c语言实现学生档案管理系统

/*课程设计项目名称：学生档案管理系统作者：施瑞文 时间：.3.3 */#include<stdio.h>#include<string.h>#include<stdlib.h>#include<conio.h>#include<windows.h>#define N sizeof(struct Student)#define M sizeof(struct Password)#define MAX 1000struct Student{char number[10]; //学号char name[10]; //姓名char sex[2]; //性别struct Birthday //出生日期 {int year; //年int month; //月int day; //日 }birtnday;struct Score //成绩{float c_language; //c语言float math; //高数float Russian;//俄语float Russian_hearing; //俄语听力float professional; //专业导论float politics; //政治 }score;char remark[100]; //备注 int num;struct Student *next;};typedef struct Student Stu;typedef Stu *Stup;typedef struct Password{char password[18];struct Password *next;}pass;typedef pass *passw;typedef struct TOTAL //总分 {char number[10];char name[10];char sex[2];float c_language; //c语言float math; //高数float Russian;//俄语float Russian_hearing; //俄语听力float professional; //专业导论float politics; //政治float sum;}Total; Total total[MAX];//好多自定义函数 void color(short x);//设置颜色void HideCursor();//隐藏光标void toxy(int x, int y);//将光标移动到X,Y坐标处void menu(); //主菜单 void over(); //退出软件void signin(); //登陆 passw ff(); //将文件中的内容读入链表，返回值为表头地址 void save_password(passw p);//保存密码 void amend_password(); //修改密码 void input_information(); //信息录入 void amend_information(); //修改信息 void delete_information(); //删除信息 void delete_number(); //按学号查询删除void delete_name(); //按姓名查询删除 void save_information(Stup p); //保存信息 void print_information(); //信息显示 Stup ss(); //将文件中的内容读入链表，返回值为表头地址void find_information(); ///查找信息 void find_number_information(); //按学号查询 void find_name_information(); //按姓名查询 void statistics_information(); //信息统计 void average_score(); //平均分void total_score_ranked(); //总分排名void fail_numbers();//各科不及格人数 void assignment(); //将信息赋值到一个结构体中 void grade_table(); //各科成绩分布 void analyze_c(); //c语言 void analyze_math();//高数 void analyze_Russian();//俄语 void analyze_Russian_hearing();//俄语听力 void analyze_professional();//专业导论 void analyze_politics(); //政治 int cmp(const void *a,const void *b);int cmp1(const void *a,const void *b); //快速排序 int cmp2(const void *a,const void *b);int cmp3(const void *a,const void *b);int cmp4(const void *a,const void *b);int cmp5(const void *a,const void *b);int cmp6(const void *a,const void *b);char _password[18];passw password_head;int len;void color(short x) //设置颜色 {if(x>=0&&x<=15){SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),x);}else{SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),x);}} void HideCursor()//隐藏光标{CONSOLE_CURSOR_INFO cursor_info = {1, 0}; SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursor_info);}void toxy(int x, int y)//将光标移动到X,Y坐标处{COORD pos = { x , y };HANDLE Out = GetStdHandle(STD_OUTPUT_HANDLE);SetConsoleCursorPosition(Out, pos); }int cmp(const void *a,const void *b) //快速排序 {return ((*(Total *)b).sum)-((*(Total *)a).sum);}int cmp1(const void *a,const void *b) //快速排序 {return ((*(Total *)b).c_language)-((*(Total *)a).c_language);}int cmp2(const void *a,const void *b) //快速排序 {return ((*(Total *)b).math)-((*(Total *)a).math);}int cmp3(const void *a,const void *b) //快速排序 {return ((*(Total *)b).Russian)-((*(Total *)a).Russian);}int cmp4(const void *a,const void *b) //快速排序 {return ((*(Total *)b).Russian_hearing)-((*(Total *)a).Russian_hearing);}int cmp5(const void *a,const void *b) //快速排序 {return ((*(Total *)b).professional)-((*(Total *)a).professional);}int cmp6(const void *a,const void *b) //快速排序 {return ((*(Total *)b).politics)-((*(Total *)a).politics);}void menu() //主菜单{do{system("cls"); //清屏 fflush(stdin); //清空缓存 color(14);char t;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(45,7);printf("| |");toxy(45,8);printf("| 1.