学生成绩管理系统

学生成绩管理系统

1）至少能够管理100位同学的个人信息和成绩信息，个人信息和成绩需要有纠错功能。

2）个人信息包括：学号（53开头的实际学号8位），姓名（至少可以保存4个汉字），性别，民族，出生年月（年份为4位数字，月份为2位数字），行政职务（班长、学委、无）。

3）成绩信息包括：5门课程和总成绩的相关信息。5门课程包括：高级语言程序设计、高级语言程序设计实验、高级语言课程设计、面向对象程序设计、面向对象程序设计实验；每门课程的相关信息包括：课程名、课程学时、课程学分、所得成绩。总成绩的相关信息包括：平均成绩、加权平均成绩。

注：要明确区别百分制和五分制的成绩；在折算平均成绩和加权平均成绩时，五分制成绩中优秀、良好、中等、及格、不及格分别对应百分制成绩的95、85、75、65、0；平均成绩不考虑学分因素，为每门课程的算术平均值；加权平均成绩需要考虑学分因素，为每门课程的加权平均值。

一共有4个cpp
Student.cpp
Main.cpp
file1.cpp
file2.cpp

//Student.h#ifndef STUDENT_H_INCLUDED#define STUDENT_H_INCLUDED#include<cstdio>#include<cstring>#include<cstdlib>#define WrongMark 0#define N 20enum POSITION {Monitor,Study_Commissar,None,Undefined_Position};enum GENDER {Male,Female,Undefined_Gender};struct Course{    char  Name[20];    int   Time;    int   Credit;};struct Student{    int    ID;    char   Name[N];    bool   Have_Name;   //在有Name情况下Have_name为真，反之为假。 Name项不具备纠错功能    GENDER Gender;      //0为男，1为女，2为出错    char   Nationality[N];    bool   Have_Nationality;//在有Nationality情况下Have_Nationality为真，反之为假。 Nationality项不具备纠错功能    int    Birth;       //-1为出错，反之为6位的出生年月(年4位月2位)    float  Average;    float  Weighted_Average;    POSITION  Position; //0为班长，1为学委，2为无职务，3为出错    int Mark[5];        //出错时当-1算    Student* Next;};extern Course Cour[5];extern int Input_From_Screen,Have_Open_Input;extern FILE *File_Input,*File_Output;extern Student *tail,*head;extern bool ID_exist[10002];extern bool Monitor_exist[102];extern bool Study_Commissar_exist[102];//-----------------------------------void prepare();void Start2();void Start3();//--------------------------------void Init(); //【增加】void Modify(); //【修改】void Delete(); //【删除】void Store_To_File(); //【存储】void Print_Personal_Information();//【输出同学的个人信息】void Compare_Two_Student();//【同行输出两个学生信息】void Sort(Student**, int);void PrintClassGrade(Student**,int);void PrintClassCourseGrade(Student**,int,int);void Print_Search_Mark(int,Student**);void Print_Excellent_Mark(Student**, int);void Print_Mark2(Student*,int);void Print_Mark1(Student*,int);void Print_Total_Mark(Student**, int);//-------------------------------void Delete_Student_Information(Student*,int);//only from screenvoid Alter_Student_Information(Student*,int); //only from screenvoid Get_New_Student_Information(Student*,int);void Print_Student_Information(Student*,int);void Calculate( Student* ) ;//计算单个同学成绩//--------------------------------int init_ID();void init_Name(Student*);void init_Gender(Student*);void init_Nationality(Student*);void init_Birth(Student*);void init_Position(Student*,int);void init_ALL_Mark(Student*);int find_Related_Course();void init_One_Mark(Student*);void init_One_Specific_Mark(Student*,int);void delete_Name(Student*);void delete_Gender(Student*);void delete_Nationality(Student*);void delete_Birth(Student*);void delete_Position(Student*,int);void delete_One_Mark(Student*);Student* find_Student(int);void Print_Five(int mark);#endif // STUDENT_H_INCLUDED

//main.cpp#include"Student.h"int Input_From_Screen;int Have_Open_Input;FILE *File_Input,*File_Output;Student *tail=NULL,*head=NULL;Course Cour[5];bool ID_exist[10002];bool Monitor_exist[102];bool Study_Commissar_exist[102];int main(){    prepare();    Start2();    return 0;}void prepare(){        printf("\n\n\n");        printf("\t********************************************************\n");        printf("\t*                                                      *\n");        printf("\t*                                                      *\n");        printf("\t*                                                      *\n");printf("\t*              亲 欢迎使用学生管理系统！！             *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");printf("\t*                  希望您玩得愉快！！                  *\n");printf("\t*                                                      *\n");printf("\t*                                                      *\n");        printf("\t********************************************************\n");    for (int i=1;i<=400000000;i++);       Input_From_Screen=1;       if (File_Input=fopen("D:\in.txt","r")) Have_Open_Input=1;             else {printf("读入文件未成功打开\n");                   Have_Open_Input=0;                  }       strcpy(Cour[0].Name,"高级语言程序设计");       strcpy(Cour[1].Name,"高级语言程序设计实验");       strcpy(Cour[2].Name,"高级语言课程设计");       strcpy(Cour[3].Name,"面向对象程序设计");       strcpy(Cour[4].Name,"面向对象程序设计实验");       Cour[0].Time=64;       Cour[1].Time=32;       Cour[2].Time=32;       Cour[3].Time=64;       Cour[4].Time=32;       Cour[0].Credit=4;       Cour[1].Credit=1;       Cour[2].Credit=1;       Cour[3].Credit=4;       Cour[4].Credit=1;       memset(ID_exist,0,sizeof(ID_exist));       memset(Monitor_exist,0,sizeof(Monitor_exist));       memset(Study_Commissar_exist,0,sizeof(Study_Commissar_exist));}void Start2(){   system("cls");    while (1)    {         printf("\t***********************************************************\n");         printf("\t*                                                         *\n");         printf("\t*       请输入您需要的服务项目！                          *\n");         printf("\t*          1 增加新同学的信息                             *\n");         printf("\t*          2 修改同学信息                                 *\n");         printf("\t*          3 删除同学信息                                 *\n");         printf("\t*          4 打印所有或部分同学的成绩信息                 *\n");         printf("\t*          5 打印某同学的个人信息                         *\n");         printf("\t*          6 存储信息到文件                               *\n");         printf("\t*          0 退出                                         *\n");         printf("\t*                                                         *\n");         printf("\t***********************************************************\n");    int result2;    scanf("%d",&result2);    system("cls");    int exit_flag=0;    switch(result2)     {         case 1:Init();break;         case 2:Modify();break;         case 3:Delete();break;         case 4:Start3();break;         case 5:Print_Personal_Information();break;         case 6:Store_To_File();break;         case 0:exit_flag=1;break;     }    if (exit_flag==1)         {            system("cls");            printf("\t\t*************************************\n");            printf("\t\t*                                   *\n");            printf("\t\t*                                   *\n");            printf("\t\t*      程序结束,感谢使用 ^_^        *\n");            printf("\t\t*        欢迎下次使用！             *\n");            printf("\t\t*                                   *\n");            printf("\t\t*                                   *\n");            printf("\t\t*************************************\n");         }    }}void Start3(){    system("cls");    while(1)    {     printf("\t***********************************************************\n");     printf("\t*                                                         *\n");     printf("\t*       请输入您需要的服务项目！                          *\n");     printf("\t*          1 按照某位同学的学号或者姓名查找打印成绩       *\n");     printf("\t*          2 打印某班成绩                                 *\n");     printf("\t*          3 按照某科打印某班成绩                         *\n");     printf("\t*          4 打印同学总成绩                               *\n");     printf("\t*          5 打印优秀同学成绩                             *\n");     printf("\t*          6 同行输出两个同学信息                         *\n");     printf("\t*          0 退出                                         *\n");     printf("\t*                                                         *\n");     printf("\t***********************************************************\n");     int result3;     int exit_flage=0;     scanf("%d",&result3);     system("cls");     switch(result3)     {         case 1: printf("请输入查找方式 0按学号1 按照姓名");                 int result3_1;                 scanf("%d",&result3_1);                 Print_Search_Mark(result3_1 ,&head);                 break;         case 