// mytest.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include <iostream>
#include <map>
#include <string>
#include <algorithm>
class Student
{
public:
Student(std::string name,
unsigned long id,
std::string sex,
std::string political,
std::string address)
:
m_name(name),
m_id(id),
m_sex(sex),
m_political(political),
m_address(address)
{
}
public:
unsigned long m_id
std::string m_name
std::string m_sex
std::string m_political
std::string m_address
}
typedef std::map<unsigned long, Student>StudentCont
class StudentMgr
{
public:
StudentMgr()
:
m_num(0)
{
}
void add()
{
std::cin.clear()
std::cin.sync()
std::string name("")
std::cout <<"please input student's name: "
std::getline(std::cin, name)
std::string sex("")
std::cout <<"please input student's sex: "
std::getline(std::cin,sex)
std::string political("")
std::cout <<"please input student's political apperance: "
std::getline(std::cin,political)
std::string address("")
std::cout <<"please input student's address: "
std::getline(std::cin,address)
m_num++
Student student(name, m_num, sex, political, address)
m_students.insert(std::make_pair(m_num, student))
std::cout <<"Student " <<m_num <<" " <<name <<" " <<sex <<" " <<political <<" " <<address <<" add successfully!" <<std::endl
}
void del()
{
unsigned long id
std::cout <<"Please input the student's id:"
std::cin >>id
StudentCont::iterator iter = m_students.find(id)
if(iter != m_students.end())
{
m_students.erase(id)
std::cout <<"Id number: " <<id <<" was deleted successfully!" <<std::endl
}
else
{
std::cout <<"Id number: " <<id <<" doesn't exist in the system!" <<std::endl
}
}
void mod()
{
unsigned long id
std::cout <<"Please input the student's id:"
std::cin >>id
StudentCont::iterator iter = m_students.find(id)
if(iter != m_students.end())
{
std::cout <<"Id number: " <<id <<" is found, please input the information you want to change!" <<std::endl
std::cout <<"please input your choice number:" <<std::endl
std::cout <<"--------------------------------" <<std::endl
std::cout <<"-[1] name. -" <<std::endl
std::cout <<"-[2] sex. -" <<std::endl
std::cout <<"-[3] political apperance. -" <<std::endl
std::cout <<"-[4] address. -" <<std::endl
std::cout <<"-[5] Quit! -" <<std::endl
std::cout <<"--------------------------------" <<std::endl
unsigned long choiceNum
std::cin >>choiceNum
switch(choiceNum)
{
case 1:
{
std::string name
std::cin.clear()
std::cin.sync()
std::cout <<"please input new student's name: "<<std::endl
std::getline(std::cin,name)
(*iter).second.m_name = name
break
}
case 2:
{
std::string sex
std::cin.clear()
std::cin.sync()
std::cout <<"please input correct student's sex: "<<std::endl
std::getline(std::cin,sex)
(*iter).second.m_sex = sex
break
}
case 3:
{
std::string political
std::cin.clear()
std::cin.sync()
std::cout <<"please input student's new political apperance: "<<std::endl
std::getline(std::cin,political)
(*iter).second.m_political = political
break
}
case 4:
{
std::string address
std::cin.clear()
std::cin.sync()
std::cout <<"please input student's new address: "<<std::endl
std::getline(std::cin,address)
