寻高手帮忙做个关于学生成绩管理系统的C语言程序！

学生成绩管理系统，使用c语言程序编写。~

给一个我以前写过的吧，功能应该差不多
#include #include #include #include #include #include #include #include #include using namespace std;/*定义学生结构体*/struct Student{ char ID[20]; char Name[20]; float Mark1; float Mark2; float Mark3; float Average;};/*声明学生数组及学生数量*/struct Student students[1000];int num=0; /*求平均值*/float Avg(struct Student stu){ return (stu.Mark1+stu.Mark2+stu.Mark3)/3;} /*通过学号返回数组下标*/int Student_SearchByIndex(char id[]){ int i; for (i=0;i<num;i++) { if (strcmp(students[i].ID,id)==0) { return i; } } return -1;} /*通过姓名返回数组下标*/int Student_SearchByName(char name[]){ int i; for (i=0;i<num;i++) { if (strcmp(students[i].Name,name)==0) { return i; } } return -1;} /*显示单条学生记录*/void Student_DisplaySingle(int index){ printf("%10s%10s%8s%8s%8s%10s
","学号","姓名","成绩","成绩","成绩","平均成绩"); printf("-------------------------------------------------------------
"); printf("%10s%10s%8.2f%8.2f%8.2f%10.2f
",students[index].ID,students[index].Name, students[index].Mark1,students[index].Mark2,students[index].Mark3,students[index].Average);} /*插入学生信息*/void Student_Insert(){ while(1) { printf("请输入学号:"); scanf("%s",&students[num].ID); getchar(); printf("请输入姓名:"); scanf("%s",&students[num].Name); getchar(); printf("请输入成绩:"); scanf("%f",&students[num].Mark1); getchar(); printf("请输入成绩:"); scanf("%f",&students[num].Mark2); getchar(); printf("请输入成绩:"); scanf("%f",&students[num].Mark3); getchar(); students[num].Average=Avg(students[num]); num++; printf("是否继续?(y/n)"); if (getchar()=='n') { break; } } } /*修改学生信息*/void Student_Modify(){ //float mark1,mark2,mark3; while(1) { char id[20]; int index; printf("请输入要修改的学生的学号:"); scanf("%s",&id); getchar(); index=Student_SearchByIndex(id); if (index==-1) { printf("学生不存在!
"); } else { printf("你要修改的学生信息为:
"); Student_DisplaySingle(index); printf("-- 请输入新值--
"); printf("请输入学号:"); scanf("%s",&students[index].ID); getchar(); printf("请输入姓名:"); scanf("%s",&students[index].Name); getchar(); printf("请输入成绩:"); scanf("%f",&students[index].Mark1); getchar(); printf("请输入成绩:"); scanf("%f",&students[index].Mark2); getchar(); printf("请输入成绩:"); scanf("%f",&students[index].Mark3); getchar(); students[index].Average=Avg(students[index]); } printf("是否继续?(y/n)"); if (getchar()=='n') { break; } }} /*删除学生信息*/void Student_Delete(){ int i; while(1) { char id[20]; int index; printf("请输入要删除的学生的学号:"); scanf("%s",&id); getchar(); index=Student_SearchByIndex(id); if (index==-1) { printf("学生不存在!
"); } else { printf("你要删除的学生信息为:
"); Student_DisplaySingle(index); printf("是否真的要删除?(y/n)"); if (getchar()=='y') { for (i=index;i<num-1;i++) { students[i]=students[i+1];//把后边的对象都向前移动 } num--; } getchar(); } printf("是否继续?(y/n)"); if (getchar()=='n') { break; } }} /*按姓名查询*/void Student_Select(){ while(1) { char name[20]; int index; printf("请输入要查询的学生的姓名:"); scanf("%s",&name); getchar(); index=Student_SearchByName(name); if (index==-1) { printf("学生不存在!
"); } else { printf("你要查询的学生信息为:
"); Student_DisplaySingle(index); } printf("是否继续?(y/n)"); if (getchar()=='n') { break; } }} /*按平均值排序*/void Student_SortByAverage(){ int i,j; struct Student tmp; for (i=0;i<num;i++) { for (j=1;j<num-i;j++) { if (students[j-1].Average<students[j].Average) { tmp=students[j-1]; students[j-1]=students[j]; students[j]=tmp; } } }} /*显示学生信息*/void Student_Display(){ int i; printf("%10s%10s%8s%8s%8s%10s
","学号","姓名","成绩","成绩","成绩","平均成绩"); printf("-------------------------------------------------------------
"); for (i=0;i<num;i++) { printf("%10s%10s%8.2f%8.2f%8.2f%10.2f
",students[i].ID,students[i].Name, students[i].Mark1,students[i].Mark2,students[i].Mark3,students[i].Average); }} /*将学生信息从文件读出*/void IO_ReadInfo(){ FILE *fp; int i; if ((fp=fopen("Database.txt","rb"))==NULL) { printf("不能打开文件!
"); return; } if (fread(&num,sizeof(int),1,fp)!=1) { num=-1; } else { for(i=0;i<num;i++) { fread(&students[i],sizeof(struct Student),1,fp); } } fclose(fp);} /*将学生信息写入文件*/void IO_WriteInfo(){ FILE *fp; int i; if ((fp=fopen("Database.txt","wb"))==NULL) { printf("不能打开文件!
"); return; } if (fwrite(&num,sizeof(int),1,fp)!=1) { printf("写入文件错误!
"); } for (i=0;i<num;i++) { if (fwrite(&students[i],sizeof(struct Student),1,fp)!=1) { printf("写入文件错误!
"); } } fclose(fp);} /*主程序*/void main(){ int choice; IO_ReadInfo(); while(1) { /*主菜单*/ printf("
------ 学生成绩管理系统------
"); printf("1. 增加学生记录
"); printf("2. 修改学生记录
"); printf("3. 删除学生记录
"); printf("4. 按姓名查询学生记录
"); printf("5. 按平均成绩排序
"); printf("6. 退出
"); printf("请选择(1-6):"); scanf("%d",&choice); getchar(); switch(choice) { case 1: Student_Insert(); break; case 2: Student_Modify(); break; case 3: Student_Delete(); break; case 4: Student_Select(); break; case 5: Student_SortByAverage(); Student_Display(); break; case 6: exit(0); break; } IO_WriteInfo(); }}

