有10个学生，每个学生的数据包括学号，姓名，三门课的成绩，从文件中读取学生数据，要求输出每位学生的 C语言:有10个学生，每个学生的数据包括学号，姓名，3门功课...
模拟数据如下:
001|张三|85.5|79.0|92.0
002|李四|58.0|99.0|78.5
003|王五|88.0|51.0|63.0
004|孙六|84.0|88.0|92.0
005|杜七|52.0|51.0|43.0
006|刘八|96.0|100.0|99.0
007|钱九|61.0|77.0|79.5
008|周十|59.5|60.0|62.0
009|吴邪|88.0|92.0|75.0
010|郑州|78.0|91.0|99.0
import java.math.BigDecimal;
/**
* 学生类
*/
public class Student {
/**
* 学号
*/
private String code;
/**
* 姓名
*/
private String name;
/**
* 语文
*/
private double chinese;
/**
* 数学
*/
private double math;
/**
* 英语
*/
private double english;
/**
* 总分
*/
private double total;
/**
* 平均分
*/
private double average;
public Student() {
}
public Student(String code, String name, double chinese, double math, double english) {
this.code = code;
this.name = name;
this.chinese = chinese;
this.math = math;
this.english = english;
}
public Student(String[] properties) {
this(properties[0], properties[1],
new BigDecimal(properties[2]).doubleValue(),
new BigDecimal(properties[3]).doubleValue(),
new BigDecimal(properties[4]).doubleValue());
}
public double calculateTotal() {
this.total = this.chinese + this.math + this.english;
return this.total;
}
public double calculateAverage() {
average = (this.chinese + this.math + this.english) / 3;
average = BigDecimal.valueOf(average).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
return average;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getChinese() {
return chinese;
}
public void setChinese(double chinese) {
this.chinese = chinese;
}
public double getMath() {
return math;
}
public void setMath(double math) {
this.math = math;
}
public double getEnglish() {
return english;
}
public void setEnglish(double english) {
this.english = english;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public double getAverage() {
return average;
}
public void setAverage(double average) {
this.average = average;
}
}
import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class Test {
/**
* 根据实际情况修改路径,我是MAC系统
*/
private static final String DATA_INPUT_FILE = "/Users/liuchongguang/Downloads/scores.txt";
/**
* 根据实际情况修改路径,我是MAC系统
*/
private static final String DATA_OUTPUT_FILE = "/Users/liuchongguang/Downloads/scores_result.txt";
private static List<Student> loadStudents(String filePath) {
List<Student> students = new ArrayList<Student>();
InputStream is = null;
InputStreamReader isr = null;
BufferedReader br = null;
try {
is = new FileInputStream(new File(filePath));
isr = new InputStreamReader(is, "UTF-8");
br = new BufferedReader(isr);
String line = null;
while ((line = br.readLine()) != null) {
String[] properties = line.split("\\|");
students.add(new Student(properties));
}
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
try {
br.close();
isr.close();
is.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return students;
}
private static void saveStudents(String filePath, List<Student> students, Map<String, Map<Double, List<Student>>> totalStudents,
Map<String, Map<Double, List<Student>>> chineseStudents, Map<String, Map<Double, List<Student>>> mathStudents,
Map<String, Map<Double, List<Student>>> englishStudents) {
FileWriter fw = null;
BufferedWriter bw = null;
try {
File file = new File(filePath);
if (!file.exists()) {
file.createNewFile();// 不存在则创建
}
fw = new FileWriter(file, false);
bw = new BufferedWriter(fw);
for (Student student : students) {
bw.write("[学号:" + student.getCode() + "," + student.getName() + "] 语文:"
+ student.getChinese() + ",数学:" + student.getMath() + ",英语:" + student.getEnglish() +
" 总分:" + student.getTotal() + ",平均分:" + student.getAverage() + "
");
}
bw.write("
");
saveStudents(bw, chineseStudents, "语文");
saveStudents(bw, mathStudents, "数学");
saveStudents(bw, englishStudents, "英语");
saveStudents(bw, totalStudents, "总分");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
bw.close();
fw.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
private static void saveStudents(BufferedWriter bw, Map<String, Map<Double, List<Student>>> map, String language) throws Exception {
bw.write("==============================" + language + "成绩统计==============================
");
Map<Double, List<Student>> highMap = map.get("high");
Double score = (Double) highMap.keySet().toArray()[0];
List<Student> students1 = highMap.get(score);
bw.write(language + "成绩最高分:" + score + ",获得者:");
for (Student s : students1) {
bw.write("[学号:" + s.getCode() + "," + s.getName() + "] ");
}
bw.write("
");
Map<Double, List<Student>> lowMap = map.get("low");
score = (Double) lowMap.keySet().toArray()[0];