(*iter).second.m_address = address
break
}
case 5:
break
default:
{
std::cerr <<"Input choice number:" <<choiceNum <<" is wrong!" <<std::endl
break
}
}
}
else
{
std::cout <<"Id number: " <<id <<" doesn't exist in the system, return to the menu!" <<std::endl
}
std::cout <<"modify sucessfull!" <<std::endl
}
void query()
{
unsigned long id
std::cout <<"Please input the student's id:"
std::cin >>id
StudentCont::iterator iter = m_students.find(id)
if(iter != m_students.end())
{
std::cout <<"The student's information is: "
<<(*iter).second.m_id <<" "
<<(*iter).second.m_name <<" "
<<(*iter).second.m_address <<" "
<<(*iter).second.m_political <<" "
<<(*iter).second.m_sex <<std::endl
}
else
{
std::cout <<"Id number: " <<id <<" doesn't exist in the system, return to the menu!" <<std::endl
}
}
private:
unsigned long m_num
StudentCont m_students
}
void printMenu()
{
std::cout <<"please input your choice number:" <<std::endl
std::cout <<"--------------------------------" <<std::endl
std::cout <<"-[1] Add a student.-" <<std::endl
std::cout <<"-[2] Delete a student. -" <<std::endl
std::cout <<"-[3] Modify a student. -" <<std::endl
std::cout <<"-[4] Query students. -" <<std::endl
std::cout <<"-[5] Quit! -" <<std::endl
std::cout <<"--------------------------------" <<std::endl
}
void startstudentManagement()
{
std::cout <<"Thank you for using this simple student management system, Welcome!" <<std::endl
printMenu()
std::auto_ptr<StudentMgr>studentMgr(new StudentMgr)
bool stop = false
do
{
unsigned long choiceNum = 0
std::cout <<"Your choice number is: "
std::cin.clear()
std::cin.sync()
std::cin >>choiceNum
switch(choiceNum)
{
case 1:
studentMgr->add()
break
case 2:
studentMgr->del()
break
case 3:
studentMgr->mod()
break
case 4:
studentMgr->query()
break
case 5:
stop = true
break
default:
std::cerr <<"The input number is none of the choice, please try again." <<std::endl
stop = true
break
}
}
while(!stop)
}
void stopstudentManagement()
{
std::cout <<"Thank you for using this simple student management system, Bye!" <<std::endl
}
int main(void)
{
startstudentManagement()
stopstudentManagement()
return 0
}
以上回答你满意么？
我以前做的....要按你这个做不是一下两下弄得完的吧........你看看能改着用就改这用吧
vc,tc,win-tc编译通过
33．学生成绩管理程序设计
（1）选项菜单集成各功能函数模块
（2）录入学生成绩（姓名、学号、语文、数学成绩，总分自动计算）
（3）按总分排名次
（4）按姓名查找某学生成绩
（5）统计各课程的平均分、及格率、最高分、最低分
#include "stdio.h"
#include "windows.h"
int sum=0,x,data=0
struct STU
{
char name[20]
char num[20]
int chinese_great
int math_great
int all
}stu[200]/*定义学生结构体以及学生结构体数组*/
struct STU *temp
struct STU *p[200]
void in()/*自定义学生信息输入函数*/
void all_swap()/*总分排名*/
void menu()/*菜单*/
void name_swap()/*姓名查找*/
void tongji()/*统计*/
int ssame(char a[],char b[])/*字符串比对函数*/
void over()/*退出*/
void main()
{
menu()
switch (x)
{
case 1 : data=1system("cls")in()break
case 2 : system("cls")all_swap()break
case 3 : system("cls")name_swap()break
case 4 : system("cls")tongji()break
}
}
/*菜单*/
void menu()
{
system("cls")
printf("******************************学生成绩管理系统****************************\n")
printf("请选择你需要的 *** 作:\n")
printf("1.录入学生成绩（姓名、学号、语文、数学成绩，总分自动计算）\n")