2:printf("请输入所需查找的班级");                int result3_2;                scanf("%d",&result3_2);                PrintClassGrade(&head,result3_2 );                break;         case 3:printf("请输入打印的班级和课程名称（0 高程1 高程实验2 课程设计3 面向对象程序设计4 面向对象实验）");                int result3_3_1,result3_3_2;                scanf("%d%d",&result3_3_1,&result3_3_2);                PrintClassCourseGrade(&head, result3_3_1, result3_3_2);                break;         case 4:printf("请输入打印成绩单的方法0按照学号顺序打印1按照平均成绩排名打印2按照加权平均成绩打印");                int result3_4;                scanf("%d",&result3_4);                Print_Total_Mark(&head, result3_4);                break;         case 5:printf("请输入打 印的班级和课程名称（0 高程1 高程实验2 课程设计3 面向对象程序设计4 面向对象实验）");                int result3_5;                scanf("%d",&result3_5);                Print_Excellent_Mark(&head, result3_5);                break;         case 6:Compare_Two_Student();                break;         case 0:exit_flage=1;break;     }     if(exit_flage==1)break;    }}

//file1.cpp#include"Student.h"void Init()  //【增加】{    system("cls");    printf("\t\t*************************************\n");    printf("\t\t*      请选择输出方式               *\n");    printf("\t\t*     输入0：从文件读入             *\n");    printf("\t\t*     输入非0：从屏幕读入           *\n");    printf("\t\t*************************************\n");    scanf("%d",&Input_From_Screen);    system("cls");    if (Input_From_Screen)        {printf("将从屏幕读入，waiting...\n");         while (1)            {   printf("请输入新同学的id\n");                int id=init_ID();                if (id!=-1)  {                                printf("***********************************************************\n");                                printf("*请输入该同学的个人信息:姓名,性别，民族，出生年月,行政职务*\n");                                printf("*以及5门课程的成绩：                                      *\n");                                printf("*            高级语言程序设计                             *\n");                                printf("*            高级语言程序设计实验                         *\n");                                printf("*            高级语言课程设计                             *\n");                                printf("*            面向对象程序设计                             *\n");                                printf("*            面向对象程序设计实验                         *\n");                                printf("*亲！请注意:如果哪一项没有数据，请输入*代替               *\n");                                printf("***********************************************************\n");                                Student* newp=(Student*)malloc(sizeof(Student));                                newp->ID=id;                                Get_New_Student_Information(newp,id);                                if (tail==NULL)                                     {                                      tail=newp;                                      head=tail;                                     }                                else  {tail->Next=newp;                                       tail=newp;                                      }                             }                printf("继续读入新同学请输入1,退出请输入0\n");                int opt=-1;scanf("%d",&opt);system("cls");                while (opt!=0&&opt!=1){printf("您输入的不是０或１,继续读入新同学请输入1,退出请输入0\n");  scanf("%d",&opt);}                if (!opt) break;            }         printf("此次屏幕读入结束，waiting...\n");        }    if (Input_From_Screen==0)        {int have_input=0,should_input;         printf("将从文件读入,waiting...\n");         printf("请输入将读入几个同学的信息\n");         printf("输入n(n为大于0的整数),则读入n个\n");         printf("输入-1,则读到文件尾\n");         scanf("%d",&should_input);         while (1)            {   int id=init_ID();                if (id==-2)  {printf("error---已读到文件尾\n"); break;}                if (id!