首页 > 其他分享 >实验七

实验七

时间：2023-06-14 13:33:25浏览次数：27  
标签：fp int char STU 实验 include define

task1_1

#include<stdio.h>
#define N 7
#define M 80

typedef struct
{
    char name[M];
    char author[M];
}Book;

int main()
{
    Book x[N]={{"《雕塑家》", "斯科特.麦克劳德"},
               {"《灯塔》","克里斯多夫.夏步特" },
               {"《五号屠宰场》", "库尔特.冯内古特"},
               {"《出卖月亮的人》", "罗伯特.海因莱茵"},
               {"《大地之上》", "罗欣顿·米斯特里"},
               {"《上学记》", "何兆武"},
               {"《命运》", "蔡崇达"} };
    int i;
    FILE *fp;
    fp=fopen("datal.txt","w");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
     } 
     for(i=0;i<N;++i)
     {
         fprintf(fp,"%-20s %-20s\n",x[i].name,x[i].author);
         printf("%-20s %-20s\n",x[i].name,x[i].author);
     }
     fclose(fp);
     
     return 0;
}

task1_2

#include<stdio.h>
#define N 10
#define M 80

typedef struct
{
    char name[M];
    char author[M];
}Book;

int main()
{
    Book x[N];
    int i,n;
    
    FILE *fp;
    fp=fopen("datal.txt","r");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
     } 
    i=0;
    while(!feof(fp))
    {
        fscanf(fp,"%s%s",x[i].name,x[i].author);
        ++i;
    }
    n=i-1;
    for(i=0;i<n;++i)
       printf("%d.%-20s%-20s\n",i+1,x[i].name,x[i].author);
       
    fclose(fp); 
    
     return 0;
}

task2_1

#include<stdio.h>
#define N 7
#define M 80

typedef struct
{
    char name[M];
    char author[M];
}Book;

int main()
{
    Book x[N]={{"《雕塑家》", "斯科特.麦克劳德"},
               {"《灯塔》","克里斯多夫.夏步特" },
               {"《五号屠宰场》", "库尔特.冯内古特"},
               {"《出卖月亮的人》", "罗伯特.海因莱茵"},
               {"《大地之上》", "罗欣顿·米斯特里"},
               {"《上学记》", "何兆武"},
               {"《命运》", "蔡崇达"} };
    int i;
    FILE *fp;
    fp=fopen("data2.dat","wb");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
     } 
    fwrite(x,sizeof(Book),N,fp);
    
    fclose(fp);
     
     return 0;
}

task2_2

#include<stdio.h>
#define N 10
#define M 80

typedef struct
{
    char name[M];
    char author[M];
}Book;

int main()
{
    Book x[N];
    int i;
    
    FILE *fp;
    fp=fopen("data2.dat","rb");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
     } 
    fread(x,sizeof(Book),N,fp);
    for(i=0;i<N;++i)
       printf("%d. %-20s%-20s\n",i+1,x[i].name,x[i].author);
       
    fclose(fp);
    
    return 0;
}

task3_1

#include<stdio.h>
#define N 5
#define M 80

int main()
{
    char songs[N][M]={"Working\'s Blues",
                      "Everything Will Flow",
                      "Streets of London",
                      "Perfect Day",
                      "Philadelphia"};
    int i;
    FILE *fp;
    
    fp=fopen("data3.txt","w");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
    }
    for(i=0;i<N;++i)
    {
        fputs(songs[i],fp);
        fputs("\n",fp);
    }
    fclose(fp);
    return 0;
}

task3_2

#include<stdio.h>
#define N 5
#define M 80

int main()
{
    char songs[N][M];
    int i;
    