students1 = lowMap.get(score);
bw.write(language + "成绩最低分:" + score + ",获得者:");
for (Student s : students1) {
bw.write("[学号:" + s.getCode() + "," + s.getName() + "] ");
}
bw.write("
");
bw.write("
");
}
private static void calculate(List<Student> students, Map<String, Map<Double, List<Student>>> totalStudents,
Map<String, Map<Double, List<Student>>> chineseStudents,
Map<String, Map<Double, List<Student>>> mathStudents,
Map<String, Map<Double, List<Student>>> englishStudents) {
for (Student student : students) {
student.calculateTotal();
student.calculateAverage();
compare(totalStudents, student.getTotal(), student);
compare(chineseStudents, student.getChinese(), student);
compare(mathStudents, student.getMath(), student);
compare(englishStudents, student.getEnglish(), student);
}
}
private static void compare(Map<String, Map<Double, List<Student>>> map, double score, Student student) {
if (map.keySet().size() == 0) {
HashMap<Double, List<Student>> highMap = new HashMap<Double, List<Student>>();
HashMap<Double, List<Student>> lowMap = new HashMap<Double, List<Student>>();
List<Student> students = new ArrayList<Student>();
students.add(student);
highMap.put(score, students);
lowMap.put(score, students);
map.put("high", highMap);
map.put("low", lowMap);
} else {
Map<Double, List<Student>> highMap = map.get("high");
Double key = (Double) highMap.keySet().toArray()[0];
if (key == score) {
List<Student> students = highMap.get(key);
students.add(student);
} else if (key < score) {
highMap.clear();
highMap = new HashMap<Double, List<Student>>();
List<Student> students = new ArrayList<Student>();
students.add(student);
highMap.put(score, students);
map.put("high", highMap);
}
Map<Double, List<Student>> lowMap = map.get("low");
key = (Double) lowMap.keySet().toArray()[0];
if (key == score) {
List<Student> students = lowMap.get(key);
students.add(student);
} else if (key > score) {
lowMap.clear();
lowMap = new HashMap<Double, List<Student>>();
List<Student> students = new ArrayList<Student>();
students.add(student);
lowMap.put(score, students);
map.put("low", lowMap);
}
}
}
public static void main(String[] args) {
//从文件中读取学生数据
List<Student> students = loadStudents(DATA_INPUT_FILE);
//总分最高分和最低分
Map<String, Map<Double, List<Student>>> totalStudents = new HashMap<String, Map<Double, List<Student>>>();
//语文最高分和最低分
Map<String, Map<Double, List<Student>>> chineseStudents = new HashMap<String, Map<Double, List<Student>>>();
//数学最高分和最低分
Map<String, Map<Double, List<Student>>> mathStudents = new HashMap<String, Map<Double, List<Student>>>();
//英语最高分和最低分
Map<String, Map<Double, List<Student>>> englishStudents = new HashMap<String, Map<Double, List<Student>>>();
//计算结果
calculate(students, totalStudents, chineseStudents, mathStudents, englishStudents);
//保存结果至文件
saveStudents(DATA_OUTPUT_FILE, students, totalStudents, chineseStudents, mathStudents, englishStudents);
}
}
有10个学生，每个学生数据包括学号，姓名、3门课程的成绩，从键盘输入10个学生的数据，要求输出学生3门课总~
#include "stdio.h"
#include
#define SIZE 10
struct student{
char id[20];
char name[20];
int score[3];
float average;
} stud[SIZE];
void input() /* 输入学生的信息 */
{
int i;
for(i=0;i<SIZE;i++)
{
printf("第%d个学生的信息:
",i+1);
scanf("%s%s%d%d%d",stud[i].id,stud[i].name,&stud[i].score[0],&stud[i].score[1],&stud[i].score[2]);
stud[i].average=(stud[i].score[0]+stud[i].score[1]+stud[i].score[2])/3.0;
}
}
void output() /* 输出学生的信息 */
{
int i;
printf("
");
for(i=0;i<SIZE;i++)
printf("%s %s %d %d %d %3.1f
",stud[i].id,stud[i].name,stud[i].score[0],stud[i].score[1],stud[i].score[2],stud[i].average);
}
void sortput() /* 排序输出最高分的学生信息 */
{
int i,j;
struct student temp;
for(i=0;i<SIZE;i++)
{
for(j=0;j<SIZE-i-1;j++)
{
if(stud[j].average<stud[j+1].average)
{
temp=stud[j];
stud[j]=stud[j+1];
stud[j+1]=temp;
}
}
}
printf("
%s %s %d %d %d %3.1f
",stud[0].id,stud[0].name,stud[0].score[0],stud[0].score[1],stud[0].score[2],stud[0].average);
}
void main()
{
input();
output();
sortput();
}
#include
struct Student
{
char name[100];//名字
char num[100];//学号
double class1;//第一门课成绩
double class2;//第二门课成绩
double class3;//第三门课成绩
};
int main()
{
Student student[100];
for (int i = 0; i < 10; i++)//输入学生信息
{
gets(student[i].name);
getchar();//清空键盘缓冲区
gets(student[i].num);
getchar();
scanf("%lf%lf%lf",&student[i].class1,&student[i].class2,&student[i].class3);
}
for (int j = 0; j < 10; j++)//输出学生信息
{
printf("%s
%s
%lf
",student[j].name,student[j].num,(student[j].class1+student[j].class2+student[j].class3)/3.0);
}
return 0;
}
有十个学生,每个学生的数据包括学号,姓名,成绩。从键盘中输入十个学生...
