#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<windows.h>

typedef struct STUDENT
{
	char name[20] = { 0 };
	long long int number;
	char profession[30] = { 0 };
	char grade[5] = { 0 };
	char Class[5] = { 0 };
	double advanced_mathematics;
	double English;
	double Elective;
	double Freshman_Seminar;
	double Morality;
	double Mental_health;
	double programming;
	struct STUDENT* link = NULL;
}stu;

enum Color				//枚举各种颜色
{
	black, blue, green, lakeBlue, red, purple, yellow, white, gray,
	lightBlue, lightGreen, lightSimpleGreen, lightRed, lightPurple, lightYellow, brightWhite
};


void setColor(unsigned short textColor = 0, unsigned short backColor = 7)			//设置软件背景颜色以及字体颜色
{
	char command[9] = "color 07";		//默认颜色	
	command[6] = '0' + backColor;		//将backColor变量改为字符型 
	command[7] = '0' + textColor;		//将textColor变量改为字符型 
	system(command);				//调用系统函数 
}


void menu();					//显示主菜单
void create(char temp);		    //创建或添加学生数据(不同专业  不同年级  不同班级都新建一个文件以便于区分)
void read(char index);		    //通过需要的权限来创建文件指针
void print(char* filename);		//打印当前文件种的学生数据
void Delete_and_modify();		//删除或修改学生数据
int check(char* filename);		//校验文件是否存在  若存在 则返回1  如不存在  则返回0(尝试以只读权限创造文件指针  如果指针为空说明该文件不存在)
void search(stu* head);			//搜索学生
void openfile();				//打开存着各个文件名称的文件
void range();					//有/无范围的查看学生成绩
void printall();				//打印所有学生的数据
void sort();					//对学生成绩进行排序
void copy(stu* p1, stu* p2);	//交换结构体p1与p2中的内容(排序中使用)
char* name();					//获取需要创建/打开/录入/查看的学生的专业与班级
stu* all();						//将所有文件的内容以链表的形式串联起来  并返回头结点

char* filename = (char*)calloc(1,sizeof(char) * 100);					//全局变量文件名
char profession[30] = { 0 }, grade[5] = { 0 }, Class[5] = { 0 };		//全局变量学生专业  年级  班级
FILE* fp;				//文件指针
FILE* filecount;		//装有各个文件名称的文件的指针

int main()
{
	setColor(7, 3);				//蓝底白字
	int n;
	stu* head = NULL;

	while (1)					//不断循环直到用户主动退出系统
	{
		menu();

		scanf("%d", &n);		//获取用户想要的操作

		switch (n)
		{
			case 1: create('c'); break;							//'c'代表创建新数据
			case 2: create('+'); break;							//'+'代表增添新数据
			case 3: filename = name(); print(filename); break;	//先获取文件名  再打开该文件
			case 4: search(head); break;
			case 5: range(); break;								
			case 6: sort(); break;
			case 7: printall(); break;
			case 8: Delete_and_modify(); break;
			case 9: if (filecount != NULL) fclose(filecount); system("cls"); printf("\n\n\n\n\n\n\n\n\n\n\n\n\n                                                   欢迎您再次使用!!!\n\n\n\n\n\n\n\n\n\n\n\n\n "); return 0;			//结束语
			default: printf("\n\n\n\n\n\n\n                                                   输入有误  请重新输入!!!"); Sleep(1000); break;	//提醒用户输入错误 并再次输入
		}
	}
}

void create(char temp)
{
	int people_num, count = 0;
	openfile();
	printf("\n\n请输入学生人数 : ");
	scanf("%d", &people_num);				//获取需要录入的学生人数

	if (temp == 'c')
	{
		filename = name();

		int index = check(filename);			//校验文件是否存在

		index == 0 ? read('w') : read('a');		//如文件已存在便以追加权限打开  如不存在则创建该文件

		if (index == 0)
		{
			fwrite(filename, sizeof(char) * 100, 1, filecount);		//将文件名写入filecount所指的文件
		}
	}

	while (people_num--)
	{
		count++;							//用于对输入的第几号学生进行计数

		if (temp == '+')
		{
			filename = name();