信息录入 |");toxy(45,9);printf("| |");toxy(45,10);printf("| 2.信息修改 |");toxy(45,11);printf("| |");toxy(45,12);printf("| 3.信息删除 |");toxy(45,13);printf("| |");toxy(45,14);printf("| 4.信息显示 |");toxy(45,15);printf("| |");toxy(45,16);printf("| 5.信息查找 |");toxy(45,17);printf("| |");toxy(45,18);printf("| 6.信息统计 |");toxy(45,19);printf("| |");toxy(45,20);printf("| 7.修改密码 |");toxy(45,21);printf("| |");toxy(45,22);printf("| 8.退出软件 |");toxy(45,23);printf("--------------------------");t=getch();switch(t){case '1':input_information();break;case '2':amend_information();break;case '3':delete_information();break;case '4':print_information();break;case '5':find_information();break;case '6':statistics_information();break;case '7':amend_password();break;case '8':over();break;default :break;}}while(1);//永远为真 } passw ff()//将文件中的内容读入链表，返回值为表头地址 {FILE *fp; //文件指针 passw password_head=NULL;fp=fopen("password","a+"); //以追加和读的方式打开名为password的文件 if(fp==NULL){printf("cannot open file"); }//printf("%p\n",password_head);password_head=(passw)malloc(M); //申请空间 strcpy(password_head->password," "); //初始化密码 //printf("%s\n",password_head);fread(password_head,M,1,fp); fclose(fp); //关闭文件 return password_head; //返回值表头地址 }void signin() //登录 {do{system("cls");color(13); //好看的颜色 passw p,head;int i=0;char k;head=ff(); //调用函数，返回值为表头地址 p=head;//printf("%s\n",p->password);//printf("%p\n",p);char str[]="000000"; //初始密码 toxy(45,6);printf("-----学生档案管理系统-----");toxy(45,8);printf("请输入管理者密码：");for(;;) //此处为输入密码不回显操作 {k=getch(); //输入k if(k=='\r')//如果输入k为回车，则跳出循环 {break;}else if(k=='\b') //如果输入k为删除键 {if(i>0) //如若密码还没完全删除 {printf("\b");printf(" ");printf("\b");i--;}}else //如果输入的k既不是删除键，也不是回车键 {_password[i]=k; //把k的值赋给_password[i]; printf("*");//输出*号，保护用户隐私 i++; //密码位数加1 }}_password[i]='\0';if(strcmp(p->password," ")==0) //判断程序是否是第一次运行，{strcpy(p->password,str);//如果是，则将初始密码000000赋值给p->password save_password(p); //保存p }if(strcmp(head->password,_password)==0) //判断密码是否输入正确 {system("cls");toxy(45,8);printf("正在登陆....");Sleep(500);menu();}else{toxy(45,10);printf("密码错误！");Sleep(500);}}while(1);}void amend_password() //修改密码 {system("cls"); //清屏 color(12); //看着舒服的颜色 passw p,head; //隐藏光标，看着更舒服 head=ff();do{ system("cls"); //清屏p=head;char password[18],newpassword[18],t,k;int i=0;toxy(45,6);//将光标移动到坐标为（50，5）的位置 printf("学生档案管理系统");toxy(48,8);printf("修改密码");toxy(45,10);printf("请输入旧密码：");for(;;) //此处为输入密码不回显操作 {k=getch(); //输入k if(k=='\r')//如果输入k为回车，则跳出循环 {break;}else if(k=='\b') //如果输入k为删除键 {if(i>0) //如若密码还没完全删除 {printf("\b");printf(" ");printf("\b");i--;}}else //如果输入的k既不是删除键，也不是回车键 {password[i]=k; //把k的值赋给_password[i]; printf("*");//输出*号，保护用户隐私 i++; //密码位数加1 }}password[i]='\0';i=0;toxy(45,12);printf("请输入新密码：");for(;;) //此处为输入密码不回显操作 {k=getch(); //输入k if(k=='\r')//如果输入k为回车，则跳出循环 {break;}else if(k=='\b') //如果输入k为删除键 {if(i>0) //如若密码还没完全删除 {printf("\b");printf(" ");printf("\b");i--;}}else //如果输入的k既不是删除键，也不是回车键 {newpassword[i]=k; //把k的值赋给_password[i]; printf("*");//输出*号，保护用户隐私 i++; //密码位数加1 }}newpassword[i]='\0';if(p!=NULL) //如果p不为空 {if(strcmp(p->password,password)==0)//如果旧密码输入正确 {strcpy(p->password,newpassword); //将旧密码改为新密码 break;//跳出循环 }else //如果旧密码输入错误 {system("cls");toxy(46,8);printf("--------------------------");toxy(46,9);printf("| |");toxy(46,10);printf("| 密码错误！是否继续？ |");toxy(46,11);printf("| |");toxy(46,12);printf("| 1.是 2.