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/*
* C语言学生信息管理系统（动态链表版）
* 作者：cbc
* 时间：2018年6月7日
* 功能：增添新键数据、修改删除数据、查询统计数据
* 平台：windows
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
# define LEN sizeof(struct Student)struct Student {char num[10];  /*学号*/char name[20]; /*姓名*/char sex[10];  /*性别*/int age;       /*年龄*/char phone[12];/*电话*/char qq[12];   /*QQ号*/char nativePlace[20];/*籍贯*/char department[20];/*系别*/char major[20];/*专业*/char className[20];/*班级*/struct Student *next;
};char filename[30];//全局变量，用来保存要打开的文件名字/*生成链表*/
struct Student *Creat(int n) {void menu_print_in(void);struct Student *head;struct Student *p1, *p2;int i;system("cls");for (i = 1;i < n + 1;i++) {p1 = (struct Student*)malloc(LEN);menu_print_in();scanf("%s %s %s %d %s %s %s %s %s %s", p1->num, p1->name, p1->sex,&p1->age, p1->phone, p1->qq,p1->nativePlace,p1->department,p1->major,p1->className);p1->next = NULL;if (i == 1) {head = p2 = p1;}else {p2->next = p1;p2 = p1;}}return(head);
}/*数据存盘(wb只写)*/
void WriteData_wb(struct Student *head) {FILE *fp;struct Student *p;if ((fp = fopen(filename, "wb")) == NULL)printf("\a error! Can not open the file!");p = head;while (p != NULL) {if (fwrite(p, LEN, 1, fp) != 1) {printf("写入数据出错\n");fclose(fp);return;}p = p->next;}fclose(fp);
}/*数据存盘(ab追加)
void WriteData_ab(struct Student *head) {FILE *fp;struct Student *p;if ((fp = fopen(filename, "ab")) == NULL)printf("\a error! Can not open the file!");p = head;while (p != NULL) {if (fwrite(p, LEN, 1, fp) != 1) {printf("写入数据出错\n");fclose(fp);return;}p = p->next;}fclose(fp);
}/*读取数据*/
/*读取数据文件保存到链表中 ，返回指向此链表头指针*/
struct Student *ReadData(void) {struct Student *head = NULL;struct Student *p1, *p2;//s = p1;p = p2;FILE *fp;if ((fp = fopen(filename, "rb+")) == NULL){printf("打开文件出错\n");exit(0);}while (!feof(fp)) {if ((p1 = (struct Student*)malloc(LEN)) == NULL) {printf("内存申请出错\n");fclose(fp);exit(0);}if (fread(p1, LEN, 1, fp) != 1) {free(p1);break;}if (head == NULL)head = p2 = p1;else {p2->next = p1;p2 = p1;}}fclose(fp);return (head);
}/*【1】全量查询*/
void Print_inquire_all(void) {void menu_print_out(void);struct Student *pt;pt = ReadData();menu_print_out();do {printf("%-10s%6s%8s%4d%13s%11s  %s %s %s %s\n",pt->num, pt->name, pt->sex, pt->age, pt->phone, pt->qq, pt->nativePlace, pt->department, pt->major, pt->className);pt = pt->next;} while (pt != NULL);printf("\n\n");
}/*【2】学号查询*/
int Print_inquire_num() {void menu_print_out(void);struct Student *pt;char str_num[10];printf("◎请输入您要查询的学号:");scanf("%s", str_num);pt = ReadData();menu_print_out();do {if (strcmp(pt->num, str_num) == 0) {printf("%-10s%6s%8s%4d%13s%11s %s %s %s %s\n",pt->num, pt->name, pt->sex, pt->age, pt->phone, pt->qq, pt->nativePlace, pt->department, pt->major, pt->className);printf("\n\n");return 0;}pt = pt->next;} while (pt != NULL);printf("数据库中没有存储您要查询的数据！\n");printf("\n\n");return 0;
}/*【3】姓名查询*/
int Print_inquire_name() {void menu_print_out(void);struct Student *pt;char str_name[20];printf("◎请输入您要查询的姓名:");scanf("%s", str_name);pt = ReadData();menu_print_out();do {if (strcmp(pt->name, str_name) == 0) {printf("%-10s%6s%8s%4d%13s%11s  %s %s %s %s\n",pt->num, pt->name, pt->sex, pt->age, pt->phone, pt->qq, pt->nativePlace, pt->department, pt->major, pt->className);printf("\n\n");return 0;}pt = pt->next;} while (pt != NULL);printf("数据库中没有存储您要查询的数据！\n");printf("\n\n");return 0;
}/*【4】模糊查询*/