楼主，看到链表先提示一下，这个是C++。
其次，应该说明一下使用win32还是windows编程，MFC还是SDK？
看到了追问我把。

分是少了点，不过好心的我就帮帮你吧，呵呵！
你以上的功能我的程序里全有，你自己看看改改吧！

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

#define InputRcd 1
#define UpdateRcd 2
#define SelectRcd 3
#define Exit 4

#define NAMELEN 16
#define CLASSLEN 6

struct record {
char classID[CLASSLEN];
int term;
char name[NAMELEN];
int chinese,math,english;
};

void showProgInform()
{
printf("-------------------------------------------------\n");
printf("| *** STUDENTS' SCORE PLATFORM *** |\n");;
printf("-------------------------------------------------\n\n");
}

void showMenu() {
system("cls");
showProgInform();

printf("Please select an operation fo the following MENU: \n");
printf(" 1. Input a record \n");
printf(" 2. Update a record\n");
printf(" 3. Select record(s)\n");
printf(" 4. Exit. \n");
}

void inputRecord() {
struct record inscr;
FILE * fp;

system("cls");
showProgInform();

printf("Mention: You are to add new record\n\n");
printf("Please input by the following instructions: \n");
printf("Class ID: ");
scanf("%s",inscr.classID);
printf("Term Number: ");
scanf("%d",&(inscr.term));
printf("Student Name: ");
scanf("%s",inscr.name);
printf("Chinese score: ");
scanf("%d",&(inscr.chinese));
printf("Math score: ");
scanf("%d",&(inscr.math));
printf("English Score: ");
scanf("%d",&(inscr.english));
getchar();