否 |");toxy(46,13);printf("| |");toxy(46,14);printf("--------------------------");while(1){t=getch();//输入t if(t=='1'){system("cls");break;}else if(t=='2')menu();}}}}while(1); save_password(p);//永远为真 system("cls");toxy(45,10);printf("修改成功！即将返回主菜单...."); Sleep(500);menu();} void save_password(passw p) //将p所指向的内容保存到文件中 {FILE *fp;fp=fopen("password","w"); //以只写的方式打开名为password的文件 if(fp==NULL){printf("cannot open file"); }if(fwrite(p,M,1,fp)!=1) //将p所指向的一段大小为M的内容写入fp所指向的文件中 {printf("write error!"); }fclose(fp); //关闭文件 }Stup ss()//将文件中的内容读出到链表中 {FILE *fp; //文件指针 Stup head=NULL,p,p1,pr=NULL;int n=0;fp=fopen("student","ab+");if(fp==NULL){printf("cannot open file");}while(!feof(fp))// feof函数可以检查文件读写位置标志是否移动到文件末尾，feof(fp)检查fp所指向的文件是否结束，如果是{//则函数值为真，否则为假，即“!feof(fp)”为真，在while循环中检查 “!feof(fp)”为真，就执行循环体n++;p=(Stup)malloc(N); //向内存申请一段空间fread(p,N,1,fp); //从fp所指向的文件读入1个大小为M的数据，存储到p所指向的空间中 if(n==1){head=p;p1=p;}else{pr=p1;p1->next=p;p1=p;}}if(pr!=NULL)pr->next=NULL;else if(pr==NULL)head=NULL;fclose(fp);return head;}void input_information()//录入信息 {system("cls");color(15);int i=0,n;Stup p;toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("信息录入");toxy(45,8);printf("你需要录入多少个学生的信息？请输入：");scanf("%d",&n);getchar();while(i!=n){system("cls");i++;p=(Stup)malloc(N);toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("信息录入");toxy(45,8);printf("请输入学生学号：");gets(p->number);toxy(45,9);printf("请输入学生姓名：");gets(p->name);toxy(45,10);printf("请输入学生性别(男或女)：");gets(p->sex);toxy(45,11);printf("请输入学生出生日期（年月日，以空格隔开）：");scanf("%d%d%d",&p->birtnday.year,&p->birtnday.month,&p->birtnday.day);getchar();toxy(45,12);printf("请输入c语言成绩：");scanf("%f",&p->score.c_language);getchar();toxy(45,13);printf("请输入高数成绩：");scanf("%f",&p->score.math);getchar();toxy(45,14);printf("请输入俄语成绩：");scanf("%f",&p->score.Russian);getchar();toxy(45,15);printf("请输入俄语听力成绩：");scanf("%f",&p->score.Russian_hearing);getchar();toxy(45,16);printf("请输入专业导论成绩：");scanf("%f",&p->score.professional);getchar();toxy(45,17);printf("请输入政治成绩：");scanf("%f",&p->score.politics);getchar();toxy(45,18);printf("请输入备注：");gets(p->remark);save_information(p);}toxy(48,19);printf("录入完毕！按任意键返回主菜单！");getch();}void amend_information() //修改信息 {system("cls"); //清屏 color(11);Stup p,head;FILE *fp;int i=15,j=0,c; char number[10]; //学号char name[10],_name[10]; //姓名char sex[2]; //性别int year; //年int month; //月int day; //日float c_language; //c语言float math; //高数float Russian;//俄语float Russian_hearing; //俄语听力float professional; //专业导论float politics; //政治 char remark[100]; //备注char ch,t;head=ss();p=head;do{system("cls");toxy(45,6);printf("-----学生档案管理系统-----");toxy(45,7);printf("修改信息");toxy(40,9);printf("请输入您要修改的信息：");gets(_name);toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");i=11;j=0;while(p!=NULL) //将每个结点的p->num都赋为0，以免后面数据干扰 {p->num=0;p=p->next;}p=head;//重新让p指向head while(p!=NULL){if(strcmp(p->name,_name)==0){toxy(18,i);j++;if(p->birtnday.month<10&&p->birtnday.day<10) printf("%d.%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%d.%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%d.%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%d.%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);i++;p->num=j;//给p->num赋值，即给满足搜索要求的结点编号 }p=p->next;}if(j==0) //如果j=0，即没有进入前面的搜索循环，也就是没有找到相应的信息 { toxy(50,i);printf("没有找到相应的信息！(按0返回，按1重新搜索)");while(1)//死循环是为了防止除0和1的其他按键干扰 {ch=getch();if(ch=='0'){menu();break;}else if(ch=='1'){break;}}if(ch=='1')//如果输入的ch等于1，则结束本次循环 continue;}while(1){toxy(50,i);printf("请输入您要修改的信息的标号：");scanf("%d",&c);getchar();i++; if(c<=j) //如果c<=j，即输入正确 break;else if(c>j) //否则，输入错误 {toxy(50,i);printf("没有找到您所要修改的信息，请重新输入！");i++;Sleep(500);//暂停0.5秒 }}p=head;//让p重新指向head，即第一个结点 while(p!