			int index = check(filename);

			index == 0 ? read('w') : read('a');

			if (index == 0)								//若该文件不存在  则将该文件的名称写入特定文件中
			{
				fwrite(filename, sizeof(char) * 100, 1, filecount);
			}
		}

		stu* p1 = (stu*)calloc(1, sizeof(stu));

		printf("\n请输入第%d号学生姓名 : ",count);
		scanf("%s", p1->name);

		printf("\n请输入第%d号学生学号(七位及以上) : ", count);
		scanf("%lld", &p1->number);

		printf("\n请输入第%d号学生高数成绩 : ", count);
		scanf("%lf", &p1->advanced_mathematics);

		printf("\n请输入第%d号学生英语成绩 : ", count);
		scanf("%lf", &p1->English);

		printf("\n请输入第%d号学生程序设计成绩 : ", count);
		scanf("%lf", &p1->programming);

		printf("\n请输入第%d号学生新生研讨课成绩 : ", count);
		scanf("%lf", &p1->Freshman_Seminar);

		printf("\n请输入第%d号学生心理健康课成绩 : ", count);
		scanf("%lf", &p1->Mental_health);

		printf("\n请输入第%d号学生选修课成绩 : ", count);
		scanf("%lf", &p1->Elective);

		printf("\n请输入第%d号学生思修成绩 : ", count);
		scanf("%lf", &p1->Morality);

		strcpy(p1->grade, grade);
		strcpy(p1->profession, profession);
		strcpy(p1->Class, Class);

		fwrite(p1, sizeof(stu), 1, fp);					//将收到的用户数据(以结构体方式)写入fp所指文件中

		if (temp == '+')
		{
			fclose(fp);
		}
	}

	

	printf("\n录入成功!!!\n");

	if (temp == 'c')
	{
		fclose(fp);
	}

	if (temp == 'c')
	{
		print(filename);						//显示录入的班级的数据  以供用户确认输入是否正确
	}

	fclose(filecount);							//关闭存文件名的文件指针

	system("pause");							//按任意键以继续  给予用户查看数据的时间  同时使得界面保持简洁
}



int check(char* filename)
{
	if (!(fp = fopen(filename, "r")))
	{
		return 0;
	}

	else
	{
		fclose(fp);
		return 1;
	}
}

stu* all()
{
	stu* p1, * p2, * head;
	int count = 0;
	p1 = p2 = head = NULL;
	char* filename_temp = (char*)calloc(1, sizeof(char) * 100);

	openfile();

	while (!feof(filecount))
	{
		count++;															//计数用
		fread(filename_temp, sizeof(char) * 100, 1, filecount);				//不断将自身存入的文件名读出

		if (count == 1)														//如果该文件名是第一次出现则不做干涉
		{
			strcpy(filename, filename_temp);
		}

		else
		{
			if (strcmp(filename_temp,filename) == 0)						//若该文件名已经出现过则跳过该文件名  避免重复
			{
				continue;
			}

			else
			{
				strcpy(filename, filename_temp);
			}
		}

		if (!(fp = fopen(filename, "r")))
		{
			printf("\n文件读取失败!!!\n");									//文件操作失败提醒
		}

		while (!feof(fp))
		{
			p1 = (stu*)calloc(1, sizeof(stu));

			fread(p1, sizeof(stu), 1, fp);									//不断将文件中的结构体读出 形成指针

			if (p1->number)
			{
				head == NULL ? head = p1 : p2->link = p1;

				p2 = p1;
			}
		}

		fclose(fp);									//关闭文件指针
	}

	return head;									//返回头结点
}

void Delete_and_modify()
{
	filename = name();
	int count = 0;
	int index_1, index_2;
	char student_name[20] = { 0 };

	printf("\n请输入学生姓名 : ");
	scanf("%s", student_name);

