C语言学生管理系统
这里面的按名字查找 和按总成绩排序怎么写 求指导#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define NUM 30
main()
{
int i,j,num;
int xue_hao1;
char name1[30];
int slt; //此处变量表示选择
int age[NUM]={17,18,16,17,15,19,16}; //年龄数组
int xue_hao[NUM]={1,2,3,4,5,6,7}; //学号数组
float chinese[NUM]={78.5,68,92,88.5,90,75,81}; //语文数组
float math[NUM]={95,62,80,90.5,65.5,53,60}; //数学数组
float english[NUM]={32,59,43,82,71,83,90}; //英语数组
float sum[NUM]={205.5,207,222,261,226.5,213,231}; //总分数组
float aver[NUM]={68.5,69,74,87,75.5,71,77}; //平均分数组
float ping_shi[NUM]={81,80,92,98,95,89,88}; //平时成绩数组
char sex[NUM]={'b','g','b','b','g','b','g'}; //性别数组
char name[NUM][30]={"ran yi","zhang san","li si","wang wu","zhou er","xiao bai","xu san"}; //名字数组
j=6;
while(1)
{
system("cls");
printf("=============★学生信息管理系统★=============\n");
printf(" \n");
printf(" 1、退出程序; \n");
printf(" 2、查询个人学生信息; \n");
printf(" 3、查询所有学生信息; \n");
printf(" \n");
printf("=================制作组：3组==================\n");
printf(" \n");
printf(" 请选择功能(1-3)：");
scanf("%d",&slt);
switch(slt)
{
case 1: //功能1-退出程序
{
system("cls");
printf("========================================\n");
printf("\n");
printf(" ★谢谢您的使用!★ \n");
printf("\n");
printf("========================================\n");
break;
}
case 2: //功能2-查询个人学生信息
{
while(1)
{
system("cls");
printf("=============★查询个人学生信息★=============\n");
printf(" \n");
printf(" 1、按姓名查询; \n");
printf(" 2、按学号查询; \n");
printf(" 3、返回主菜单; \n");
printf(" \n");
printf("=================制作组：3组==================\n");
printf(" \n");
printf(" 请选择功能(1-3)：");
scanf("%d",&slt);
switch(slt)
{
case 1: //功能1-按姓名查询
{
while(1)
{
system("cls");
fflush(stdin); //清除缓存
printf("====================★按姓名查询★====================\n");
printf(" \n");
printf(" 请输入您要查询的姓名：");
gets(name1);
printf(" \n");
for(i=0;i<NUM;i++)
if(strcmp(name[i],name1)==0)
{
//输出学生信息
printf(" 姓名：%s\n",name[i]);
printf("\n");
printf(" 性别：%c ",sex[i]);
printf("年龄：%d ",age[i]);
printf("学号：%d\n",xue_hao[i]);
printf("\n");
printf(" 语文：%g ",chinese[i]);
printf("数学：%g ",math[i]);
printf("英语：%g\n",english[i]);
printf("\n");
printf(" 总分：%g ",sum[i]);
printf("平均分：%g ",aver[i]);
printf("平时成绩：%g \n",ping_shi[i]);
}
else
continue;
printf(" \n");
printf("======================制作组：3组=====================\n");
printf(" \n");
while(1)
{
printf(" 1、继续查询 2、返回 请选择：");
scanf("%d",&slt);
if(slt==1||slt==2)
break;
}
if(slt==2)
break;
}
break;
}
case 2: //功能2-按学号查询
{
while(1)
{
system("cls");
printf("====================★按学号查询★====================\n");
printf(" \n");
printf(" 请输入您要查询的学号：");
scanf("%d",&xue_hao1);
printf(" \n");
for(i=0;i<NUM;i++)
if(xue_hao1==xue_hao[i])
{
//输出学生信息
printf(" 姓名：%s\n",name[i]);
printf("\n");
printf(" 性别：%c ",sex[i]);
printf("年龄：%d ",age[i]);
printf("学号：%d\n",xue_hao[i]);
printf("\n");
printf(" 语文：%g ",chinese[i]);
printf("数学：%g ",math[i]);
printf("英语：%g\n",english[i]);
printf("\n");
printf(" 总分：%g ",sum[i]);
printf("平均分：%g ",aver[i]);
printf("平时成绩：%g \n",ping_shi[i]);
}
else
continue;
printf(" \n");
printf("======================制作组：3组=====================\n");
printf(" \n");
while(1)
{
printf(" 1、继续查询 2、返回 请选择：");
scanf("%d",&slt);
if(slt==1||slt==2)
break;
}
if(slt==2)
break;
}
break;
}
case 3: //功能3-返回主菜单
break;
}
if(slt==3) //当选择功能3时，进行判断，跳出循环
break;
}
break;
}
case 3:
{
while(1)
{
num=1;
system("cls");
printf("========================================================★查询所有学生信息★========================================================\n");
printf(" \n");
for(i=0;i<=j;i++)
{
printf(" %d、 姓名：%s ",num,name[i]);
printf("性别：%c ",sex[i]);
printf("年龄：%d ",age[i]);
printf("学号：%d ",xue_hao[i]);
printf("语文：%g ",chinese[i]);
printf("数学：%g ",math[i]);
printf("英语：%g ",english[i]);
printf("总分：%g ",sum[i]);
printf("平均分：%g ",aver[i]); //输出已有的学生信息
printf("平时成绩：%g \n",ping_shi[i]);
printf("\n");
num++;
}
printf("============================================================制作组：3组=============================================================\n");
printf(" \n");
printf(" 1、添加信息 2、修改信息 3、删除信息 4、排序 5、返回主菜单 请选择(1-5)：");
scanf("%d",&slt);
switch(slt)
{
case 1: //功能1-添加信息
{
break;
}
case 2: //功能2-修改信息
{
break;
}
case 3: //功能3-删除信息
{
break;
}
case 4: //功能4-排序
{
while(1)
{
system("cls");
printf("====================★排序★====================\n");
printf(" \n");
printf(" 1、返回; \n");
printf(" 2、按学号排序; \n");
printf(" 3、按总成绩排序; \n");
printf(" 4、按平均成绩排序; \n");
printf(" 5、按字符串大小排序; \n");
printf(" \n");
printf("===================制作组：3组==================\n");
printf(" \n");
printf(" 请选择(1-5)：");
scanf("%d",&slt);
switch(slt)
{
case 1:
break;
case 2:
{
break;
}
case 3:
{
break;
}
case 4:
{
break;
}
case 5:
{
break;
}
}
if(slt==1)
break;
}
break;
}
case 5: //功能5-返回主菜单
break;
}
if(slt==5) //当选择功能5时，进行判断，跳出循环
break;
}
break;
}
}
if(slt==1) //当选择功能1时，进行判断，跳出循环结束程序
break;
}
}
