//仅作参考#include "stdio.h"
#include "conio.h"
#include "stdlib.h"
#include "string.h"
int studentNum = 0;
#define MAXSTUDENT (1024)
#define CheckData()\
{\
if(!studentNum)\
{\
printf("没有学生资料！按任意键返回……\n");\
getch();\
return;\
}\
}\
typedef struct Student
{
int id;
int cScore;
int mathScore;
}Student;
void ClearStudent(Student* student)
{
memset((void*)student,0,sizeof(*student));
}
void ShowMainMenu()
{
system("cls");
printf("1.增加记录\n2.计算每个学生的总成绩\n3.计算每门课程的平均成绩\n4.按座号查询学生的成绩\n5.按总分排名\n6.输出前n名的学生的成绩\n7.修改成绩\n0.退出\n");
}
void ShowCountScore(const Student* student)
{
system("cls");
CheckData();
for(int i = 0;i < studentNum;i++)
printf("学生%04d的总成绩：%d\n",(student+i)->id,(student+i)->cScore+(student+i)->mathScore);
printf("\n按任意键继续……");
getch();
}
void ShowClassAvg(const Student* student)
{
system("cls");
CheckData();
double sumc = 0;
double summath = 0;
for(int i = 0;i < studentNum;i++)
{
sumc += (student+i)->cScore;
summath += (student+i)->mathScore;
}
printf("C语言平均成绩为：%lf\n",sumc/studentNum);
printf("数学平均成绩为：%lf\n",summath/studentNum);
printf("\n按任意键继续……");
getch();
}
void AddStudent(Student* student)
{
system("cls");
if(studentNum == MAXSTUDENT)
{......馀下全文>>