	

	printf("\n\n请输入操作 : \n\
                           |-----------------------------------|\n\
                           |1.-----------------------修改数据  |\n\
                           |2.-----------------------删除数据  |\n\
                           |-----------------------------------|\n");

	scanf("%d", &index_1);

	if (index_1 == 1)				//接收用户操作
	{
		read('r');

		printf("请输入需要修改的数据 : \n\
                  |-----------------------------------------------------|\n\
                  |1.-----------------------------------------学生姓名  |\n\
                  |2.-----------------------------------------学生学号  |\n\
                  |3.-----------------------------------------高数      |\n\
                  |4.-----------------------------------------英语      |\n\
                  |5.-----------------------------------------程序设计  |\n\
                  |6.-----------------------------------------新生研讨课|\n\
                  |7.-----------------------------------------心理健康课|\n\
                  |8.-----------------------------------------选修课    |\n\
                  |9.-----------------------------------------思修课    |\n\
                  |-----------------------------------------------------|\n");

		scanf("%d", &index_2);				//接收用户操作

		printf("|----------------------------------------------------------------------------------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t高数\t英语\t程序设计\t新生研讨课\t心理健康\t选修课\t思修   |\n");

		int count_1 = 0;

		while (!feof(fp))
		{
			count++;
			stu* temp = (stu*)calloc(1, sizeof(stu));

			fread(temp, sizeof(stu), 1, fp);		//读出文件中的结构体

			if (strcmp(temp->name, student_name) == 0)		//将文件中读出的结构体与用户输入做对比  若相同则进行操作
			{
				count_1++;
				printf("|----------------------------------------------------------------------------------------------------------------------|\n");
				printf("|%lld\t%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t\t%.1lf\t\t%.1lf\t\t%.1lf\t%.01lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics, temp->English, temp->programming, temp->Freshman_Seminar, temp->Mental_health, temp->Elective, temp->Morality);
				
				if (temp->Morality > 10 && temp->Morality < 100)		/* 使得显示正确(分数为两位数时 : 三位数时 : 一位数时) */
				{
					printf("   |\n");
				}

				else if (temp->Morality == 100)
				{
					printf("  |\n");
				}

				else
				{
					printf("    |\n");
				}

				printf("|----------------------------------------------------------------------------------------------------------------------|\n");


				fseek(fp, sizeof(stu) * (count - 1), SEEK_SET);   //找到用户想修改的文件后  将文件内部指针指向它

				if (index_2 == 1)									//对该元素进行修改   之后写入
				{
					printf("请输入更改后的学生姓名 : ");
					scanf("%s", student_name);

					strcpy(temp->name, student_name);
				}

				else if (index_2 == 2)
				{
					printf("请输入更正后的学号(七位及以上) : ");
					long long int student_number;
					scanf("%lld", &student_number);

					temp->number = student_number;
				}

				else if (index_2 == 3)
				{
					printf("请输入更正后的高数成绩 : ");
					double advanced_mathematics;
					scanf("%lf", &advanced_mathematics);

					temp->advanced_mathematics = advanced_mathematics;
				}

				else if (index_2 == 4)
				{
					printf("请输入更正后的英语成绩 : ");
					double English;
					scanf("%lf", &English);

					temp->English = English;
				}

				else if (index_2 == 5)
				{
					printf("请输入更正后的程序设计成绩 : ");
					double programming;
					scanf("%lf", &programming);

					temp->programming = programming;
				}

				else if (index_2 == 6)
				{
					printf("请输入更正后的新生研讨课成绩 : ");
					double Freshman_Seminar;
					scanf("%lf", &Freshman_Seminar);

					temp->Freshman_Seminar = Freshman_Seminar;
				}

				else if (index_2 == 7)
				{
					printf("请输入更正后的心理健康课成绩 : ");
					double Mental_health;
					scanf("%lf", &Mental_health);

					temp->Mental_health = Mental_health;
				}

				else if (index_2 == 8)
				{
					printf("请输入更正后的选修课成绩 : ");
					double Elective;
					scanf("%lf", &Elective);

					temp->Elective = Elective;
				}

				else if (index_2 == 9)
				{
					printf("请输入更正后的思修课成绩 : ");
					double Morality;
					scanf("%lf", &Morality);

					temp->Morality = Morality;
				}


				fwrite(temp, sizeof(stu), 1, fp);
				fclose(fp);

				system("pause");
				return;
			}

			if (count_1 == count)
			{
				printf("|----------------------------------------------------------------------------------------------------------------------|\n\
该专业/年级/班级无此人\n\
|----------------------------------------------------------------------------------------------------------------------|\n");
			}