=-1)  {                                Student* newp=(Student*)malloc(sizeof(Student));                                newp->ID=id;                                Get_New_Student_Information(newp,id);                                if (tail==NULL)                                     {                                      tail=newp;                                      head=tail;                                     }                                else  {tail->Next=newp;                                       tail=newp;                                      }                                have_input++;printf("成功读入第%d个同学的信息,该同学id为%d\n",have_input,id);                               }                if (id==-1)  {printf("由于id错误，接下来读入的相应信息将作废\n");                              Student* newp=(Student*)malloc(sizeof(Student));                              Get_New_Student_Information(newp,0);                             }                if (have_input==should_input) break;            }         printf("在这次文件读入中，共成功读入%d名同学的信息\n",have_input);         printf("此次文件读入结束，waiting...\n");        }    Input_From_Screen=1;    printf("\n\n");  }void Modify() //【修改】{   while (1)            {   printf("请输入要修改信息的同学的id\n");                int id=init_ID(),find_it=0;                for (Student *bl=head;bl!=NULL;bl=bl->Next)                    if (bl->ID==id) {Alter_Student_Information(bl,id);find_it=1; break;}                if (!find_it) printf("额，此id不存在\n");                printf("继续修改其他同学请输入1,退出请输入0\n");                int opt=-1;scanf("%d",&opt);                system("cls");                while (opt!=0&&opt!=1){printf("您输入的不是０或１,继续修改其他同学请输入1,退出请输入0\n"); scanf("%d",&opt);}                if (!opt) break;            }    printf("\n\n");}void Delete() //【删除】{   while (1)            {   printf("请输入要删除信息的同学的id\n");                int id=init_ID(),find_it=0;                for (Student *bl=head;bl!=NULL;bl=bl->Next)                    if (bl->ID==id) {Delete_Student_Information(bl,id);find_it=1; break;}                if (!find_it) printf("额，此id不存在\n");                printf("继续删除其他同学请输入1,退出请输入0\n");                int opt=-1; scanf("%d",&opt);                system("cls");                while (opt!=0&&opt!=1){printf("您输入的不是０或１,继续删除其他同学请输入1,退出请输入0\n"); scanf("%d",&opt);}                if (!opt) break;            }    printf("\n\n");}void Store_To_File()//【存储】{   File_Output=fopen("D:\out.txt","w");    printf("重新打开了输出文件\n");    int num=0;    for (Student *bl=head;bl!=NULL;bl=bl->Next)        {fprintf(File_Output,"%d %s ",bl->ID,bl->Name);              if (bl->Gender==0) fprintf(File_Output,"Male ");         else if (bl->Gender==1) fprintf(File_Output,"Female ");         else fprintf(File_Output,"* ");         fprintf(File_Output,"%s ",bl->Nationality);         fprintf(File_Output,"%d ",bl->Birth);              if (bl->Position==0) fprintf(File_Output,"Monitor ");         else if (bl->Position==1) fprintf(File_Output,"Study_Commissar ");         else if (bl->Position==2) fprintf(File_Output,"None ");         else fprintf(File_Output,"* ");         for (int i=0;i<5;i++)            fprintf(File_Output,"%d ",bl->Mark[i]);         num++;         fprintf(File_Output,"\n");        }    printf("成功写入%d个同学的信息到文件\n",num);}void Print_Personal_Information() //【输出同学的个人信息】{   while (1)            {   system("cls");                printf("请输入要输出信息的同学的id\n");                int id=init_ID(),find_it=0;                for (Student *bl=head;bl!=NULL;bl=bl->Next)                    if (bl->ID==id) {Print_Student_Information(bl,id);find_it=1; break;}                if (!find_it) printf("额，此id不存在\n");                printf("继续输出新同学请输入1,退出请输入0\n");                int opt=-1;  scanf("%d",&opt);                while (opt!=0&&opt!