int Print_inquire_fuzzy(void) {void menu_print_out(void);struct Student *pt;char str_find[20];int m = 0;printf("◎请输入您要查询的关键词:");scanf("%s", str_find);pt = ReadData();menu_print_out();do {if (strstr(pt->num, str_find) != 0 || strstr(pt->name, str_find) != 0|| strstr(pt->sex, str_find) != 0 || strstr(pt->phone, str_find) != 0|| strstr(pt->qq, str_find) != 0) {printf("%-10s%6s%8s%4d%13s%11s %s %s %s %s\n",pt->num, pt->name, pt->sex, pt->age, pt->phone, pt->qq, pt->nativePlace, pt->department, pt->major, pt->className);m = 1;}pt = pt->next;} while (pt != NULL);if (!m)printf("数据库中没有存储您要查询的数据！\n");printf("\n\n");return 0;
}/*【1】修改数据之删除记录*/
int Delete() {struct Student *pt1, *pt2, *head;char str_num[20];printf("\n◎请输入您要删除的学号信息:");scanf("%s", str_num);pt1 = ReadData();pt2 = pt1->next;head = pt1;while (pt2 != NULL) {if (strcmp(pt1->num, str_num) == 0) {WriteData_wb(pt2);}else if (strcmp(pt2->num, str_num) == 0) {pt1->next = pt2->next;WriteData_wb(head);}pt2 = pt2->next;pt1 = pt1->next;}if (pt2 != NULL)printf("数据库中没有存储您要删除的数据！\n");printf("\n\n");return 0;
}/*【2】修改数据之修改记录*/
int Amend() {void menu_print_in(void);struct Student *pt1, *pt2, *head;char str_num[20];printf("◎请输入您要修改的学号信息:");scanf("%s", str_num);pt1 = ReadData();pt2 = pt1->next;head = pt1;while (pt2 != NULL) {if (strcmp(pt1->num, str_num) == 0) {menu_print_in();scanf("%s %s %s %d %s %s %s %s %s %s", pt1->num, pt1->name, pt1->sex,&pt1->age, pt1->phone, pt1->qq, pt1->nativePlace, pt1->department, pt1->major, pt1->className);WriteData_wb(head);}else if (strcmp(pt2->num, str_num) == 0) {menu_print_in();scanf("%s %s %s %d %s %s %s %s %s %s", pt2->num, pt2->name, pt2->sex,&pt2->age, pt2->phone, pt2->qq, pt2->nativePlace, pt2->department, pt2->major, pt2->className);WriteData_wb(head);}pt2 = pt2->next;pt1 = pt1->next;}if (pt2 != NULL)printf("数据库中没有存储您要删除的数据！\n");return 0;
}/*【3】修改数据之整理数据*/
int Neaten() {struct Student *first;struct Student *tail;struct Student *p_min;struct Student *min;struct Student *p;struct Student *head;head = ReadData();first = NULL;while (head != NULL) {for (p = head, min = head; p->next != NULL; p = p->next) {if (strcmp(p->next->num, min->num) < 0) {p_min = p;min = p->next;}}if (first == NULL) {first = min;tail = min;}else {tail->next = min;tail = min;}if (min == head) {head = head->next;}else {p_min->next = min->next;}}if (first != NULL) {tail->next = NULL;}head = first;WriteData_wb(head);return 0;
}/*输入写入数据的数量*/
int Creat_num(void) {int n;printf("\n◎请输入您此次要添加的数据个数:");if (scanf("%d", &n) != 1) {printf("\a error!");}return n;
}/*选择将要打开的文件*/
int File_name() {printf("\n◎请输入您想要打开的文件:");if (scanf("%s", filename) != 1)printf("\a error!");return 0;
}/*主菜单*/
void menu(void) {void menu_add(void);void menu_inquire(void);void menu_amend(void);int a = 0;printf("              ╭════════╮              \n");printf("╭══════╣学生管理系统V1.0╠══════╮\n");printf("║            ╰════════╯            ║\n");printf("║   【1】添加数据           【3】修改数据    ║\n");printf("║                                            ║\n");printf("║   【2】查询数据           【4】退出系统    ║\n");printf("║                                            ║\n");printf("╰══════════════════════╯\n");printf("◎请输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();while (a != '1'&&a != '2'&&a != '3'&&a != '4') {printf("error! please input the right number!\n");putchar('\a');getchar();printf("◎请重新输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();}switch (a) {case '1': File_name();menu_add();break;case '2': File_name();menu_inquire();break;case '3': File_name();menu_amend();break;case '4': exit(0);break;}getchar();
}/*二级菜单之添加数据*/