			

		}
	}

	else if (index_1 == 2)
	{
		read('r');

		printf("确认删除该学生数据吗 \n\
                             |-----------------------------------------------|\n\
                             |1.-----------------------------------------是  |\n\
                             |2.-----------------------------------------否  |\n\
                             |-----------------------------------------------|\n");

		scanf("%d", &index_2);

		if (index_2 == 1)
		{
			stu* p1 = NULL, * temp = NULL, * p2, *head = NULL;
			temp = p2 = (stu*)calloc(1, sizeof(stu));

			while (!feof(fp))
			{
				p1 = (stu*)calloc(1, sizeof(stu));

				fread(p1, sizeof(stu), 1, fp);							//将文件内的结构体全部读出   并形成指针

				if (p1->number)
				{
					head == NULL ? head = p1 : p2->link = p1;

					p2 = p1;
				}
			}

			fclose(fp);

			read('w');													//重置该文件

			temp = head;

			while (head->link)											//删去特定元素后
			{
				if (strcmp(head->name,student_name) == 0)
				{
					head = head->link;
					p1->link = head;

					if (strcmp(temp->name, student_name) == 0)
					{
						temp = head;
					}
				}
				if (head->link != NULL)
				{
					p1 = head;
					head = head->link;
				}

			}

			count = 0;

			while (temp->link)								//重新写入文件中
			{
				fwrite(temp, sizeof(stu), 1, fp);
				temp = temp->link;
				count++;
			}

			if (count != 0)
			{
				fwrite(temp, sizeof(stu), 1, fp);
			}

			fclose(fp);

		}

		else
		{
			printf("\n\n\n\n\n\n\n                                                   已取消");
		}
	}

	print(filename);					//显示用户操作后的效果
}

void search(stu* head)
{
	head = all();
	stu* temp = head;
	int index, count = 0;
	char search_name[20] = { 0 };
	long long int search_number = 0;

	printf("\n请选择查询方式 : \n\
                             |-----------------------------------------------------|\n\
                             |1.-----------------------------------------按姓名查询|\n\
                             |2.-----------------------------------------按学号查询|\n\
                             |-----------------------------------------------------|\n");

	scanf("%d", &index);

	if (index == 1)
	{
		printf("\n请输入想要查询的学生姓名 : ");
		scanf("%s", search_name);

		printf("|----------------------------------------------------------------------------------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t高数\t英语\t程序设计\t新生研讨课\t心理健康\t选修课\t思修   |\n");

		while (temp->number)
		{
			if (strcmp(search_name, temp->name) == 0)
			{
				printf("|----------------------------------------------------------------------------------------------------------------------|\n");
				printf("|%lld\t%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t\t%.1lf\t\t%.1lf\t\t%.1lf\t%.01lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics, temp->English, temp->programming, temp->Freshman_Seminar, temp->Mental_health, temp->Elective, temp->Morality);

				if (temp->Morality == 100)
				{
					printf("  |\n");
				}

				else if (temp->Morality > 10 && temp->Morality < 100)
				{
					printf("   |\n");
				}

				else
				{
					printf("    |\n");
				}

				count++;
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}
		}


	}

	else if (index == 2)
	{
		printf("\n请输入想要查询的学生的学号(七位及以上) : ");
		scanf("%lld", &search_number);

		printf("|----------------------------------------------------------------------------------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t高数\t英语\t程序设计\t新生研讨课\t心理健康\t选修课\t思修   |\n");

		while (temp->number)
		{
			if (search_number == temp->number)
			{
				printf("|----------------------------------------------------------------------------------------------------------------------|\n");
				printf("|%lld\t%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t\t%.1lf\t\t%.1lf\t\t%.1lf\t%.01lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics, temp->English, temp->programming, temp->Freshman_Seminar, temp->Mental_health, temp->Elective, temp->Morality);