=NULL&&p->num!=c) //遍历链表，寻找满足要求的结点 {p=p->next;}if(p!=NULL)//如果寻找成功，进入修改部分 {system("cls"); //清屏 toxy(45,8);printf("请输入学生学号：");gets(number);strcpy(p->number,number);toxy(45,9);printf("请输入学生姓名：");gets(name);strcpy(p->name,name);toxy(45,10);printf("请输入学生性别(男或女)：");gets(sex);strcpy(p->sex,sex);toxy(45,11);printf("请输入学生出生日期（年月日，以空格隔开）：");scanf("%d%d%d",&year,&month,&day);getchar();p->birtnday.year=year;p->birtnday.month=month;p->birtnday.day=day;toxy(45,12);printf("请输入c语言成绩：");scanf("%f",&c_language);getchar();p->score.c_language=c_language;toxy(45,13);printf("请输入高数成绩：");scanf("%f",&math);getchar();p->score.math=math;toxy(45,14);printf("请输入俄语成绩：");scanf("%f",&Russian);getchar();p->score.Russian=Russian;toxy(45,15);printf("请输入俄语听力成绩：");scanf("%f",&Russian_hearing);getchar();p->score.Russian_hearing=Russian_hearing;toxy(45,16);printf("请输入专业导论成绩：");scanf("%f",&professional);getchar();p->score.professional=professional;toxy(45,17);printf("请输入政治成绩：");scanf("%f",&politics);getchar();p->score.politics=politics;toxy(45,18);printf("请输入备注：");gets(remark);strcpy(p->remark,remark);toxy(46,16);printf("-------------------------");toxy(46,17);printf("| |");toxy(46,18);printf("|是否确认修改？ |");toxy(46,19);printf("| 1.确认 2.取消 |");toxy(46,20);printf("| |");toxy(46,21);printf("-------------------------");while(1) //死循环为防止其他按键干扰 {t=getch();if(t=='1')break;else if(t=='2'){menu();}} if(t=='1') //如果t等于1，则跳出循环 {break; }}}while(1);p=head;//p重新指向头节点 system("cls");toxy(44,12);printf("正在修改....");fp=fopen("student","wb"); //打开文件的同时清除文件内的内容 if(fp==NULL){printf("cannot open file");}while(p!=NULL){if(fwrite(p,N,1,fp)!=1) //将p所指向的内容存入fp所指向的文件中 {printf("file write error\n");}p=p->next;}fclose(fp);//关闭文件 Sleep(500);system("cls");toxy(44,12);printf("修改成功！正在自动跳转到主菜单....");Sleep(500);menu();}void delete_information() //删除信息 {do{system("cls");color(12);char t;toxy(45,6);printf("-----学生档案管理系统-----");toxy(48,7);printf("信息删除");toxy(45,9);printf("1) 按学号查询删除");toxy(45,11);printf("2) 按姓名查询删除");toxy(48,13);printf("按0返回主菜单");t=getch();switch(t){case '0':menu();break;case '1':delete_number();break;case '2':delete_name();break;default :break;}}while(1);}void delete_number() //按学号查询删除 {do{system("cls");color(10);char number[10];char t,c;int i=11,j=0;Stup head,p,pre=NULL ;FILE *fp;toxy(48,9);printf("请输入你要删除的学生的学号：");gets(number);head=ss();p=head;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");while(p!=NULL&&strcmp(p->number,number)!=0){pre=p;p=p->next;}if(p!=NULL){toxy(20,i);if(p->birtnday.month<10&&p->birtnday.day<10) printf("%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);toxy(45,i+1);printf("1.删除 2.取消");while(1){c=getch();if(c=='1')break;else if(c=='2')delete_number();}if(pre==NULL)head=head->next;elsepre->next=p->next;system("cls"); toxy(45,10);printf("正在删除....");p=head->next;fp=fopen("student","wb");if(fp==NULL){printf("cannot open file"); }if(fwrite(head,N,1,fp)!=1){printf("write error");} fclose(fp);fp=fopen("student","ab");if(fp==NULL){printf("cannot open file"); }while(p!=NULL){if(fwrite(p,N,1,fp)!=1){printf("write error");} p=p->next;}fclose(fp);Sleep(500);system("cls");toxy(45,10);printf("删除成功！正在返回....");Sleep(500);delete_information(); }else if(p==NULL){toxy(48,i);printf("您输入的信息不存在！按0返回主菜单，1返回上一级菜单，2重新查找");while(1){t=getch();if(t=='0'){menu();}else if(t=='1'){delete_information();}else if(t=='2'){break;}}}free(p);}while(1);}void delete_name() //按姓名查询删除 {do{system("cls");color(10);char name[10];char t,c;int i=11,j=0,key;Stup head,p,pre;FILE *fp;toxy(48,9);printf("请输入你要删除的学生的姓名：");gets(name);head=ss();p=head;while(p!