void menu_add(void) {int a = 0;system("cls");getchar();printf("              ╭════════╮              \n");printf("╭══════╣  添加数据方式  ╠══════╮\n");printf("║            ╰════════╯            ║\n");printf("║ 【1】新建文件 【2】增添数据 【3】返回菜单  ║\n");printf("║                                            ║\n");printf("╰══════════════════════╯\n");printf("◎请输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();while (a != '1'&&a != '2'&&a != '3') {printf("error! please input the right number!\n");putchar('\a');getchar();printf("◎请重新输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();}switch (a) {case '1': WriteData_wb(Creat(Creat_num()));printf("\n◎新建文件成功且数据已成功保存◎\n");system("pause");system("cls");menu_add();break;case '2': WriteData_ab(Creat(Creat_num()));printf("\n◎数据已成功添加◎\n");system("pause");system("cls");menu_add();break;case '3': system("cls");getchar();menu();break;}
}/*二级菜单之查询数据*/
void menu_inquire(void) {int a = 0;system("cls");getchar();while (1) {system("cls");printf("              ╭════════╮              \n");printf("╭══════╣  查询数据方式  ╠══════╮\n");printf("║            ╰════════╯            ║\n");printf("║    【1】全量查询         【4】模糊查询     ║\n");printf("║                                            ║\n");printf("║    【2】学号查询         【5】返回菜单     ║\n");printf("║                                            ║\n");printf("║    【3】姓名查询                           ║\n");printf("╰══════════════════════╯\n");printf("◎请输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();while (a != '1'&&a != '2'&&a != '3'&&a != '3'&&a != '4'&&a != '5'&&a != '6') {printf("error! please input the right number!\n");putchar('\a');getchar();printf("◎请重新输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();}switch (a) {case '1': Print_inquire_all();system("pause");getchar();break;case '2': Print_inquire_num();system("pause");getchar();break;case '3': Print_inquire_name();system("pause");getchar();break;case '4': Print_inquire_fuzzy();system("pause");getchar();;break;case '5': system("cls");getchar();menu();break;}}
}/*二级菜单之修改数据*/
void menu_amend(void) {int a = 0;system("cls");getchar();while (1) {system("cls");printf("              ╭════════╮              \n");printf("╭══════╣  修改数据方式  ╠══════╮\n");printf("║            ╰════════╯            ║\n");printf("║    【1】删除记录          【3】整理数据    ║\n");printf("║                                            ║\n");printf("║    【2】修改记录          【4】返回菜单    ║\n");printf("╰══════════════════════╯\n");printf("◎请输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();while (a != '1'&&a != '2'&&a != '3'&&a != '4') {printf("error! please input the right number!\n");putchar('\a');getchar();printf("◎请重新输入功能前的序号进入相应的工具:【   】\b\b");a = getchar();}switch (a) {case '1': Delete();printf("\n\n◎已成功删除指定数据◎\n");system("pause");getchar();break;case '2': Amend();printf("\n\n◎已成功修改指定数据◎\n");system("pause");getchar();break;case '3': Neaten();printf("\n\n◎数据已成功按照学号重新排列◎\n");system("pause");getchar();break;case '4': system("cls");getchar();menu();break;}}
}/*输入输出提示栏*/
void menu_print_in(void) {printf("------------------------------------------------------------------------\n");printf("学号      姓名     性别  年龄    电话         QQ        籍贯  系别  专业  班级   \n");printf("------------------------------------------------------------------------\n");
}
void menu_print_out(void) {printf("--------------------------------------------------------------------------\n");printf("学号      姓名     性别  年龄    电话         QQ        籍贯  系别  专业  班级 \n");printf("--------------------------------------------------------------------------\n");
}/*主函数*/
int main(void) {SetConsoleTitle(L"学生学籍管理系统");menu();return 0;
}