=1){printf("您输入的不是０或１,继续输出其他同学请输入1,退出请输入0\n"); scanf("%d",&opt);}                if (!opt) break;            }    printf("\n\n");}void Compare_Two_Student()//【同行输出两个学生信息】{   int id1,id2;    char ch[N];    Student*stu1,*stu2;    printf("请输入学生1的id\n");    while ((stu1=find_Student(id1=init_ID()))==NULL)  printf("请输入学生1的id\n");    printf("请输入学生2的id\n");    while ((stu2=find_Student(id2=init_ID()))==NULL)  printf("请输入学生2的id\n");    printf("-------------------------\n");    printf("\t学号：         %d\t%d\n",id1,id2);    printf("\t姓名：         %s\t%s\n",stu1->Name,stu2->Name);    for (int i=0;i<5;i++)        printf("\t%s: %d\t%d\n",Cour[i].Name,stu1->Mark[i],stu2->Mark[i]);    printf("-------------------------\n");    printf("按任意键退出程序\n");    scanf("%s",ch);}//计算平均成绩和加权void Calculate(Student *p){    p->Average=(p->Mark[0]+p->Mark[1]+p->Mark[2]+p->Mark[3]+p->Mark[4])/5.0;    p->Weighted_Average=(4*p->Mark[0]+p->Mark[1]+p->Mark[2]+4*p->Mark[3]+p->Mark[4])/11.0;}/********************************************************************************************************************************/bool Is_Integer(char *str){   int len=strlen(str);    for (int i=0;i<len;i++)        if (str[i]<'0'||str[i]>'9') return 0;    return 1;}int init_ID(){   char now_id[N];    int eof;    if (Input_From_Screen) eof=(scanf("%s",now_id)==EOF);                      else eof=(fscanf(File_Input,"%s",now_id)==EOF);    if (eof==1) return -2;    int val;    if (Is_Integer(now_id)&&strlen(now_id)==8&&now_id[0]=='5'&&now_id[1]=='3'&&now_id[2]=='1'&&now_id[3]=='2')            {   val=atoi(now_id);                if (val%100==0) {val=-1;printf("error!---Undefined_id\n");}                else if (val/100%100==0) {val=-1;printf("error!---Undefined_id\n");}            }    else  {val=-1;printf("error!---Undefined_id\n");}    if (ID_exist[val%10000]==1)        {   val=-1;            printf("error!---have beed exist id\n");        }    if (val!=-1)    ID_exist[val%10000]=1;    return val;}void init_Name(Student* st)//读入姓名{   if (Input_From_Screen) scanf("%s",st->Name);else fscanf(File_Input,"%s",st->Name);    st->Have_Name=1;}void init_Gender(Student* st)//读入性别，看是否是Male、Female两者之一，若不是则报错{   char now_gender[N];    if (Input_From_Screen) scanf("%s",now_gender);else fscanf(File_Input,"%s",now_gender);         if (strcmp(now_gender,"Male")==0)          st->Gender=Male;    else if (strcmp(now_gender,"Female")==0)        st->Gender=Female;    else {st->Gender=Undefined_Gender;printf("error!---Undefined_Gender\n");}}void init_Nationality(Student* st)//读入民族{   if (Input_From_Screen) scanf("%s",st->Nationality);else fscanf(File_Input,"%s",st->Nationality);    st->Have_Nationality=1;}void init_Birth(Student* st)//读入出生年月，若出现以下任一种情况则报错(读入不为整数|出生年份大于2013或小于1000|出生月份大于12或小于1){    char now_birth[N];     if (Input_From_Screen) scanf("%s",now_birth);else fscanf(File_Input,"%s",now_birth);     if (Is_Integer(now_birth))            {int val=atoi(now_birth);             int month=val%100;             int year=val/100;             if (year>2013||year<1000||month>12||month<1)                {st->Birth=-1;printf("error!---Undefined_birth\n");}             else st->Birth=val;            }     else  {st->Birth=-1;printf("error!---Undefined_birth\n");}}void init_Position(Student* st,int now_class)//读入职位，看是否为Monitor、Study_Commissar、None三者之一，若不是则报错{    char now_pos[N];     if (Input_From_Screen) scanf("%s",now_pos);else fscanf(File_Input,"%s",now_pos);          if (strcmp(now_pos,"Monitor")==0)                {   if (Monitor_exist[now_class])                        {printf("error---this class Monitor already existed\n");                         st->Position=Undefined_Position;                         return;                        }                    st->Position=Monitor;                    Monitor_exist[now_class]=1;                    printf("！%d班的班长有人当了\n",now_class);                }     else if (strcmp(now_pos,"Study_Commissar")==0)               {                    {   if (Study_Commissar_exist[now_class])                        {printf("error---this class Study_Commissar already existed\n");                         st->Position=Undefined_Position;                         return;                        }                    st->Position=Study_Commissar;                    Study_Commissar_exist[now_class]=1;                    printf("！