if((fp=(fopen("stu_score.rcd","ab+")))==NULL) {
printf("Input record failed!\n");
return;
}

fwrite(&inscr,sizeof(struct record),1,fp);
fclose(fp);

if((fp=fopen("stu_score.txt","ab+"))==NULL) {
return;
}

fprintf(fp,"%s-%d %s: %d %d %d\r\n",inscr.classID,inscr.term,inscr.name,inscr.chinese,inscr.math,inscr.english);;
fclose(fp);
}

void showSingleRecord(struct record rc) {
printf("%s-%d %s: (CHI)%d (MAT)%d (ENG)%d\n",rc.classID,rc.term,rc.name,rc.chinese,rc.math,rc.english);
}

void updateRecord()
{
long fsize,arraySize,i;
struct record *allRecords,newRcd;
int hasFound = 0;

FILE * fp;
FILE * txt;

system("cls");
showProgInform();

if((fp = fopen("stu_score.rcd","rb")) == NULL ) {
printf("! No records , cannot operate\n");
return;
}

printf("Mention: You are to update record\n\n");
printf("Please the record you want to update by the follow mention: \n");
printf("Class Id: ");
scanf("%s",newRcd.classID);
printf("Term number: ");
scanf("%d",&newRcd.term);
printf("Student name: ");
scanf("%s",newRcd.name);

fseek(fp,0,SEEK_END);
fsize = ftell(fp);
arraySize = fsize/(sizeof(struct record));
allRecords = (struct record *)calloc(arraySize,sizeof(struct record));

rewind(fp);
fread(allRecords,sizeof(struct record),arraySize,fp);

for(i=0;i<arraySize;i++) {
if(strcmp(newRcd.classID,allRecords[i].classID)==0 && newRcd.term==allRecords[i].term && strcmp(newRcd.name,allRecords[i].name)==0) {
printf("Find the matching record: ");
showSingleRecord(allRecords[i]);

printf("Input new Score: \n");
printf("New Chinese Score: ");
scanf("%d",&(allRecords[i].chinese));
printf("New Math Score: ");
scanf("%d",&(allRecords[i].math));
printf("New English Score: ");
scanf("%d",&(allRecords[i].english));
printf("After update ,the records is : \n\t");
showSingleRecord(allRecords[i]);
printf("\n");
hasFound = 1;
break;
}
}
fclose(fp);

if(!hasFound) {
printf("No matching record has found!\n");
free(allRecords);
return;
}

if((fp = fopen("stu_score.rcd","w"))==NULL) {
printf("Write file stu_score.rcd failed\n");
return;
}

if((txt = fopen("stu_score.txt","w"))==NULL) {
printf("Write file stu_score.txt failed\n");
return;
}

fwrite(allRecords,sizeof(struct record),arraySize,fp);

for(i=0;i<arraySize;i++) {
fprintf(txt,"%s-%d %s: %d %d %d\r\n",allRecords[i].classID,allRecords[i].term,allRecords[i].name,allRecords[i].chinese,allRecords[i].math,allRecords[i].english);
}

free(allRecords);

fclose(fp);
fclose(txt);
}

void showSelectMenu(char classID[],int term) {
system("cls");
showProgInform();

printf("Mention: All the following opertion based on classID: %s,Term: %d\n\n",classID,term);
printf("Mention: You are to select the records\n\n");
printf("\t Please choose an operation: \n");
printf("\t 1. Select all records of the classID.\n");
printf("\t 2. Sort by the average score.\n");
printf("\t 3. Select no passed record.\n");
printf("\tOther. Return the high level menu.\n\n");
}

void showStatistic(struct record *r ,long size,char classID[],int term) {
int total;
float ave;
long i;

system("cls");
showProgInform();
printf("All records for class: %s,term: %d; total record nubmer: %ld\n",classID,term,size);

