#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<dos.h>
#include<string.h>
#define LEN sizeof(struct student)
#define FORMAT "%-8d%-15s%-12.1lf%-12.1lf%-12.1lf%-12.1lfn"
#define DATA stu[i].num,stu[i].name,stu[i].elec,stu[i].expe,stu[i].requ,stu[i].sum
struct student
{ int num
char name[15]
double elec
double expe
double requ
double sum
}
struct student stu[50]
void in()
void show()
void order()
void del()
void modify()
void menu()
void insert()
void total()
void search()
void main()
{ int n
menu()
scanf("%d",&n)
while(n)
{ switch(n)
{ case 1: in()break
case 2: search()break
case 3: del()break
case 4: modify()break
case 5: insert()break
case 6: order()break
case 7: total()break
case 8: show()break
default:break
}
getch()
menu()
scanf("%d",&n)
}
}
void in()
{ int i,m=0
char ch[2]
FILE *fp
if((fp=fopen("data.txt","a+"))==NULL)
{
printf("can not openn")
return
}
while(!feof(fp))
{
if(fread(&stu[m] ,LEN,1,fp)==1)
m++
}
fclose(fp)
if(m==0)
printf("No record!n")
else
{
system("cls")
show()
}
if((fp=fopen("data.txt","wb"))==NULL)
{
printf("can not openn")
return
}
for(i=0i<mi++)
fwrite(&stu[i] ,LEN,1,fp)
printf("please input(y/n):")
scanf("%s",ch)
while(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
{
printf("number:")
scanf("%d",&stu[m].num)
for(i=0i<mi++)
if(stu[i].num==stu[m].num)
{
printf("the number is existing,press any to continue!")
getch()
fclose(fp)
return
}
printf("name:")
scanf("%s",stu[m].name)
printf("elective:")
scanf("%lf",&stu[m].elec)
printf("experiment:")
scanf("%lf",&stu[m].expe)
printf("required course:")
scanf("%lf",&stu[m].requ)
stu[m].sum=stu[m].elec+stu[m].expe+stu[m].requ
if(fwrite(&stu[m],LEN,1,fp)!=1)
{
printf("can not save!")
getch()
}
else
{
printf("%s saved!n",stu[m].name)
m++
}
printf("continue?(y/n):")
scanf("%s",ch)
}
fclose(fp)
printf("OK!n")
}
void show()
{ FILE *fp
int i,m=0
fp=fopen("data.txt","rb")
while(!feof(fp))
{
if(fread(&stu[m] ,LEN,1,fp)==1)
m++
}
fclose(fp)
printf("number name elective experiment required sumtn")
for(i=0i<mi++)
{
printf(FORMAT,DATA)
}
}
void menu()
{
system("cls")
printf("nnnnn")
printf("tt|---------------------STUDENT-------------------|n")
printf("tt|t 0. exit |n")
printf("tt|t 1. input record |n")
printf("tt|t 2. search record |n")
printf("tt|t 3. delete record |n")
printf("tt|t 4. modify record |n")
printf("tt|t 5. insert record |n")
printf("tt|t 6. order |n")
printf("tt|t 7. number |n")
printf("tt|t 8. show |n")
printf("tt|-----------------------------------------------|nn")
printf("tttchoose(0-8):")
}
void order()
{ FILE *fp
struct student t
int i=0,j=0,m=0
if((fp=fopen("data.txt","r+"))==NULL)
{
printf("can not open!n")
return
}
while(!feof(fp))
if(fread(&stu[m] ,LEN,1,fp)==1)
m++
fclose(fp)
if(m==0)
{
printf("no record!n")
return
}
if((fp=fopen("data.txt","wb"))==NULL)
{
printf("can not openn")
return}
for(i=0i<m-1i++)
for(j=i+1j<mj++)
if(stu[i].sum<stu[j].sum)
{ t=stu[i]stu[i]=stu[j]stu[j]=t}
if((fp=fopen("data.txt","wb"))==NULL)
{ printf("can not openn")return}
for(i=0i<mi++)
if(fwrite(&stu[i] ,LEN,1,fp)!=1)
{
printf("%s can not save!n")
getch()
}
fclose(fp)
printf("save successfullyn")
}
void del()
{FILE *fp
int snum,i,j,m=0
char ch[2]
if((fp=fopen("data.txt","r+"))==NULL)
{ printf("can not openn")return}
while(!feof(fp)) if(fread(&stu[m],LEN,1,fp)==1) m++
fclose(fp)
if(m==0)
{
printf("no record!n")
return
}
printf("please input the number:")
scanf("%d",&snum)
for(i=0i<mi++)
if(snum==stu[i].num)
break
printf("find the student,delete?(y/n)")
scanf("%s",ch)
if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
for(j=ij<mj++)
stu[j]=stu[j+1]
m--
if((fp=fopen("data.txt","wb"))==NULL)
{ printf("can not openn")return}
for(j=0j<mj++)
if(fwrite(&stu[j] ,LEN,1,fp)!=1)
{ printf("can not save!n")
getch()}
fclose(fp)
printf("delete successfully!n")
}
void search()
{ FILE *fp
int snum,i,m=0
char ch[2]
if((fp=fopen("data.txt","rb"))==NULL)
{ printf("can not openn")return}
while(!feof(fp)) if(fread(&stu[m],LEN,1,fp)==1) m++
fclose(fp)
if(m==0) {printf("no record!n")return}
printf("please input the number:")
scanf("%d",&snum)
for(i=0i<mi++)
if(snum==stu[i].num)
{ printf("find the student,show?(y/n)")
scanf("%s",ch)
if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0)
{
printf("number name elective experiment required sumtn")
printf(FORMAT,DATA)
break
}
}
if(i==m) printf("can not find the student!n")
}
void modify()
{ FILE *fp
int i,j,m=0,snum
if((fp=fopen("data.txt","r+"))==NULL)
{ printf("can not openn")return}
while(!feof(fp))
if(fread(&stu[m],LEN,1,fp)==1) m++
if(m==0) {printf("no record!n")
fclose(fp)
return
}
show()
printf("please input the number of the student which do you want to modify!n")
printf("modify number:")
scanf("%d",&snum)
for(i=0i<mi++)
if(snum==stu[i].num)
break
printf("find the student!you can modify!n")
printf("name:")
scanf("%s",stu[i].name)
printf("elective:")
scanf("%lf",&stu[i].elec)
printf("experiment:")
scanf("%lf",&stu[i].expe)
printf("required course:")
scanf("%lf",&stu[i].requ)
printf("modify successful!")