%d班的学委有人当了\n",now_class);                }               }     else if (strcmp(now_pos,"None")==0)             st->Position=None;     else {st->Position=Undefined_Position;printf("error!---Undefined_Position\n");}}void init_One_Specific_Mark(Student *st,int i)//读入成绩，若读入不为整数或成绩大于100或成绩小于0则报错,并且该门成绩计为-1{     char now_mark[N];     if (Input_From_Screen) scanf("%s",now_mark);else fscanf(File_Input,"%s",now_mark);     if (Cour[i].Credit==4)        {if (Is_Integer(now_mark))            {int val=atoi(now_mark);             if (val>100||val<0)                {st->Mark[i]=WrongMark;printf("error!---Undefined_%s_mark\n",Cour[i].Name);}             else st->Mark[i]=val;            }         else             {st->Mark[i]=WrongMark;printf("error!---Undefined_%s_mark\n",Cour[i].Name);}        }     if (Cour[i].Credit==1)        {         int len=strlen(now_mark);         if (len!=1)   {st->Mark[i]=WrongMark;printf("error!---Undefined_%s_mark\n",Cour[i].Name); return;}         if (now_mark[0]=='A'){st->Mark[i]=95;return;}         if (now_mark[0]=='B'){st->Mark[i]=85;return;}         if (now_mark[0]=='C'){st->Mark[i]=75;return;}         if (now_mark[0]=='D'){st->Mark[i]=65;return;}         if (now_mark[0]=='E'){st->Mark[i]=0; return;}         st->Mark[i]=WrongMark;         printf("error!---Undefined_%s_mark\n",Cour[i].Name);        }}void init_ALL_Mark(Student* st)//依次读入高程、高程实验、高程设计、面向、面向实验五门课的成绩{   for (int i=0;i<5;i++)        init_One_Specific_Mark(st,i);}int find_Related_Course()//找到要修改的课程的对应编号{   char now_cour[N];    if (Input_From_Screen) scanf("%s",now_cour);else fscanf(File_Input,"%s",now_cour);    int i;    for (i=0;i<5;i++)        if (strcmp(Cour[i].Name,now_cour)==0)break;    if (i==5) {printf("error---no related course\n"); return -1;}    return i;}void init_One_Mark(Student* st) //读人某一门成绩，先找到其对应的0-4之间的编号，再具体读入{   int i=find_Related_Course();    if (i!=-1) init_One_Specific_Mark(st,i);}void delete_Name(Student* st){   st->Have_Name=0;}void delete_Gender(Student* st){   st->Gender=Undefined_Gender;}void delete_Nationality(Student* st){   st->Have_Nationality=0;}void delete_Birth(Student* st){   st->Birth=-1;}void delete_Position(Student* st,int now_class){   if (st->Position==Monitor)                 {Monitor_exist[now_class]=0;                  printf("！%d班的班长空出来了\n",now_class);                 }    if (st->Position==Study_Commissar)                 {Study_Commissar_exist[now_class]=0;                  printf("！%d班的学委空出来了\n",now_class);                 }    st->Position=Undefined_Position;}void delete_One_Mark(Student* st)//删除某一门成绩，先找到其对应的0-4之间的编号，再删除{   int i=find_Related_Course();    if (i!=-1)st->Mark[i]=-1;}Student* find_Student(int id){    for (Student *p=head;p!=NULL;p=p->Next)        if (p->ID==id) return p;    Student* p=NULL;    return p;}void Alter_Student_Information(Student* st,int id) //only from screen{   printf("请输入想更改的项目对应的编号\n");    int opt;    while (1)        {   printf("\t姓名>>0   性别>>1   民族>>2   出生年月>>3   职位>>4   成绩>>5   不想修改了>>6\n");            scanf("%d",&opt);            if (opt==0)init_Name(st);            if (opt==1)init_Gender(st);            if (opt==2)init_Nationality(st);            if (opt==3)init_Birth(st);            if (opt==4)init_Position(st,id/100%100);            if (opt==5){init_One_Mark(st);Calculate(st);}            if (opt==6)return;        }}void Delete_Student_Information(Student* st,int id) //only from screen{   printf("请输入想删除的项目对应的编号\n");    int opt;    while (1)        {   printf("\t姓名>>0   性别>>1   民族>>2   出生年月>>3   职位>>4   成绩>>5   不想再删了>>6\n");            scanf("%d",&opt);            if (opt==0)delete_Name(st);            if (opt==1)delete_Gender(st);            if (opt==2)delete_Nationality(st);            if (opt==3)delete_Birth(st);            if (opt==4)delete_Position(st,id/100%100);            if (opt==5){delete_One_Mark(st);Calculate(st);}            if (opt==6)return;        }}void Get_New_Student_Information(Student* st,int id){   init_Name(st);    init_Gender(st);    init_Nationality(st);    init_Birth(st);    init_Position(st,id/100%100);    init_ALL_Mark(st);    Calculate(st);    st->Next=NULL;    printf("亲！