语、C语言、大物成绩\n");scanf("%d%s %c%f%f%f%f%f", &p1->one.num, p1->name, &p1->one.sex, &p1->one.chin_score, &p1->one.math_score,&p1->one.engl_score, &p1->one.chem_score, &p1->one.phy_score);p2 = p3->next;while (1){if (p1->one.sex != 'w'&& p1->one.sex != 'm'){p1->one.sex = getchar();printf("性别输入不合法，请重新输入: ");p1->one.sex = getchar();}else{break;}}while (1){if (p2 == NULL){break;}if (p2->one.num == p1->one.num && p2 != node){printf("该学号已存在，请重新输入学号:");scanf("%d", &p1->one.num);p2 = p3->next;}else{p2 = p2->next;}}p1->one.sum_score = (double)(p1->one.chin_score + p1->one.chin_score + p1->one.engl_score +p1->one.chem_score + p1->one.phy_score);p1->one.aver_score = p1->one.sum_score / 5;}阅读全文
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