    FILE *fp;
    
    fp=fopen("data3.txt","r");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
    }
    for(i=0;i<N;++i)
       fgets(songs[i],80,fp);
    for(i=0;i<N;++i)
       printf("%d.%s",i+1,songs[i]);
       
    fclose(fp);
    return 0;
}

task3_3

#include<stdio.h>
int main()
{
    char ch;
    FILE *fp;
    
    fp=fopen("data3.txt","r");
    if(fp==NULL)
    {
        printf("fail to open file\n");
        return 1;
    }
    ch=fgetc(fp);
    while(ch!=EOF)
    {
        putchar(ch);
        ch=fgetc(fp); 
    }
    fclose(fp);
    return 0;
}

task4

#define _CRT_SECURE_NO_WARNINGS

#include<stdio.h>

int main(){
    char ch;
    FILE* fp;
    int i = 0;

    fp = fopen("data4.txt", "r");

    ch = fgetc(fp);
    while (ch != EOF) {
        if (ch != ' '&& ch!='\n')
            ++i;
        ch = fgetc(fp);
    }

    printf("%d", i);

    fclose(fp);

    return 0;
}

task5

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define N 10

typedef struct {
    long int id;
    char name[20];
    float objective;    // 客观题得分
    float subjective;   // 操作题得分
    float sum;
    char level[10];
} STU;

// 函数声明
void input(STU s[], int n);
void output(STU s[], int n);
void process(STU s[], int n);

int main() {
    STU stu[N];

    printf("从文件读入%d个考生信息: 准考证号，姓名，客观题得分(<=40)，操作题得分(<=60)\n", N);
    input(stu, N);

    printf("\n对考生信息进行处理: 计算总分，确定等级\n");
    process(stu, N);

    printf("\n打印考生完整信息, 并保存到文件中");
    output(stu, N);

    return 0;
}

// 从文本文件examinee.txt读入考生信息:准考证号，姓名，客观题得分，操作题得分
void input(STU s[], int n) {
    int i;
    FILE* fin;

    fin = fopen("examinee.txt", "r");
    if (fin == NULL) {
        printf("fail to open file\n");
        exit(0);
    }

    while (!feof(fin)) {
        for (i = 0; i < n; i++)
            fscanf(fin, "%ld %s %f %f", &s[i].id, s[i].name, &s[i].objective, &s[i].subjective);
    }

    fclose(fin);
}

// 输出考生完整信息: 准考证号，姓名，客观题得分，操作题得分，总分，等级
// 不仅输出到屏幕上，还写到文本文件result.txt中
void output(STU s[], int n) {
    FILE* fout;
    int i;

    // 输出到屏幕
    printf("\n");
    printf("准考证号\t姓名\t客观题得分\t操作题得分\t总分\t\t等级\n");
    for (i = 0; i < n; i++)
        printf("%ld\t\t%s\t%.2f\t\t%.2f\t\t%.2f\t\t%s\n", s[i].id, s[i].name, s[i].objective, s[i].subjective, s[i].sum, s[i].level);

    // 保存到文件 
    fout = fopen("result.txt", "w");
    if (!fout) {
        printf("fail to open or create result.txt\n");
        exit(0);
    }

    fprintf(fout, "准考证号\t\t姓名\t客观题得分\t操作题得分\t总分\t\t等级\n");

    for (i = 0; i < n; i++)
        fprintf(fout, "%ld\t\t%s\t%.2f\t\t%.2f\t\t%.2f\t\t%s\n", s[i].id, s[i].name, s[i].objective, s[i].subjective, s[i].sum, s[i].level);

    fclose(fout);
}

// 对考生信息进行处理：计算总分，排序，确定等级
void process(STU s[], int n) {
    STU tmp;
    int i, j;
   
    for (i = 0; i < n; ++i) {
        s[i].sum =s[i].objective+s[i].subjective;
    }

    for (i = 0; i < n-1; ++i) {
        for (j = 0; j < n- i-1; ++j) {
            if (s[j].sum < s[j + 1].sum) {
                tmp = s[j];
                s[j] = s[j + 1];
                s[j + 1] = tmp;
            }
        }
    }
    for (i = 0; i < n; ++i) {
        if (i <= n * 0.1)
            strcpy(s[i].level, "优秀");
        else if (i > n * 0.1 && i <= n * 0.5)
            strcpy(s[i].level, "合格");
        else
            strcpy(s[i].level, "不合格");
    }
   
