首页 > 其他分享 >实验7

实验7

时间:2023-12-20 20:25:37浏览次数:26  
标签:得分 int st STU 实验 pass t%

#include<stdio.h>
#define M 80
int main()
{
    FILE *fp;
    char ch;
    fp = fopen("e:\\data4.txt","r");
    if(fp == NULL)
    printf("fail to open file\n");
    else
    {
    while(1){
    ch = fgetc(fp);
    if(ch == EOF)
    break;
    else
    putchar(ch);
}}
    return 0;
}

#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;          // 总分
    char ans[20];       // 考试结果
} STU;
 
// 函数声明
void finput(STU st[], int n);
void foutput(STU st[], int n);
void output(STU st[], int n);
int process(STU st[], int n, STU st_pass[]);
 
int main() {
    STU stu[N], stu_pass[N];
    int cnt;
    double pass_rate;
 
 
    printf("从文件读入%d个考生信息...\n", N);
    finput(stu, N);
 
    printf("\n对考生成绩进行统计...\n");
    cnt = process(stu, N, stu_pass);
 
    printf("\n通过考试的名单:\n");
    output(stu_pass, cnt);      // 输出到屏幕
    foutput(stu_pass, cnt);    // 输出到文件
 
    pass_rate = 1.0 * cnt / N;
    printf("\n本次等级考试通过率: %.2f%%\n", pass_rate*100);
    system("pause");
    return 0;
}
 
// 把通过考试的考生完整信息输出到屏幕上
// 准考证号,姓名,客观题得分,操作题得分,总分,结果
void output(STU st[], int n) {
    int i;
     
    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结果\n");
    for (i = 0; i < n; i++)
        printf("%ld\t\t%s\t%.2f\t\t%.2f\t\t%.2f\t\t%s\n", st[i].id, st[i].name, st[i].objective, st[i].subjective, st[i].sum, st[i].ans);
}
 
// 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 finput(STU st[], int n) {
    int i;
    FILE *fin;
 
    fin = fopen("e:\\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", &st[i].id, st[i].name, &st[i].objective, &st[i].subjective);
    }
 
    fclose(fin);
}
 
// 把通过考试的考生完整信息写入文件list_pass.txt
// 准考证号,姓名,客观题得分,操作题得分,总分,结果
void foutput(STU s[], int n) {
    FILE *fout;
    int i;
     
    // 保存到文件
    fout = fopen("e:\\list_pass.txt", "w");
    if (!fout) {
        printf("fail to open or create list_pass.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结果\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].ans);
 
    fclose(fout);
}
 
 
 
// 对考生信息进行处理:计算每位考生考试总分、结果;统计考试通过的人数
int process(STU st[], int n, STU st_pass[]) {
    int i,j = 0;
    for(i = 0 ; i < n ; i++){
    st[i].sum = st[i].objective + st[i].subjective;
    if(st[i].sum>=60){
    strcpy(st[i].ans,"通过");
    st_pass[j++]=st[i];}
    else
    strcpy(st[i].ans,"不通过");}
    return j;
}

 

标签:得分,int,st,STU,实验,pass,t%
From: https://www.cnblogs.com/PomPomDyx/p/17917401.html

相关文章

  • 实验七
    task4.c1#include<stdio.h>23intmain(){4FILE*fp;56intk=0;7charch;89fp=fopen("data4.txt","r");1011if(fp==NULL){12printf("failtoopenfile\n");13......
  • 实验七
    实验四源代码#include<stdio.h>#defineM80intmain(){ FILE*fp; charch; fp=fopen("e:\\data4.txt","r"); if(fp==NULL) printf("failtoopenfile\n"); else { while(1){ ch=fgetc(fp); if(ch==EOF) break;......
  • 实验7 文件应用编程
    实验任务4:文件简单应用程序源码1#include<stdio.h>23intmain(){4FILE*fp;5longsize;6intc;7intcount=0;8fp=fopen("C:\\data\\data4.txt","rb");9while((c=fgetc(fp))!=EOF){10......
  • 实验7 文件应用编程
    task4源代码1#include<stdio.h>2#include<stdlib.h>34intmain(){5FILE*fp;6charch;7intcnt=0;89fp=fopen("d:\\date\\data4.txt","r");10if(fp==NULL){11printf("......
  • 实验7
    #define_CRT_SECURE_NO_WARNINGS#include<stdio.h>#include<stdlib.h>#include<stdio.h>#include<string.h>#defineN100#defineM100intmain(){FILE*fp;fp=fopen("data4.txt","r");if(fp==......
  • 实验7 文件应用编程
    一,实验目的二,实验准备三,实验内容1,实验任务1task1_1.c1//将图书信息写入文本文件data1.txt23#include<stdio.h>45#defineN8067typedefstruct{8charname[N];//书名9charauthor[N];//作者10}Book;1112intmain(){......
  • 实验七
    4.任务4#include<stdio.h>intmain(){inti=0;chars;FILE*fp;fp=fopen("D:\\hhh\\data4.txt","r");while(1){s=fgetc(fp);if(s==EOF){break;}elseif(s==......
  • 实验7
    task4源代码:1#include<stdio.h>23intmain()4{5FILE*fp;6fp=fopen("d:\\data4.txt","r");7if(fp==NULL){8printf("failtoopenfile.\n");9return1;10}1112......
  • 实验七
    task.41.源代码1#include<stdio.h>2#include<stdlib.h>3#include<string.h>4intmain()5{6chara;7intcount=0;8FILE*fp;9fp=fopen("data4.txt","r");10if(fp==NULL)11{1......
  • 实验七
    实验4#include<stdio.h>intmain(){chara;intcount=0;FILE*fp;fp=fopen("data4.txt","r");if(fp==NULL){printf("failtoopen\n");return1;}while(1){a=......