stu[i].sum=stu[i].elec+stu[i].expe+stu[i].requ
if((fp=fopen("data.txt","wb"))==NULL)
{ printf("can not openn")return}
for(j=0j<mj++)
if(fwrite(&stu[j] ,LEN,1,fp)!=1)
{ printf("can not save!") getch() }
fclose(fp)
}
void insert()
{ FILE *fp
int i,j,k,m=0,snum
if((fp=fopen("data.txt","r+"))==NULL)
{ printf("can not openn")return}
while(!feof(fp))
if(fread(&stu[m],LEN,1,fp)==1) m++
if(m==0) {printf("no record!n")
fclose(fp)
return
}
printf("please input position where do you want to insert!(input the number)n")
scanf("%d",&snum)
for(i=0i<mi++)
if(snum==stu[i].num)
break
for(j=m-1j>ij--)
stu[j+1]=stu[j]
printf("now please input the new information.n")
printf("number:")
scanf("%d",&stu[i+1].num)
for(k=0k<mk++)
if(stu[k].num==stu[i+1].num)
{
printf("the number is existing,press any to continue!")
getch()
fclose(fp)
return
}
printf("name:")
scanf("%s",stu[i+1].name)
printf("elective:")
scanf("%lf",&stu[i+1].elec)
printf("experiment:")
scanf("%lf",&stu[i+1].expe)
printf("required course:")
scanf("%lf",&stu[i+1].requ)
stu[i+1].sum=stu[i+1].elec+stu[i+1].expe+stu[i+1].requ
if((fp=fopen("data.txt","wb"))==NULL)
{ printf("can not openn")return}
for(k=0k<=mk++)
if(fwrite(&stu[k] ,LEN,1,fp)!=1)
{ printf("can not save!") getch() }
fclose(fp)
}
void total()
{ FILE *fp
int m=0
if((fp=fopen("data.txt","r+"))==NULL)
{ printf("can not openn")return}
while(!feof(fp))
if(fread(&stu[m],LEN,1,fp)==1)
m++
if(m==0) {printf("no record!n")fclose(fp)return}
printf("the class are %d students!n",m)
fclose(fp)
}
#include <iostream>
//#include <String>
using namespace std
struct Date
{
int year
int month
int day
}
class Person
{
protected:
Date birthday
char* name
int personID
public:
Person(char* name,int personID,Date birthday)
{
this->birthday=birthday
this->name=name
this->personID=personID
}
void say()
{
cout<<name<<"说话"<<endl
}
virtual void ShangKe()=0
}class Teacher:public Person
{
private:
int teacherID
public:
Teacher(char * name,int personID,int teacherID, Date birthday):Person(name,personID,birthday)
{
this->teacherID=teacherID
}
void ShangKe()
{
cout<<name<<"老师上课"<<endl
}
}class Student:public Person
{
private:
int studentID
public:
Student(char * name,int personID,int teacherID,Date birthday):Person(name,personID,birthday)
{
this->studentID=studentID
}
void ShangKe()
{
cout<<name<<"学生听课"<<endl
}
}
void main()
{
Person *p
Date birthday
birthday.year=2000
birthday.month=1
birthday.day=1
Teacher tea("zhangsan",123,001,birthday)
Student stu("lisi",456,007,birthday)
p=&tea
p->ShangKe()
p=&stu
p->ShangKe()
}
大家来投我一票···嘿嘿··
你问的这也太有含糊了。
只能说业务大概包含：
教师信息
班级信息
课程信息
学生信息
成绩信息
综合查询
系统管理
以此类推，每个里面都有增删查改，都实现了就是个教务系统
以上就是关于C语言编写一个教务管理系统 注:可以把这个程序也发我一下吗全部的内容，如果了解更多相关内容，可以关注，你们的支持是我们更新的动力！
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