=NULL){p->num=0;p=p->next;}p=head;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");while(p!=NULL){if(strcmp(p->name,name)==0){toxy(18,i);j++;if(p->birtnday.month<10&&p->birtnday.day<10) printf("%d.%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%d.%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%d.%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%d.%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",j,p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);i++;p->num=j;}p=p->next;}if(j==0){toxy(48,i);printf("您输入的信息不存在！按0返回主菜单，1返回上一级菜单，2重新查找");while(1){t=getch();if(t=='0'){menu();}else if(t=='1'){delete_information();}else if(t=='2'){break;}}if(t=='2')continue;}while(1){toxy(50,i);printf("请输入您要删除的信息的标号：");scanf("%d",&key);getchar();i++;if(key<=j) //如果c<=j，即输入正确 break;else if(key>j) //否则，输入错误 {toxy(50,i);printf("没有找到您所要删除的信息，请重新输入！");i++;Sleep(500);//暂停0.5秒 }}toxy(46,16);printf("-------------------------");toxy(46,17);printf("| |");toxy(46,18);printf("| 确认删除？|");toxy(46,19);printf("| 1.确认 2.取消 |");toxy(46,20);printf("| |");toxy(46,21);printf("-------------------------");while(1){p=head;pre=NULL;c=getch();if(c=='1'){while(p!=NULL&&p->num!=key){pre=p;p=p->next;}if(p!=NULL){if(pre==NULL)head=head->next;elsepre->next=p->next;}free(p);break;}else if(c=='2')delete_number();}system("cls"); toxy(45,10);printf("正在删除....");fp=fopen("student","wb");if(fp==NULL){printf("cannot open file"); }if(head!=NULL&&fwrite(head,N,1,fp)!=1){printf("write error");} fclose(fp);if(head!=NULL){p=head->next;fp=fopen("student","ab");if(fp==NULL){printf("cannot open file"); }while(p!=NULL){if(fwrite(p,N,1,fp)!=1){printf("write error");} p=p->next;}fclose(fp);}Sleep(500);system("cls");toxy(45,10);printf("删除成功！正在返回....");Sleep(500);delete_information(); }while(1);}void print_information() //输出信息 {system("cls");color(11);Stup head,p;int i=11;head=ss();p=head;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");while(p!=NULL){toxy(20,i);if(p->birtnday.month<10&&p->birtnday.day<10) printf("%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);i++;p=p->next;}toxy(45,i);printf("按任意键返回主菜单！");getch();}void find_information() //查找信息 { do{system("cls");char t;color(10);toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("查找信息");toxy(48,9);printf("1) 学号查询");toxy(48,11);printf("2) 姓名查询");toxy(48,13);printf("按0返回主菜单");t=getch();switch(t){case '0':menu();break;case '1':find_number_information();break;case '2':find_name_information();break;default :break;}}while(1);}void find_number_information() //按学号查找 {do{system("cls");color(10);char number[10];char t;int i=11,j=0;Stup head,p;toxy(48,9);printf("请输入你要查找的学生的学号：");gets(number);head=ss();p=head;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");while(p!=NULL){if(strcmp(p->number,number)==0){toxy(20,i);if(p->birtnday.month<10&&p->birtnday.day<10) printf("%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);i++;j++;}p=p->next;}if(j==0){toxy(48,i);printf("您输入的信息不存在！");}toxy(48,i+1);printf("按0继续查找，按1返回");while(1){t=getch();if(t=='0'){break;}else if(t=='1'){find_information();}} }while(1);}void find_name_information() //按姓名查找 {do{system("cls");color(10);char name[10];char t;int i=11,j=0;Stup head,p;toxy(48,9);printf("请输入你要查找的学生的姓名：");gets(name);head=ss();p=head;toxy(45,6);printf("-----学生档案管理系统-----"); toxy(20,8);printf("----------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别 出生--日期c语言 高 数 俄 语 俄语听力 专业导论 政 治 备注");toxy(20,10);printf("----------------------------------------------------------------------------------------------");while(p!