printf("2.按总分排名次\n")
printf("3.按姓名查找某学生成绩\n")
printf("4.统计各课程的平均分、及格率、最高分、最低分\n")
printf("5.打印成绩表\n")
scanf("%d",&x)
}
/*学生信息输入函数*/
void in()
{
int i
int end=1
for(i=0i<200i++)
{
sum++
printf("请输入第%d个学生的姓名: ",i+1)
scanf("%s",&stu.name)
printf("请输入第%d个学生的学号: ",i+1)
scanf("%s",&stu.num)
printf("请输入第%d个学生的语文成绩: ",i+1)
scanf("%d",&stu.chinese_great)
printf("请输入第%d个学生的数学成绩: ",i+1)
scanf("%d",&stu.math_great)
stu.all=stu.chinese_great+stu.math_great
printf("\n\n\n\n\n \n 1:继续录入\n 2:结束录入\n 请选择：")
scanf("%d",&end)
if(end==2)
break
else if (end==1) system("cls")
else over()
}/*FOR结束*/
system("cls")
main()
}/*学生信息输入函数结束*/
/*按总分排名*/
void all_swap()
{
int i,j,q=0
for(i=0i<=sumi++)
p=&stu
for(i=0i<=sum-1i++)
for (j=i+1j<=sumj++)
{
if(stu.all<stu[j].all)
{
temp=p
p=p[j]
p[j]=temp
}
}
printf("名次姓名学号总成绩\n")
for(i=0i<sumi++)
printf("%d %s %s %d\n",i+1,p->name,p->num,p->all)
printf("输入 1 返回主菜单，输入其他退出")
scanf("%d",&q)
if(q==1)
{
system("cls")
main()
}
else over()
}/*总分查询结束*/
/*名字查询*/
void name_swap()
{
int i,q
char temp[20]
for(i=0i<=sumi++)
p=&stu
printf("\n\n\n\n\n\n\n\n\n\ 请输入您要查询的学生姓名\n")
scanf("%s",&temp)
for (i=0i<=sumi++)
{
if(ssame(temp,p->name)==0)
{
system("cls")
printf("你所查找的学生已找到\n 姓名：%s \n 学号： %s \n 数学成绩：%d \n 语文成绩：%d \n 总成绩：%d ",p->name,p->num,p->chinese_great,p->math_great,p->all)
printf("\n\n\n\n\n\n 输入 1 返回主菜单，输入其他退出")
scanf("%d",&q)
if(q==1)
{
system("cls")
main()
}
else over()
}
else
{
system("cls")
printf("\n\n\n\n\n\n 未找到与%s有关的记录",temp)
printf("\n\n\n\n\n\n 输入 1 返回主菜单，输入其他退出")
scanf("%d",&q)
if(q==1)
{
system("cls")
main()
}
else over()
}
}
} /*名字查询结束*/
/*统计*/
void tongji()
{
int i,q,chinese_max=0,chinese_min=9999,math_max=0,math_min=9999long sum_chinese=0,sum_math=0
float chinese_v,math_v,chinese_p,math_p,p_c=0,p_m=0
if(data==1)
{
for(i=0i<=sumi++)
{
p=&stu
sum_chinese=p->chinese_great+sum_chinese
sum_math=p->math_great+sum_math
if(p->chinese_great>=60)
p_c++
if(p->math_great>=60)
p_m++
}
chinese_v=sum_chinese/sum/*语文平均分*/
math_v=sum_math/sum/*数学平均分*/
chinese_p=(p_c/sum)*100/*语文及格率*/
math_p=(p_m/sum)*100/*数学及格率*/
for(i=0i<sumi++)
{
chinese_max=max(chinese_max,p->chinese_great)
chinese_min=min(chinese_min,p->chinese_great)
math_max=max(math_max,p->math_great)
math_min=min(math_min,p->math_great)
}
printf("科目平均分及格率 最高分最低分\n")
printf("语文 %f 百分之%f %d%d \n",chinese_v,chinese_p,chinese_max,chinese_min)
printf("数学 %f 百分之%f %d%d \n",math_v,math_p,math_max,math_min)
printf("\n\n\n\n\n\n 输入 1 返回主菜单，输入其他退出")
scanf("%d",&q)
if(q==1)
{
system("cls")
main()
}
else over()
}
else main()
}
/*字符串比对*/
int ssame(char a[],char b[])
{
int p=0,flag=0
while (a[p]!='\0'||b[p]!='\0')
{
if((a[p]>b[p]) || (a[p]<b[p]))
{
flag=1break
}
p++
}
if(flag==0)
{
if((a[p]!='\0') || (b[p]!='\0'))
flag=1
}
return flag
}/*字符串比对结束*/
/*退出*/
void over()
{
int q
system("cls")
printf("\n\n\n\n\n\n\n\n\n 此 *** 作将导致你退出本程序。\n1：确认退出 \n2：返回主菜单")
scanf("%d",&q)
if(q==1)
exit(1)
else if (q==2)
main()
else over()
}
/*好吧，其实你可以上网看看，那么多的,你可以自己修改下*/#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>
#define NULL 0
#define LEN sizeof(struct student)
struct student