printf("********************************************************\n");
for(i=0;i<size;i++) {
total = r[i].chinese+r[i].english +r[i].math ;
ave = (float)total/3;
printf(" %s: (CHI)%d (MAT)%d (ENG)%d (Total)%d (Ave)%.2f\r\n",r[i].name,r[i].chinese,r[i].math,r[i].english,total,ave);
}
printf("********************************************************\n\n");
printf("Press Enter to return Select submenu\n");
getchar();
}

void sortSelectByAve(struct record * r,long size) {

FILE *fp;
struct record temp;
float outerAve ,innerAve;
int total;
long i,j;
system("cls");
showProgInform();
printf("\nSorted the records by average score\n");

for(i=0;i<size;i++) {
outerAve = (float)(r[i].chinese+r[i].math+r[i].english)/3;
for(j=i+1;j<size;j++) {
innerAve = (float)(r[j].chinese+r[j].math+r[j].english)/3;
if(innerAve > outerAve) {
strcpy(temp.name,r[j].name);
temp.chinese = r[j].chinese;
temp.math = r[j].math ;
temp.english = r[j].english ;

strcpy(r[j].name,r[i].name);
r[j].chinese = r[i].chinese ;
r[j].math = r[i].math ;
r[j].english = r[i].english ;

strcpy(r[i].name,temp.name);
r[i].chinese = temp.chinese ;
r[i].math = temp.math ;
r[i].english = temp.english ;
}
}
}

printf("\nshow sorted records \n");
printf("********************************************\n");
for(i=0;i<size;i++) {
total = r[i].chinese + r[i].math + r[i].english ;
innerAve = (float)total/3;
printf("%s: %d %d %d %d %f\n",r[i].name,r[i].chinese,r[i].math,r[i].english,total,innerAve);
}
printf("********************************************\n");

printf("write sorted records to \"sorted.txt\"\n");
if((fp = fopen("sorted.txt","w"))== NULL) {
printf("open sort.txt failed\n");
return;
}

for(i=0;i<size;i++) {
total = r[i].chinese + r[i].math + r[i].english ;
innerAve = (float)total/3;
fprintf(fp,"(CLASS-TERM)%s-%d (NAME)%s: (CHI)%3d (MAT)%3d (ENG)%3d (TOTAL)%4d (AVERG)%.2f\r\n",r[i].classID,r[i].term,r[i].name,r[i].chinese,r[i].math,r[i].english,total,innerAve);
}

printf("write file sorted.txt finished\n");
fclose(fp);

printf("\nPress any key to return Select subMenu\n");
}

void noPass(struct record * r,int size) {
long i=0,j=0;

FILE * fp;
if((fp=fopen("no-pass.txt","w"))==NULL) {
printf("create no-pass.txt failed");
return;
}

system("cls");
showProgInform();
printf("Mention: The following operation will be all on the classId and term you input\n\n");

printf("\nShow student that one subject is no-pass\n");
printf("***********************************************\n");
for(i=0;i<size;i++) {
if(r[i].chinese <60 || r[i].math<60 || r[i].english <60) {
printf("%s-%d %s: ",r[i].classID,r[i].term,r[i].name);
fprintf(fp,"%s-%d %s: ",r[i].classID,r[i].term,r[i].name);
if(r[i].chinese < 60 ) {
printf("(Chinese)%d ",r[i].chinese);
fprintf(fp,"(Chinese)%d ",r[i].chinese );
}
if(r[i].math < 60) {
printf("(Math)%d ",r[i].math);
fprintf(fp,"(Math)%d ",r[i].math);
}
if(r[i].english < 60) {
printf("(English)%d",r[i].english);
fprintf(fp,"(English)%d",r[i].english);
}
printf("\r\n");
fprintf(fp,"\r\n");
}
}
printf("***********************************************\n");
fclose(fp);
printf("Press Enter to return \"Select\" submenu\n");
}

void selectRecord() {
char classID[CLASSLEN];
int term;
FILE * fp;
long fsize=0,arraySize=0,thisSize=0,i=0,j=0;
struct record *allRcd,*thisClass;