				if (temp->Morality == 100)
				{
					printf("  |\n");
				}

				else if (temp->Morality > 10 && temp->Morality < 100)
				{
					printf("   |\n");
				}

				else
				{
					printf("    |\n");
				}

				count++;
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}
		}
	}

	if (count == 0)
	{
		printf("|----------------------------------------------------------------------------------------------------------------------|\n");
		printf("|未查询到此学生信息.                                                                                                   |\n");
	}

	printf("|----------------------------------------------------------------------------------------------------------------------|\n");
	
	system("pause");
}

void read(char index)				//集中地对文件进行不同权限的创建
{
	if (index == 'r')
	{
		if (!(fp = fopen(filename, "r+")))
		{
			printf("文件读取失败!!!\n");
		}
	}

	else if (index == 'w')
	{
		if (!(fp = fopen(filename, "w+")))
		{
			printf("文件创建失败!!!");
		}
	}

	else if (index == 'a')
	{
		if (!(fp = fopen(filename, "a+")))
		{
			printf("文件添加失败!!!");
		}
	}
}

void printall()
{
	stu* head, * temp;
	head = (stu*)calloc(1, sizeof(stu));
	temp = (stu*)calloc(1, sizeof(stu));

	head = all();
	temp = head;

	printf("|----------------------------------------------------------------------------------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t高数\t英语\t程序设计\t新生研讨课\t心理健康\t选修课\t思修   |\n");

	while (temp->number)
	{
		if (temp->number)			//确保该元素有意义而不为空
		{
			printf("|----------------------------------------------------------------------------------------------------------------------|\n");

			printf("|%lld\t%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t\t%.1lf\t\t%.1lf\t\t%.1lf\t%.01lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics, temp->English, temp->programming, temp->Freshman_Seminar, temp->Mental_health, temp->Elective, temp->Morality);

			if (temp->Morality > 10 && temp->Morality < 100)
			{
				printf("   |\n");
			}

			else if (temp->Morality == 100)
			{
				printf("  |\n");
			}

			else
			{
				printf("    |\n");
			}
		}

		if (!temp->link)
		{
			break;						//退出循环
		}

		if (temp->link)
		{
			temp = temp->link;
		}
	}

	printf("|----------------------------------------------------------------------------------------------------------------------|\n");

	system("pause");
}

void range()
{
	int index_1, index_2;
	double range_1, range_2;
	char temp_1;
	stu* head, * temp;
	head = temp = NULL;

	printf("请输入想要查询的学科 : \n\
                             |-----------------------------------------------------|\n\
                             |1.-----------------------------------------高数      |\n\
                             |2.-----------------------------------------英语      |\n\
                             |3.-----------------------------------------程序设计  |\n\
                             |4.-----------------------------------------新生研讨课|\n\
                             |5.-----------------------------------------心理健康课|\n\
                             |6.-----------------------------------------选修课    |\n\
                             |7.-----------------------------------------思修课    |\n\
                             |-----------------------------------------------------|\n");

	scanf("%d", &index_1);

	printf("是否指定查询成绩范围 : \n\
                          |---------------------------------------------------------|\n\
                          |1.-----------------------------------------------------是|\n\
                          |2.-----------------------------------------------------否|\n\
                          |---------------------------------------------------------|\n");

	scanf("%d", &index_2);

	if (index_2 == 2)
	{
		range_1 = 0, range_2 = 100;
	}

	if (index_2 == 1)
	{
		printf("\n请输入成绩范围(输入格式 : 最低成绩-最高成绩) : ");

		scanf("%lf%c%lf", &range_1, &temp_1, &range_2);
	}

	head = all();

	temp = head;

	if (index_1 == 1)
	{
		printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

		while (temp->number)
		{
			if (temp->advanced_mathematics >= range_1 && temp->advanced_mathematics <= range_2)
			{
				printf("|----------------------------------------------|\n");

				printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics);

				if (temp->advanced_mathematics > 10 && temp->advanced_mathematics < 100)
				{
					printf("   |\n");
				}

				else if (temp->advanced_mathematics == 100)
				{
					printf("  |\n");
				}

				else
				{
					printf("    |\n");
				}
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}
			
