基于C++的学生成绩管理系统设计

printf(\没有你输入的学号！\\n\ } printf(\请输入要删除的学号,退出请按'0'：\ scanf(\ }

Display(stu,Max);

return (Max); }

4.5详细代码描述

#include #include #include #include #include

#define MaxNum 2000

#define FileName \

//定义结构体 struct score

float English; float Java; float Chinese; float C; float Math; };

typedef struct STUDENT {

int num;

char name[10]; int classes; char sex[10];

struct score mark; }Student; //函数

void SaveStu(Student stu[],int Max);

void DisplayStuInf(Student stu[],int Max); void DisplayMainMenu();

int Delete(Student stu[],int Max); int InforInput(Student stu[],int id); int Read(Student stu[]);

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void Sort(Student stu[],int Max);

int FindStuNum(Student stu[],int findunm,int Max);

int FindStuName(Student stu[],char findname[],int Max); void QueryInformation(Student stu[],int Max);//查询学生信息 void Edit(Student stu[],int Max); void Name(Student stu[],int Max);

void EnglishCore(Student stu[],int Max); void AverageCore(Student stu[],int Max); void Display(Student stu[],int Max); void Count(Student stu[],int Max); void English(Student stu[],int Max); void Java(Student stu[],int Max); void Chinese(Student stu[],int Max); void C(Student stu[],int Max); void Math(Student stu[],int Max); void StuCore(Student stu[],int Max); void Count(Student stu[],int Max) int select;

printf(\英语成绩统计\\n\\n\\t2.Java成绩统计\\n\\n\\t3.语文成绩统计\\n\\n\\t4.C成绩统计\\n\\n\\t5.数学成绩统计\\n\\n\\t6.学生成绩统计\\n\\n\\t0.退出\\n\\t\ printf(\请选择：\ scanf(\ while(select!=0) {

switch(select) {

case 1:

English(stu,Max); break; case 2:

Java(stu,Max); break; case 3:

Chinese(stu,Max); break; case 4:

C(stu,Max); break; case 5:

Math(stu,Max); break; case 6:

StuCore(stu,Max); break;

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default:

printf(\输入错误！请重新输入！\\n\ }

printf(\

scanf(\ } }

void English(Student stu[],int Max) {

int i,you,liang,zhong,jige,buji; float high,low,sum,n,av;

sum=0;you=0;liang=0;zhong=0;jige=0;buji=0; low=stu[0].mark.English; high=stu[0].mark.English;

printf(\英语成绩统计：\\n\

printf(\优\\t良\\t中\\t及格\\t不及格\\t最高分\\t最低分\\t平均分\\t及格率\\n\

for(i=0;i

sum=sum+stu[i].mark.English; if(stu[i].mark.English>high) high=stu[i].mark.English; if(stu[i].mark.English

if(stu[i].mark.English>=90) you++;

else if(stu[i].mark.English>=80) liang++;

else if(stu[i].mark.English>=70) zhong++;

else if(stu[i].mark.English>=60) jige++; else

buji++; }

n=100*(Max-buji)/(float)Max; av=sum/Max;

printf(\\\t%.2f \\t%.2f\\t %.1f%%\\n\

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}

void Java(Student stu[],int Max) {

int i,you,liang,zhong,jige,buji; float high,low,sum,n,av;

sum=0;you=0;liang=0;zhong=0;jige=0;buji=0; low=stu[0].mark.Java; high=stu[0].mark.Java;

printf(\成绩统计：\\n\

printf(\优\\t良\\t中\\t及格\\t不及格\\t最高分\\t最低分\\t平均分\\t及格率\\n\

for(i=0;i

sum=sum+stu[i].mark.Java; if(stu[i].mark.Java>high) high=stu[i].mark.Java; if(stu[i].mark.Java

if(stu[i].mark.Java>=90) you++;

else if(stu[i].mark.Java>=80) liang++;

else if(stu[i].mark.Java>=70) zhong++;

else if(stu[i].mark.Java>=60) jige++; else

buji++; }

n=100*(Max-buji)/(float)Max; av=sum/Max;

printf(\ige,buji,high,low,av,n); }

void Chinese(Student stu[],int Max) {

int i,you,liang,zhong,jige,buji;

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