system("cls");
showProgInform();
printf("Mention: The following operation will be all on the classId and term you input\n\n");
printf("Mention: please operate by the following instructions\n\n");

printf("Input ClassID: ");
scanf("%s",classID);
printf("Input term number: ");
scanf("%d",&term);

if((fp=fopen("stu_score.rcd","r"))==NULL) {
printf("\nWarining: No record exists!\n");
return;
}

fseek(fp,0,SEEK_END);
fsize = ftell(fp);
arraySize = fsize/(sizeof(struct record));
allRcd = (struct record *)calloc(arraySize,sizeof(struct record));
rewind(fp);
fread(allRcd,sizeof(struct record),arraySize,fp);

printf("Press Enter to show the sub menu of Select menu\n");

for(i=0;i<arraySize;i++) {
if(strcmp(classID,allRcd[i].classID)==0 && term==allRcd[i].term) {
thisSize++;
}
}

if(thisSize==0) {
printf("\nWaring: No record for Class %s Term %d\n",classID,term);
fclose(fp);
free(allRcd);
return;
}

thisClass = (struct record *)calloc(thisSize,sizeof(struct record));
j=0;
for(i=0;i<arraySize;i++) {
if(strcmp(classID,allRcd[i].classID)==0 && term==allRcd[i].term ) {
strcpy(thisClass[j].classID,classID) ;
thisClass[j].term = term ;
strcpy(thisClass[j].name,allRcd[i].name);
thisClass[j].chinese = allRcd[i].chinese;
thisClass[j].math = allRcd[i].math ;
thisClass[j].english = allRcd[i].english ;
j++;
}
}
free(allRcd);
/////////////////////////////////////////////////////////////
getchar();
getchar();
while(1) {
system("cls");
showProgInform();
printf("Mention: The following operation will be all on the classId and term you input\n\n");
showSelectMenu(classID,term);

switch(getchar()) {
case '1':
getchar();
showStatistic(thisClass,thisSize,classID,term);
break;
case '2':
getchar();
sortSelectByAve(thisClass,thisSize);
getchar();
break;
case '3':
getchar();
noPass(thisClass,thisSize);
printf("0: Press 0 to return \"Select\" submenu\n");
if(getchar()=='0')
break;
default:
getchar();
return;
}
}

free(thisClass);
fclose(fp);
}

void go_on() {
printf("Press Enter to continue\n");
getchar();
}

void main() {
showProgInform();

while(1) {
showMenu();
switch(getchar()) {
case '1':
getchar();
inputRecord();
go_on();
break;

case '2':
getchar();
updateRecord();
getchar();
go_on();
break;

case '3':
getchar();
selectRecord();
getchar();
go_on();

break;

case '4':
getchar();
//exit(1);
return;

default:
getchar();
printf("Wrong Option! input again\n");
go_on();
break;
}
}
}

---

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程钓克欣： 我没写,只能和你说说怎么写. 可以由类模板和数组写. 我说说类模板的吧. 定义一个Student类存放学生信息(姓名,初始排名,各科成绩,个人总分); 初始排名由输入顺序排,在计算名字的时候就可以通过冒泡排序. 在里面定义计算总...

泌阳县19795702641： 如何设计一个学生成绩管理系统? - ？
程钓克欣： 这个我以前做过的,登陆界面要分2种情况,第一个是管理员登陆 第二个是学生登陆,要设定权限 管理员可以对学生进行管理,可以对学生的成绩进行增删改查的管理.也可以对学生的信息进行操作,可以增加科目,可以注册学生,可以编辑学生所在的班级,以及班主任姓名.学生界面的话,这个权限就很少了,可以查询自己的各科成绩.你可以把这个查询做的丰富一点.比如按科目查询,可以做模糊查询.可以查询本次考试的最高分等等.因为这个系统比较简单,所以没什么好说的,数据库我用的是sqlserver,表结构你可以自己想想啊,全说明了就没意思了.希望对你能有帮助