		}

		printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 2)
	{
		printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

		while (temp->number)
		{
			if (temp->English >= range_1 && temp->English <= range_2)
			{
				printf("|----------------------------------------------|\n");

				printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->English);

				if (temp->English > 10 && temp->English < 100)
				{
					printf("   |\n");
				}

				else if (temp->English == 100)
				{
					printf("  |\n");
				}

				else
				{
					printf("    |\n");
				}
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}

		}

		printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 3)
	{
		printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

		while (temp->number)
		{
			if (temp->programming >= range_1 && temp->programming <= range_2)
			{
				printf("|----------------------------------------------|\n");

				printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->programming);

				if (temp->programming > 10 && temp->programming < 100)
				{
					printf("   |\n");
				}

				else if (temp->programming == 100)
				{
					printf("  |\n");
				}

				else
				{
					printf("    |\n");
				}
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}

		}

		printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 4)
	{
	printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

	while (temp->number)
	{
		if (temp->Freshman_Seminar >= range_1 && temp->Freshman_Seminar <= range_2)
		{
			printf("|----------------------------------------------|\n");

			printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Freshman_Seminar);

			if (temp->Freshman_Seminar > 10 && temp->Freshman_Seminar < 100)
			{
				printf("   |\n");
			}

			else if (temp->Freshman_Seminar == 100)
			{
				printf("  |\n");
			}

			else
			{
				printf("    |\n");
			}
		}

		temp = temp->link;

		if (temp->link == NULL)
		{
			break;
		}

	}

	printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 5)
	{
	printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

	while (temp->number)
	{
		if (temp->Mental_health >= range_1 && temp->Mental_health <= range_2)
		{
			printf("|----------------------------------------------|\n");

			printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Mental_health);

			if (temp->Mental_health > 10 && temp->Mental_health < 100)
			{
				printf("   |\n");
			}

			else if (temp->Mental_health == 100)
			{
				printf("  |\n");
			}

			else
			{
				printf("    |\n");
			}
		}

		temp = temp->link;

		if (temp->link == NULL)
		{
			break;
		}

	}

	printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 6)
	{
	printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

	while (temp->number)
	{
		if (temp->Elective >= range_1 && temp->Elective <= range_2)
		{
			printf("|----------------------------------------------|\n");

			printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Elective);

			if (temp->Elective > 10 && temp->Elective < 100)
			{
				printf("   |\n");
			}

			else if (temp->Elective == 100)
			{
				printf("  |\n");
			}

			else
			{
				printf("    |\n");
			}
		}

		temp = temp->link;

		if (temp->link == NULL)
		{
			break;
		}

	}

	printf("|----------------------------------------------|\n");
	}

	else if (index_1 == 7)
	{
	printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

		while (temp->number)
		{
			if (temp->Morality >= range_1 && temp->Morality <= range_2)
			{
				printf("|----------------------------------------------|\n");

				printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Morality);

				if (temp->Morality > 10 && temp->Morality < 100)
				{
					printf("   |\n");
				}

				else if (temp->Morality == 100)
				{
					printf("  |\n");
				}

				else
				{
					printf("    |\n");
				}
			}

			temp = temp->link;

			if (temp->link == NULL)
			{
				break;
			}

		}

		printf("|----------------------------------------------|\n");
	}

	system("pause");
}

void copy(stu* p1, stu* p2)
{
	stu* temp = (stu*)calloc(1,sizeof(stu));				//交换两结点中的所有数据

	strcpy(temp->grade, p1->grade);
	strcpy(temp->profession, p1->profession);
	strcpy(temp->Class, p1->Class);
	strcpy(temp->name, p1->name);
	temp->number = p1->number;
	temp->advanced_mathematics = p1->advanced_mathematics;
	temp->programming = p1->programming;
	temp->English = p1->English;
	temp->Mental_health = p1->Mental_health;
	temp->Freshman_Seminar = p1->Freshman_Seminar;
	temp->Elective = p1->Elective;
	temp->Morality = temp->Morality;