如果输入的信息有错误，请在稍后调用修改函数进行修改\n");}void Print_Student_Information(Student* st,int id) //only from screen{   printf("-------------------------\n");    printf("下面将输出编号为%d的同学的个人信息\n",id);    printf("姓名："); if (st->Have_Name) printf("%s\n",st->Name); else printf("未录入\n");    printf("性别："); if (st->Gender==0) printf("男\n");                 else if (st->Gender==1) printf("女\n");                 else printf("未录入\n");    printf("民族："); if (st->Have_Nationality) printf("%s\n",st->Nationality); else printf("未录入\n");    printf("出生年月："); if (st->Birth!=-1) printf("%d\n",st->Birth); else printf("未录入\n");    printf("职位："); if (st->Position==0) printf("班长\n");                 else if (st->Position==1) printf("学委\n");                 else if (st->Position==2) printf("无\n");                 else printf("未录入\n");    printf("下面将输出编号为%d的同学的成绩信息\n",id);    for (int i=0;i<5;i++)         printf("%s :%d\n",Cour[i].Name,st->Mark[i]);    printf("-------------------------\n");    printf("\n\n");}

//File2.cpp#include"Student.h"//排序函数//排序方式 0.按学号排序；1.按姓名排序；2.按Mark1排序；3.按Mark2排序//   4.按Mark3排序；5.按Mark4排序；6.按Mark5排序；7.按平均成绩排序//   8.按加权平均成绩排序void Sort(struct Student** head, int SortStyle){struct Student* First;//有序链表的头指针struct Student* Tail;//有序链表的尾指针struct Student* p_Min;//当前最小的前驱指针struct Student* Min;//当前最小的指针struct Student* p;//当前比较的节点First = NULL;while(*head != NULL)//在链表中找到最小值{for(p = *head, Min = *head; p->Next != NULL; p = p->Next){switch(SortStyle){case 0:if(p->Next->ID < Min->ID)//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 1:if((strcmp(p->Next->Name , Min->Name)) < 0)//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 2:if(p->Next->Mark[0] > Min->Mark[0])//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 3:if(p->Next->Mark[1] > Min->Mark[1])//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 4:if(p->Next->Mark[2] > Min->Mark[2])//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 5:if(p->Next->Mark[3] > Min->Mark[3])//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 6:if(p->Next->Mark[4] > Min->Mark[4])//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 7:if(p->Next->Average > Min->Average)//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;case 8:if(p->Next->Weighted_Average > Min->Weighted_Average)//找到了更小的节点{p_Min = p;//保存当前最小的前驱指针Min = p->Next;//保存当前最小的指针}break;default:printf("科目选择错误,排序失败！\n");}}        //添加到有序链表中        if(First == NULL)//有序表是空表            {First = Min; Tail = Min;            }        else//有序表有节点            {Tail->Next = Min; Tail = Min;//Tail = Tail->Next;            }        //在原表中移除已添加的Min        if(Min == *head)            { (*head) = (*head)->Next;            }        else{    p_Min->Next = Min->Next;}}    //排序结束，得到有序链表，返回if(First != NULL)        {Tail->Next = NULL;        }*head = First;}void Print_Five(int mark){if(mark == 95){printf("优秀\t\t");}else if(mark == 85){printf("良好\t\t");}else if(mark == 75){printf("中等\t\t");}else if(mark == 65){printf("及格\t\t");}else if(mark == 0){printf("不及格\t\t");}}//按学号打印某班成绩单void PrintClassGrade(struct Student** head, int Class){ Sort(head,0);int count = 0;for (struct Student *p = *head; p != NULL; p = p->Next){ if (p->ID / 100 % 100 == Class){ count++; if(count == 1){ printf("学号\t\t姓名\t高程\t高程实验\t高级设计\t面向对象\t面向对象实验\t平均成绩\t加权平均\n");} printf("%d\t%s\t%d\t", p->ID,p->Name,p->Mark[0]);     Print_Five(p->Mark[1]); Print_Five(p->Mark[2]); printf("%d\t\t",p->Mark[3]); Print_Five(p->Mark[4]); printf("%.2f\t\t%.2f\n", p->Average, p->Weighted_Average);}}if(count == 0){printf("非常抱歉，暂时没有录入该班级成绩信息!\n");}}//按某课程成绩打印某班成绩单void PrintClassCourseGrade(struct Student** head, int Class, int course){Sort(head,course+2);int count = 0;for(struct Student* p = *head; p != NULL; p = p->Next){if(p->ID / 100 % 100 == Class){count++;    if(count == 1){ printf("学号\t\t姓名\t");                 printf("%s\n",Cour[course                        ].Name);}printf("%d\t%s\t", p->ID, p->Name);if(Cour[course].Credit == 1){Print_Five(p->Mark[course]);printf("\n");}else{printf("%d\n", p->Mark[course]);}}}if(count == 0){printf("非常抱歉，暂时没有录入该班级成绩信息！