}

task6

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define N 100
#define M 5
#define R1 1
#define R2 80

typedef struct {
    int id;
    char name[20];
    char class[20];
}STU;

void input(STU s[], int n);
void output(STU s[], int n);

int main() {
    STU stu[N];
    STU lucky[M];
    
    int i,num;

    input(stu, N);

    srand(time(0));
    
    for (i = 0,num=0; i < M; ++i) {
        num = rand() % (R2 - R1 + 1) + R1;
        lucky[i] = stu[num];
    }
    
    output(lucky, M);
    
    return 0;
}

void input(STU s[], int n) {
    int i;
    FILE* fin;

    fin = fopen("list.txt", "r");
    if (fin == NULL) {
        printf("fail to open file\n");
        exit(0);
    }

    while (!feof(fin)) {
        for (i = 0; i < n; i++)
            fscanf(fin, "%d %s %s", &s[i].id, s[i].name, &s[i].class);
    }

    fclose(fin);
}

void output(STU s[], int n) {
    FILE* fout;
    int i;
    
    for (i = 0; i < n; i++)
        printf("%d\t%s\t%s\n", s[i].id, s[i].name, s[i].class);

    fout = fopen("lucky.txt", "w");
    if (!fout) {
        printf("fail to open or create result.txt\n");
        exit(0);
    }

    for (i = 0; i < n; i++)
        fprintf(fout, "%d\t%s\t%s\n", s[i].id, s[i].name, &s[i].class);

    fclose(fout);
}

 

标签：fp,int,char,STU,实验,include,define
From： https://www.cnblogs.com/qpbd1/p/17479952.html

相关文章

  • 实验七
    tack4.c实验代码#include<stdio.h>#include<stdlib.h>intmain(){inti,k=0;charch;FILE*fp;fp=fopen("data4.txt","r");;if(fp==NULL){printf("failtoopenfile\n");return......
  • 实验七
    test4代码：#include<stdio.h>#include<stdlib.h>intmain(){intnum=0;charch;FILE*fp;fp=fopen("data4.txt","r");if(fp==NULL){printf("fail\n");return1;}while(!feof(fp)){......
  • 实验七
    task1classAccount:def__init__(self,name,account_number,initial_amount=10):self._name=nameself._card_no=account_numberself._balance=initial_amountdefdeposit(self,amount):self._balance+=amoun......
  • 实验七
    task1classAccount:def__init__(self,name,account_number,initial_amount=10):self._name=nameself._card_no=account_numberself._balance=initial_amountdefdeposit(self,amount):self._balance+=amountde......
  • 实验7 面向对象编程与内置模块
    实验任务1task1.py1classAccount:23def__init__(self,name,account_number,initial_amount=10):4self._name=name5self._card_no=account_number6self._balance=initial_amount7defdeposit(self,amount):......
  • 实验7 面向对象编程与内置模块
    task1源代码'''银行账户数据：持卡人姓名、账号、当前余额操作：取款、存款、打印账户信息、返回账户余额'''classAccount:'''一个模拟银行账户的简单类'''def__init__(self,name,account_number,initial_amount=10):''......
  • 实验7 面向对象编程与内置模块
    实验任务1task1.py1classAccount:23def__init__(self,name,account_number,initial_amount=10):4self._name=name5self._card_no=account_number6self._balance=initial_amount7defdeposit(self,amount):......
  • 实验7 面向对象编程与内置模块
    task1源代码：classAccount:def__init__(self,name,account_number,initial_amount=10):self._name=nameself._card_no=account_numberself._balance=initial_amountdefdeposit(self,amount):self._balance+=amount......
  • Kong入门学习实践(2)实验环境搭建
    最近在学习Kong网关，因此根据老习惯，我会将我的学习过程记录下来，一来体系化整理，二来作为笔记供将来翻看。由于我司会直接使用Kong企业版，学习过程中我会使用Kong开源版。本篇，我们学习如何快速搭建一个Kong实验环境。搭建方式目前，我们可以选择多种部署方式，包括：宿主机部署、Docker部......
  • 实验7
    task1'''银行账户数据：持卡人姓名、账号、当前余额操作：取款、存款、打印账户信息、返回账户余额'''classAccount:'''一个模拟银行账户的简单类'''def__init__(self,name,account_number,initial_amount=10):'''构造新账......

赞助商

阅读排行

网站主页关于我们联系我们网站地图

本网站内容转载自其他媒体，侵权联系[admin##ips99.com]。

Copyright © 2020-2023 IPS99 版权所有 IPS99