{
char name[20]
long int num
char sex[4]
int age
char address[30]
double tele_num
char aihao[20]
struct student *next
}//定义一个结构题
int TOTAL_NUM = 0//学生总数
struct student *head = NULL
void welcome ()//欢迎界面
void mainmenu ()//主界面
void record ()//记录数据
void insert(struct student *stu)//插入数据
void display(struct student *stu)//显示一个学生的信息
void displayAll ()//显示所有学生的信息
void query_by_num ()//按学号查询学生信息
void readData ()//读取文件里学生的信息
void writeData ()//向文件写入学生信息
void freeAll ()//清空链表内容
void del ()//删除学生信息
void change ()//更改学生信息
void devise (struct student *p)//选择更改内容
int main (void)
{
welcome ()
//显示主菜单
mainmenu ()
return 0
}
//显示欢迎信息
void welcome ()
{
printf ("+----------------------------------------------------+\n")
printf ("||\n")
printf ("| 欢迎使用网络工程学院信息安全092班学生信息管理系统 |\n")
printf ("||\n")
printf ("+----------------------------------------------------+\n")
}
//系统主菜单
void mainmenu ()
{
int choice
choice = -1
readData ()
printf ("\n温馨提示：为保证您的 *** 作得到保存，请按正常顺序退出系统^_^\n")
do
{
printf ("\n\n\n")
printf ("\t\t\t--------------------------------------------\n")
printf ("\t\t\t+信息安全092班学生信息管理系统 |\n")
printf ("\t\t\t--------------------------------------------\n")
printf ("\t\t\t+[1]----录入学生信息|\n")
printf ("\t\t\t+[2]----浏览学生信息|\n")
printf ("\t\t\t+[3]----查询学生信息|\n")
printf ("\t\t\t+[4]----删除学生信息|\n")
printf ("\t\t\t+[5]----修改学生信息|\n")
printf ("\t\t\t+[0]----退出系统|\n")
printf ("\t\t\t+*·*·*·*·*·*·*·*·*·*·*·*·*·*·*|\n")
printf ("\t\t\t--------------------------------------------\n")
printf ("请输入您的选择：")
scanf ("%d", &choice)
switch (choice)
{
case 0:
writeData ()
freeAll ()
exit (0)
case 1:
record ()
break
case 2:
displayAll ()
break
case 3:
query_by_num ()
break
case 4:
del ()
break
case 5:
change ()
break
default:
printf ("\n无效选项!")
break
}
}
while (choice != 0)
}
//录入学生信息
void record ()
{
struct student *p0
p0 = (struct student *)malloc(LEN)
printf ("请输入学生的姓名:")
scanf ("%s",p0->name)
printf ("请输入学生的学号:")
scanf ("%ld",&p0->num)
printf ("请输入学生的性别:")
scanf ("%s",p0->sex)
printf ("请输入学生的年龄:")
scanf ("%d",&p0->age)
printf ("请输入学生的地址:")
scanf ("%s",p0->address)
printf ("请输入学生的电话:")
scanf ("%lf",&p0->tele_num)
printf ("请输入学生的爱好:")
scanf ("%s",p0->aihao)
insert (p0)
printf ("该学生的信息为:\n")
printf ("-------------------------------------------------------------------------------\n")
printf ("姓名\t学号\t\t年龄\t性别\t地址\t\t电话\t\t爱好\n")
display (p0)
}
void insert (struct student *stu)
{
struct student *p0, *p1, *p2
p1 = head
p0 = stu
if (head == NULL)
{
head = p0
p0->next = NULL
}
else
{
while ((p0->num >p1->num)&&(p1->next != NULL))
{
p2 = p1
p1 = p1->next
}
if (p0->num <= p1->num)
{
if (head == p1)
head = p0
else
p2->next = p0
p0->next = p1
}
else
{
p1->next = p0
p0->next = NULL
}
}
TOTAL_NUM++
}
void display (struct student *p)
{
printf ("%s\t%ld\t%d\t%s\t%s\t\t%.0f\t%s\n", p->name, p->num, p->age, p->sex, p->address, p->tele_num, p->aihao)
}
//浏览学生信息
void displayAll()
{
struct student *p
printf("学生总数:%d\n", TOTAL_NUM)
p = head
if (head != NULL)
{
printf("\n姓名\t学号\t\t年龄\t性别\t地址\t\t电话\t\t爱好\n")
printf("-------------------------------------------------------------------------------\n")
