今天小编给大家分享一下C语言如何实现学生档案管理系统的相关知识点，内容详细，逻辑清晰，相信大部分人都还太了解这方面的知识，所以分享这篇文章给大家参考一下，希望大家阅读完这篇文章后有所收获，下面我们一起来了解一下吧。
#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 1000 struct 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); else printf("%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); else printf("%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; else pre->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); else printf("%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; else pre->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); else printf("%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); else printf("%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); else printf("%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t switch(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 }以上就是“C语言如何实现学生档案管理系统”这篇文章的所有内容，感谢各位的阅读！相信大家阅读完这篇文章都有很大的收获，小编每天都会为大家更新不同的知识，如果还想学习更多的知识，请关注编程网行业资讯频道。