=NULL){if(strcmp(p->name,name)==0){toxy(20,i);if(p->birtnday.month<10&&p->birtnday.day<10) printf("%s %s %s%d.0%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month<10&&p->birtnday.day>=10)printf("%s %s %s%d.0%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);else if(p->birtnday.month>=10&&p->birtnday.day<10)printf("%s %s %s%d.%d.0%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);elseprintf("%s %s %s%d.%d.%d%.2f %.2f %.2f%.2f%.2f%.2f %s\n",p->number,p->name,p->sex,p->birtnday.year,p->birtnday.month,p->birtnday.day,p->score.c_language,p->score.math,p->score.Russian,p->score.Russian_hearing,p->score.professional,p->score.politics,p->remark);i++;j++;}p=p->next;}if(j==0){toxy(48,i);printf("您输入的信息不存在！");}toxy(48,i+1);printf("按0继续查找，按1返回");while(1){t=getch();if(t=='0'){break;}else if(t=='1'){find_information();}} }while(1);}void assignment() //将链表的内容赋值给一个结构体数组 {Stup head,p;head=ss();p=head;int i=0;while(p!=NULL){strcpy(total[i].number,p->number);strcpy(total[i].name,p->name);strcpy(total[i].sex,p->sex);total[i].c_language=p->score.c_language;total[i].math=p->score.math;total[i].Russian=p->score.Russian;total[i].Russian_hearing=p->score.Russian_hearing;total[i].professional=p->score.professional;total[i].politics=p->score.politics;total[i].sum=total[i].c_language+total[i].math+total[i].Russian+total[i].Russian_hearing+total[i].professional+total[i].politics;i++;p=p->next;}len=i;}void statistics_information() //数据统计 {do{system("cls");color(6);char t;toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("数据统计");toxy(48,9);printf("1) 平均分");toxy(48,11);printf("2) 总分排名");toxy(48,13);printf("3) 各学科不及格人数");toxy(48,15);printf("4) 各科成绩分布分析"); toxy(45,17);printf("按0返回主菜单");t=getch();switch(t){case '0':menu();break;case '1':average_score();break;case '2':total_score_ranked();break;case '3':fail_numbers();break;case '4':grade_table();break;default :break;}}while(1);}void average_score() //平均分 {system("cls");color(10);float sum_c=0,sum_math=0,sum_Russian=0,sum_Russian_hearing=0,sum_professional=0,sum_politics=0;float average_c,average_math,average_Russian,average_Russian_hearing,average_professional,average_politics;int i=0;Stup head,p;head=ss();p=head;while(p!=NULL){sum_c+=p->score.c_language;sum_math+=p->score.math;sum_Russian+=p->score.Russian;sum_Russian_hearing+=p->score.Russian_hearing;sum_professional+=p->score.professional;sum_politics+=p->score.politics;p=p->next;i++;}average_c=sum_c*1.0/i;average_math=sum_math*1.0/i;average_Russian=sum_Russian*1.0/i;average_Russian_hearing=sum_Russian_hearing*1.0/i;average_professional=sum_professional*1.0/i;average_politics=sum_politics*1.0/i;toxy(45,6);printf("-----学生档案管理系统-----");toxy(48,7);printf("各学科平均分");toxy(30,8);printf("----------------------------------------------------");toxy(30,9);printf(" c语言 高数 俄语 俄语听力 专业导论 政治");toxy(30,10);printf("----------------------------------------------------");toxy(30,11);printf(" %.2f %.2f %.2f %.2f%.2f %.2f",average_c,average_math,average_Russian,average_Russian_hearing,average_professional,average_politics);toxy(45,12);printf("总人数为：%d",i);toxy(50,13);printf("按任意键返回主菜单");getch(); }void total_score_ranked() //总分排名 {system("cls");color(10);assignment();int j,k=11;qsort(total,len,sizeof(Total),cmp); //快速排序 toxy(45,6);printf("-----学生档案管理系统-----");toxy(48,7);printf("总分排名");toxy(20,8);printf("--------------------------------------------------------------------------------------------");toxy(20,9);printf("学号 