do
{
display(p)
p = p->next
}
while(p != NULL)
}
printf ("\n")
}
//按学号查询学生信息
void query_by_num ()
{
int num
struct student *p1
printf("请输入学生的学号：")
scanf("%ld", &num)
if(head==NULL)
{
printf("无学生记录！\n")
return
}
p1 = head
while (num!=p1->num &&p1->next!=NULL)
p1 = p1->next
if (num == p1->num)
{
printf ("姓名\t学号\t\t年龄\t性别\t地址\t\t电话\t\t爱好\n")
printf ("-------------------------------------------------------------------------------\n")
display (p1)
}
else
printf ("没有该学生记录，请核对！")
}
//写入文件
void writeData ()
{
FILE* fp//文件指针
struct student *p
fp = fopen("1.txt", "w")
if (!fp)
{
printf("文件打开错误！")
return
}
fprintf(fp,"%d\n", TOTAL_NUM)
for(p = headp!= NULLp= p->next)
{
fprintf(fp,"%s\t%ld\t%s\t%d\t%s\t%.0f\t%s\n", p->name, p->num, p->sex, p->age, p->address, p->tele_num, p->aihao)
}
fclose (fp)
}
void freeAll ()
{
struct student *p1, *p2
p1 = p2=head
while(p1)
{
p2=p1->next
free (p1)
p1 = p2
}
}
//读取文件
void readData ()
{
FILE* fp//文件指针
struct student *p1, *p2
fp = fopen("1.txt", "r")
if (!fp)
{
printf("文件打开错误！")
return
}
fscanf(fp,"%d\n", &TOTAL_NUM)
head = p1 = p2 = (struct student *)malloc(LEN)
fscanf(fp,"%s\t%ld\t%s\t%d\t%s\t%lf\t%s\n", p1->name, &p1->num, p1->sex, &p1->age, p1->address, &p1->tele_num, p1->aihao)
while(!feof(fp))
{
p1 = (struct student *)malloc(LEN)
fscanf(fp,"%s\t%ld\t%s\t%d\t%s\t%lf\t%s\n", p1->name, &p1->num, p1->sex, &p1->age, p1->address, &p1->tele_num, p1->aihao)
p2->next = p1
p2 = p1
}
p2->next = NULL
fclose(fp)
}
//删除学生信息
void del ()
{
struct student *p1, *p2
long int num
if (head == NULL)
{
printf("无学生记录！\n")
return
}
printf("请输入您要删除的学生的学号：")
scanf("%ld", &num)
p1 = head
while (num != p1->num &&p1->next != NULL)
{
p2 = p1
p1 = p1->next
}
if(num == p1->num)
{
if(p1 == head)
head = p1->next
else p2->next = p1->next
free(p1)
TOTAL_NUM--
}
else
printf("没有该学生记录，请核对！\n")
}
//修改学生信息
void change ()
{
struct student *p1, *p2
long int num
if (head == NULL)
{
printf ("无学生记录！\n")
return
}
printf ("请输入您要修改的学生的学号：")
scanf ("%ld", &num)
p1 = head
while (num != p1->num &&p1->next != NULL)
{
p2 = p1
p1 = p1->next
}
if(num == p1->num)
devise (p1)
else
printf("没有该学生记录，请核对！\n")
}
void devise (struct student *p)
{
int choice
choice = -1
do
{
printf("请选择您要修改的学生的信息内容：\n")
printf("+----------------------+\n")
printf("| 姓名 请按 1 |\n")
printf("| 学号 请按 2 |\n")
printf("| 性别 请按 3 |\n")
printf("| 年龄 请按 4 |\n")
printf("| 地址 请按 5 |\n")
printf("| 电话 请按 6 |\n")
printf("| 爱好 请按 7 |\n")
printf("| 取消 请按 0 |\n")
printf("+----------------------+\n")
printf("请输入您的选择：")
scanf("%d", &choice)
switch (choice)
{
case 0:
return
case 1:
printf("请输入新姓名：")
scanf("%s", p->name)
break
case 2:
printf("请输入新学号：")
scanf("%d", &p->num)
break
case 3:
printf("请输入新性别：")
scanf("%s", p->sex)
break
case 4:
printf("请输入新年龄：")
scanf("%s", &p->age)
break
case 5:
printf("请输入新地址：")
scanf("%s", p->address)
break
case 6:
printf("请输入新电话：")
scanf("%lf", &p->tele_num)
break
case 7:
printf("请输入新爱好：")
scanf("%s", p->aihao)
break
default:
printf("\n无效选项!")
break
}
}
while(choice != 0)
}
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