答：写了一个比你需要的功能还完善的程序，在附件里，下面是运行截图:你用我的程序的时候把 #define N 1000 改为#define N 10 就可以了
有十个学生。每个学生包括学号,姓名,和三门成绩。从键盘输入十个学生的...
答：if(n<10)p1=(struct student*)malloc(len);scanf("%d,%s,%d,%d,%d",&p1->num,&p1->name,&p1->score[1],&p1->score[2],&p1->score[3]);} p2->next=null;return(head);} void main(){ struct student *p,*p3;int max=0;int i;int sum=0;p=creat(); /// while(p->ne...
C++结构体的运用
答：/ （1）职工数据包括：职工号、职工姓名、性别、年龄、工资、地址。为其定义一个结构体变量，对该变量，从键盘输入所需的具体数据，然后通过printf函数显示出来。（2）有10个学生，每个学生的数据包括学号、姓名、3门课的成绩，从键盘输入10个学生数据，要求输出每个学生3门课程总平均成绩。/ define MAX...
C语言实验题 求大神指点
答：// 注意:你所指的最高学分,是指总成绩还是单科？下面我是按单科最高学分来求的。#include<stdio.h>#define STU_NUMBER 2 // 假设只有2个学生(你可以把2改为10)#define SCORE_NUMBER 4struct StudentInfo{int stu_id;char name[10];float score[4];float average;float score_sum;};// ...
.有10名学生的数据(包括学号、姓名、和三门课程的成绩即,数学、语言...
答：大致可以这样写 include<stdio.h> include<stdlib.h> struct student{ char num[10],name[10];int cn,eng,math;}; //设置一个学生信息的结构体 main(){ int i,j;FILE *fp; //设置文件指针 struct student stu[10],temp;if((fp=fopen("c:\\data.txt","w"))==NULL) //...
有10个学生,每个学生数据包括学号,姓名,专业,班级,三门课成绩?_百度知 ...
答：要求最高者的成绩并按各种排序输出，如果是文档类型可以通过筛选的形式排列。所以一般来说是选择成绩那一个筛选以后其他会自动排好。
二、实验题目: 有10个学生,每个学生的数据包括学号,姓名,及三门课成绩...
答：include <stdio.h> define N 30 struct student { int n;char name[10];int s;};void main( ){ struct student st[N];int i, k, max;for( i=0; i<N; i++)scanf(“%d %s %d”, &st[i].n, st[i].name, &st[i].s);。。。
C语言实现:某班有10个学生,每个学生包姓名和三门成绩,编写程序,从键盘...
答：include <stdio.h> include <string.h> struct student { char name[100];int a[3];} std[10];int main(){ int i, j;student s;for ( i = 0; i < 10; i++){ scanf("%s %d %d %d",std[i].name, &std[i].a[0], &std[i].a[1], &std[i].a[2]);} for (i =...
C++,从键盘输入10个学生的信息包括学号,姓名,成绩要求按每个学生的...
答：include"stdio.h"#include#defineSIZE10structstudent{charid[20];charname[20];intscore[3];floataverage;}stud[SIZE];voidinput()/*输入学生的信息*/{inti;for(i=0;i<SIZE;i++){printf("第%d个学生的信息:\n",i+1);scanf("%s%s%d%d%d",stud[i].id,stud[i].name,&stud[i].score...
...编写一个成绩统计程序,有10个学生(每个学生包括学号、姓名、数学...
答：using System;using System.Collections.Generic;using System.Collections.ObjectModel;using System.Linq;using System.Text;using System.Threading.Tasks;namespace 解决百度知道问题_学生成绩录入问题 { class Program { static void Main(string[] args){ Console.WriteLine("请输入学生的信息：");Observa...