姓名 性别c语言 高 数 俄 语 俄语听力 专业导论 政 治总分 名次");toxy(20,10);printf("--------------------------------------------------------------------------------------------");for(j=0;j<len;j++){toxy(20,k);printf("%s%s %s%.2f %.2f %.2f %.2f%.2f%.2f %.2f %d\n",total[j].number,total[j].name,total[j].sex,total[j].c_language,total[j].math,total[j].Russian,total[j].Russian_hearing,total[j].professional,total[j].politics,total[j].sum,j+1);k++;}toxy(45,k);printf("按任意键返回主菜单");getch();}void fail_numbers() //各科不及格人数 {system("cls");color(10);int fail_c=0,fail_math=0,fail_Russian=0,fail_Russian_hearing=0,fail_professional=0,fail_politics=0; int i;assignment();for(i=0;i<len;i++){if(total[i].c_language<60)fail_c++;if(total[i].math<60)fail_math++;if(total[i].Russian<60)fail_Russian++;if(total[i].Russian_hearing<60)fail_Russian_hearing++;if(total[i].professional<60)fail_professional++;if(total[i].politics<60)fail_politics++;}toxy(45,6);printf("-----学生档案管理系统-----");toxy(48,7);printf("各科不及格人数");toxy(30,8);printf("-----------------------------------------------------");toxy(30,9);printf("c语言 高 数 俄 语 俄语听力 专业导论 政 治");toxy(30,10);printf("-----------------------------------------------------");toxy(30,11);printf("%-10d%-10d%-10d%-10d%-10d%-10d",fail_c,fail_math,fail_Russian,fail_Russian_hearing,fail_professional,fail_politics);toxy(45,12);printf("请按任意键返回");getch();}void grade_table() //各科各分数段人数信息统计 {do{system("cls");color(10);char t;toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("各分数段统计");toxy(48,9);printf("(1) c语言");toxy(48,11);printf("(2) 高等数学");toxy(48,13);printf("(3) 俄语");toxy(48,15);printf("(4) 俄语听力");toxy(48,17);printf("(5) 专业导论");toxy(48,19);printf("(6) 政治");toxy(48,21);printf("按0返回上一级");t=getch();switch(t){case '0':statistics_information();break;case '1':analyze_c();break;case '2':analyze_math();break;case '3':analyze_Russian();break;case '4':analyze_Russian_hearing();break;case '5':analyze_professional();break;case '6':analyze_politics();break;default :break;}}while(1);}void analyze_c() //c语言 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp1); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].c_language/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("c语言--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].c_language);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].c_language);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].c_language);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].c_language);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].c_language);k++;}toxy(48,k);printf("按任意键返回上一级");getch();} void analyze_math() //高数 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp2); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].math/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("高数--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].math);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].math);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].math);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].math);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].math);k++;}toxy(48,k);printf("按任意键返回上一级");getch();}void analyze_Russian() //俄语 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp3); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].Russian/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("俄语--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian);k++;}toxy(48,k);printf("按任意键返回上一级");getch();}void