	strcpy(p1->grade, p2->grade);
	strcpy(p1->profession, p2->profession);
	strcpy(p1->Class, p2->Class);
	strcpy(p1->name, p2->name);
	p1->number = p2->number;
	p1->advanced_mathematics = p2->advanced_mathematics;
	p1->programming = p2->programming;
	p1->English = p2->English;
	p1->Mental_health = p2->Mental_health;
	p1->Freshman_Seminar = p2->Freshman_Seminar;
	p1->Elective = p2->Elective;
	p1->Morality = temp->Morality;

	strcpy(p2->grade, temp->grade);
	strcpy(p2->profession, temp->profession);
	strcpy(p2->Class, temp->Class);
	strcpy(p2->name, temp->name);
	p2->number = temp->number;
	p2->advanced_mathematics = temp->advanced_mathematics;
	p2->programming = temp->programming;
	p2->English = temp->English;
	p2->Mental_health = temp->Mental_health;
	p2->Freshman_Seminar = temp->Freshman_Seminar;
	p2->Elective = temp->Elective;
	p2->Morality = temp->Morality;


}

char* name()
{
	printf("\n请输入学生专业 : ");
	scanf("%s", profession);

	printf("\n请输入学生年级 : ");
	scanf("%s", grade);

	printf("\n请输入学生班级 : ");
	scanf("%s", Class);

	strcpy(filename, profession);
	strcat(filename, "_");
	strcat(filename, grade);
	strcat(filename, "_");
	strcat(filename, Class);
	strcat(filename, ".bin");



	return filename;
}

void openfile()
{
	char temp[] = "filecoun.bin";

	int index = check(temp);

	if (index == 0)
	{
		if (!(filecount = fopen(temp, "w+")))
		{
			printf("文件名创建失败!!!\n");
		}
	}

	else
	{
		if (!(filecount = fopen(temp, "a+")))
		{
			printf("文件名读取失败!!!\n");
		}
	}
}

void sort()
{
	int index_1, index_2;
	stu* head, * p1, * p2;
	head = all();
	p1 = p2 = head;

	printf("请输入想要查询的学科 : \n\
|-----------------------------------------------------|\n\
|1.-----------------------------------------高数      |\n\
|2.-----------------------------------------英语      |\n\
|3.-----------------------------------------程序设计  |\n\
|4.-----------------------------------------新生研讨课|\n\
|5.-----------------------------------------心理健康课|\n\
|6.-----------------------------------------选修课    |\n\
|7.-----------------------------------------思修课    |\n\
|-----------------------------------------------------|\n");

	scanf("%d", &index_1);

	printf("\n请选择排序方式 : \n\
|-----------------------------------------------------|\n\
|1.-----------------------------------------升序排列  |\n\
|2.-----------------------------------------降序排列  |\n\
|-----------------------------------------------------|\n");

	scanf("%d", &index_2);

	if (index_2 == 1)
	{
		for (p1 = head; p1->link; p1 = p1->link)
		{
			for (p2 = p1->link; p2->number; p2 = p2->link)
			{
				if (index_1 == 1)
				{
					if (p1->advanced_mathematics > p2->advanced_mathematics)
					{
						copy(p1,p2);
					}
				}

				else if (index_1 == 2)
				{
					if (p1->English > p2->English)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 3)
				{
					if (p1->programming > p2->programming)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 4)
				{
					if (p1->Freshman_Seminar > p2->Freshman_Seminar)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 5)
				{
					if (p1->Mental_health > p2->Mental_health)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 6)
				{
					if (p1->Elective > p2->Elective)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 7)
				{
					if (p1->Mental_health > p2->Mental_health)
					{
						copy(p1, p2);
					}
				}