\n");}}void Print_Mark1(Student* p,int a_or_wa)//打印一个人的成绩0.包括平均成绩，1，包括加权平均成绩{    printf("学号\t\t姓名\t高程\t高程实验\t高级设计\t面向对象\t面向对象实验\t");    if(a_or_wa == 0){    printf("平均成绩\n");    }else    {        printf("加权平均成绩\n");    }     printf("%d\t%s\t%d\t", p->ID,p->Name,p->Mark[0]);     Print_Five(p->Mark[1]);     Print_Five(p->Mark[2]);     printf("%d\t\t",p->Mark[3]);     Print_Five(p->Mark[4]);     if(a_or_wa == 0){        printf("%.2f\n", p->Average);     }else     {         printf("%.2f\n", p->Weighted_Average);     }}void Print_Mark2(Student* p,int a_or_wa)//打印一个人的成绩0.包括平均成绩，1，包括加权平均成绩{    printf("学号\t\t姓名\t高程\t高程学分\t高程实验\t高程实验学分\t高级设计\t高级设计学分\t面向对象\t面向对象学分\t面向对象实验\t面向对象实验学分\t");    if(a_or_wa == 0){    printf("平均成绩\n");    }else    {        printf("加权平均成绩\n");    }     printf("%d\t%s\t%d\t%d\t\t", p->ID,p->Name,p->Mark[0],Cour[0].Credit);     Print_Five(p->Mark[1]);     printf("%d\t\t",Cour[1].Credit);     Print_Five(p->Mark[2]);     printf("%d\t\t",Cour[2].Credit);     printf("%d\t\t%d\t\t",p->Mark[3],Cour[3].Credit);     Print_Five(p->Mark[4]);     printf("%d\t\t\t",Cour[4].Credit);     if(a_or_wa == 0){        printf("%.2f\n", p->Average);     }else     {         printf("%.2f\n", p->Weighted_Average);     }}void Print_Search_Mark( int ID_or_Name ,Student** head)//按照学号（0）或姓名（1）输出当前平均成绩排名,加权成绩排名，{    int ID = 0;    char Name[20] = "no name";    if(ID_or_Name == 0)    {        printf("请输入你想要查找的学号(8位数)：");        scanf("%d",&ID);    }else    {        printf("请输入你想要查找的姓名：");        scanf("%s",Name);    }     Sort(head,7);    Student * p = *head;    int count = 1;    bool flag = false;    while(p != NULL){            if(p->ID == ID || strcmp(p->Name ,Name) == 0){                    flag = true;                    Print_Mark1(p,0);                    printf("该同学当前平均成绩排名为:%d\n",count);                    break;            }            count++;        p = p->Next;    }    if(!flag){            printf("对不起，暂时没有录入该生的信息！");    }    count = 1;    flag = false;     Sort(head,8);    p = *head;    while(p != NULL){            if(p->ID == ID || strcmp(p->Name ,Name) == 0)              {                    flag = true;                    Print_Mark2(p,1);                    printf("该同学当前加权平均成绩排名为:%d\n",count);                    break;              }            count++;        p = p->Next;    }    if(!flag){        printf("对不起，暂时没有录入该生成绩！");    }}void Print_Excellent_Mark(Student** head, int course)//打印优秀同学成绩信息，0，1，2，3，4代表五门成绩{    int count = 0;    Sort(head,0);   for (struct Student *p = *head; p != NULL; p = p->Next){ if (p->Position !=2&&p->Position !=3&& p->Mark[course] >= 90)//<=100{ count++;         if(count == 1){ printf("学号\t\t姓名\t高程\t高程实验\t高级设计\t面向对象\t面向对象实验\t平均成绩\t加权平均\n");} printf("%d\t%s\t%d\t", p->ID,p->Name,p->Mark[0]);     Print_Five(p->Mark[1]); Print_Five(p->Mark[2]); printf("%d\t\t",p->Mark[3]); Print_Five(p->Mark[4]); printf("%.2f\t\t%.2f\n", p->Average, p->Weighted_Average);}}if(count == 0){printf("非常抱歉，暂时没有录入优秀同学的信息!\n");}}void Print_Total_Mark(Student** head, int SortStyle)//打印系统中所有同学的成绩单[总成绩单]0.按学号打印{                                                   //1.按平均成绩打印；2，按加权平均成绩打印    switch(SortStyle)    {    case 0:         Sort(head,0);        break;    case 1:         Sort(head,7);        break;    case 2:        Sort(head,8);        break;    default:        printf("选择排序方式错误！"); return;    }    if(head != NULL){            printf("学号\t\t姓名\t高程\t高程实验\t高级设计\t面向对象\t面向对象实验\t平均成绩\t加权平均\n");    for (struct Student *p = *head; p != NULL; p = p->Next){ printf("%d\t%s\t%d\t", p->ID,p->Name,p->Mark[0]);     Print_Five(p->Mark[1]); Print_Five(p->Mark[2]); printf("%d\t\t",p->Mark[3]); Print_Five(p->Mark[4]); printf("%.2f\t\t%.2f\n", p->Average, p->Weighted_Average);    }}else{    printf("对不起，系统暂时没有录入信息。");}}