analyze_Russian_hearing() //俄语听力 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp4); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].Russian_hearing/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("俄语听力--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian_hearing);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian_hearing);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian_hearing);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian_hearing);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].Russian_hearing);k++;}toxy(48,k);printf("按任意键返回上一级");getch();}void analyze_professional() //专业导论 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp5); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].professional/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("专业导论--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].professional);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].professional);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].professional);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].professional);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].professional);k++;}toxy(48,k);printf("按任意键返回上一级");getch();}void analyze_politics() //政治 {system("cls");color(11);assignment();qsort(total,len,sizeof(Total),cmp6); //快速排序 int numbers_A=0,numbers_B=0,numbers_C=0,numbers_D=0,numbers_E=0;int i,j,k=12;for(i=0;i<len;i++){switch((int)(total[i].politics/10)){case 10:case 9:numbers_A++;break;case 8:numbers_B++;break;case 7:numbers_C++;break;case 6:numbers_D++;break;default:numbers_E++;break;}}toxy(45,6);printf("-----学生档案管理系统-----");toxy(50,7);printf("政治--各分数段统计");toxy(36,9);printf("-------------------------------------------------");toxy(36,10);printf("学号 姓名 性别 分数");toxy(36,11);printf("-------------------------------------------------");toxy(18,12);printf("90~100人数为：%d",numbers_A);for(j=0;j<numbers_A;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].politics);k++;}k++;toxy(18,k);printf("80~90人数为：%d",numbers_B);for(j=numbers_A;j<numbers_A+numbers_B;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].politics);k++;}k++;toxy(18,k);printf("70~80人数为：%d",numbers_C);for(j=numbers_A+numbers_B;j<numbers_A+numbers_B+numbers_C;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].politics);k++;}k++;toxy(18,k);printf("60~70人数为：%d",numbers_D);for(j=numbers_A+numbers_B+numbers_C;j<numbers_A+numbers_B+numbers_C+numbers_D;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].politics);k++;}k++;toxy(18,k);printf("0~60人数为：%d",numbers_E);for(j=numbers_A+numbers_B+numbers_C+numbers_D;j<len;j++){toxy(36,k);printf("%s %s %s %.2f",total[j].number,total[j].name,total[j].sex,total[j].politics);k++;}toxy(48,k);printf("按任意键返回上一级");getch();}void save_information(Stup p) //将p所指向的内容写入文件中 {FILE *fp;fp=fopen("student","ab+");if(fp==NULL){printf("cannot open file"); }if(fwrite(p,N,1,fp)!=1){printf("write error");} fclose(fp);}void over() //退出软件 {char t;toxy(45,11);printf("--------------------------");toxy(45,12);printf("| 您确定要退出吗？ |");toxy(45,14);printf("| 1.确定2.取消 |");toxy(45,15);printf("--------------------------");while(1){t=getch(); //输入tswitch(t){case '1':system("cls");color(6);toxy(48,10);printf("正在安全退出....");Sleep(1000);//暂停1秒 system("cls");color(8);toxy(48,10);printf("已安全退出软件");toxy(48,12);printf("谢谢使用！");toxy(48,14);printf("by-by^_^");free(password_head);exit(0); break; //终止程序 case '2':menu(); break; //调用函数，进入菜单 default :break;}}}main() //简单明了的主函数^_^ {HideCursor();signin(); //登录界面 }