				if (!p2->link)
				{
					break;
				}
			}
		}
	}

	else if (index_2 == 2)
	{
		for (p1 = head; p1->link; p1 = p1->link)
		{
			for (p2 = p1->link; p2->number; p2 = p2->link)
			{
				if (index_1 == 1)
				{
					if (p1->advanced_mathematics < p2->advanced_mathematics)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 2)
				{
					if (p1->English < p2->English)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 3)
				{
					if (p1->programming < p2->programming)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 4)
				{
					if (p1->Freshman_Seminar < p2->Freshman_Seminar)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 5)
				{
					if (p1->Mental_health < p2->Mental_health)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 6)
				{
					if (p1->Elective < p2->Elective)
					{
						copy(p1, p2);
					}
				}

				else if (index_1 == 7)
				{
					if (p1->Mental_health < p2->Mental_health)
					{
						copy(p1, p2);
					}
				}

				if (!p2->link)
				{
					break;
				}
			}
		}
	}

	stu* temp = head;

	double tmp = 0;

	printf("|----------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t成绩   |\n");

	while (temp->number)
	{
		printf("|----------------------------------------------|\n");

		switch (index_1)  //用tmp代替个元素  简化代码
		{
		case 1: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics); tmp = temp->advanced_mathematics; break;
		case 2: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->English); tmp = temp->English; break;
		case 3: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->programming); tmp = temp->programming; break;
		case 4: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Freshman_Seminar); tmp = temp->Freshman_Seminar; break;
		case 5: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Mental_health); tmp = temp->Mental_health; break;
		case 6: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Elective); tmp = temp->Elective; break;
		case 7: printf("|%lld\t%s\t%s\t%s\t%.1lf", temp->number, temp->name, temp->grade, temp->Class, temp->Morality); tmp = temp->Morality; break;
		}


		if (tmp > 10 && tmp < 100)
		{
			printf("   |\n");
		}

		else if (tmp == 100)
		{
			printf("  |\n");
		}

		else
		{
			printf("    |\n");
		}

		if (temp->link == NULL)
		{
			break;
		}

		temp = temp->link;

	}

	printf("|----------------------------------------------|\n");

	system("pause");

}
void print(char *filename)
{
	if (!(fp = fopen(filename, "r")))
	{
		printf("文件读取失败!!!\n");
	}

	printf("|----------------------------------------------------------------------------------------------------------------------|\n\
|学号\t\t姓名\t年级\t班级\t高数\t英语\t程序设计\t新生研讨课\t心理健康\t选修课\t思修   |\n");

	while (!feof(fp))
	{
		stu* temp = (stu*)calloc(1, sizeof(stu));

		fread(temp, sizeof(stu), 1, fp);

		if (temp->number)
		{
			printf("|----------------------------------------------------------------------------------------------------------------------|\n");

			printf("|%lld\t%s\t%s\t%s\t%.1lf\t%.1lf\t%.1lf\t\t%.1lf\t\t%.1lf\t\t%.1lf\t%.01lf", temp->number, temp->name, temp->grade, temp->Class, temp->advanced_mathematics, temp->English, temp->programming, temp->Freshman_Seminar, temp->Mental_health, temp->Elective, temp->Morality);

			if (temp->Morality > 10 && temp->Morality < 100)
			{
				printf("   |\n");
			}

			else if (temp->Morality == 100)
			{
				printf("  |\n");
			}

			else
			{
				printf("    |\n");
			}
		}
	}

	printf("|----------------------------------------------------------------------------------------------------------------------|\n");

	fclose(fp);

	system("pause");
}


void menu()
{
	system("cls");

	printf("\n\
               |------------------------------------------------------------------------------------|\n\
               |1.----------------------------------------------有序输入学生数据(学生专业都相同).   |\n\
               |2.----------------------------------------------乱序输入学生数据(学生专业可能不同). |\n\
               |3.----------------------------------------------查看指定班级数据.                   |\n\
               |4.----------------------------------------------学生查询.                           |\n\
               |5.----------------------------------------------查看单独学科成绩.                   |\n\
               |6.----------------------------------------------为单科成绩排序并查看.               |\n\
               |7.----------------------------------------------打印所有学生的成绩.                 |\n\
               |8.----------------------------------------------修改/删除学生数据                   |\n\
               |9.----------------------------------------------退出系统                            |\n\
               |------------------------------------------------------------------------------------|\n");
}