1

首先，我想向大家介绍一下自己，因为我是论坛的新手；我的名字是 Max，我是 C 的初学者。我无法创建一个可以执行以下操作的程序：

  1. 为汽车数据创建一个数组。
  2. 为鸡肉数据创建三个并行数组，读取时跳过输入文件中的行。
  3. 为污染数据创建一个字符和整数数组，最后
  4. 允许用户选择如何显示数据（升序或降序）。

数据可以在下面找到：
https://github.com/untamedspud/Lab-Assignment-8-data-files/blob/master/motorway.txt https://github.com/untamedspud/Lab-Assignment-8-数据文件/blob/master/pollution.txt

我非常感谢你们能给我的任何帮助，如果您有任何问题，请告诉我。

这是我当前的非功能代码，该代码将从文本文件中读取数据并将数据存储到适当的数组中：

#include <stdio.h>
#include <stdlib.h>
#include "/home/TU/tue44432/include/selectionSort.h"


// Using a C global constant variable.
// The only global variables you can use in your program are const.
const char *filename = "pollution.txt";

int main()
{
    FILE *F;                // C file structure
    int i = 0;
    int level[30];
    int pl;                 // holds the first value we read in from the file
    char city[30];          // holds the second value we read in from the file

    // associate the internal file name, F, with the external file name, pop.txt.
    F = fopen( filename, "r" );

    fscanf( F, "%d ", &pl );
    fgets( city, 30, F );
    chomp( city );                     // removes the newline at the end of the line         read in
    level[0] = pl;

    while ( ! feof( F ) ) {
//          printf("Pollution level is %d in %s.\n", pl, city);
            printf("Pollution level is %d in %s.\n", level[i], city);
            fscanf( F, "%d", &pl );    // scan in the first value from the file
            fgets( city, 30, F );      // reads in UP TO 30 characters, stopping at the
            chomp( city );
            i += 1;
            level[i] = pl;


//              printf("loop controll variable i == %d.\n", i);



}

    fclose( F );

    return EXIT_SUCCESS;
}
4

0 回答 0