Question

如何读取整个数组的数组，直到来自文件格式的换行符为：

苹果

葡萄

bananna

我希望每个单词都从文件中存储为数组中的单独值。我怎么能这样做？

全部谢谢

Answer 1

您可以使用fgets功能，例如

char word[100][100];
int i = 0;

while( fgets( word[i++], 80, file) )
  ;

Answer 2

试试这个

char *my_strchr(char * string_ptr, char find)
{
    while (*string_ptr != find) {

       /* Check for end */

       if (*string_ptr == '\0')
           return (NULL);       /* not found */

        ++string_ptr;
    }
    return (string_ptr);        /* Found */
}

int words_count(char * string_ptr, char find)
{
    int i = 0;
    while (*string_ptr != '\0') {

       /* Check for end */

       if (*string_ptr == find)
           ++i;       /* not found */

        ++string_ptr;
    }
    return (i+1);        /* Found */
}

int main()
{
    char line[80];      /* The input line */
    char *first_ptr;    /* pointer to the first name */
    char *last_ptr;     /* pointer to the last name */
    // char words[3][80];
    char **words;
    int cnt;

    // fgets(line, sizeof(line), stdin);
    static const char filename[] = "C:\\Diginity-Works\\LineReader\\debug\\data.txt";
    FILE *file = fopen ( filename, "r" );

    while ( fgets ( line, sizeof line, file ) != NULL ) // read a line 
    {   
        /* Get rid of trailing newline */
        line[strlen(line)-1] = '\0';        
        cnt = words_count(line, ' ');

        // for the "first level"
        words = (char **) malloc(cnt * sizeof *words);

        // In the second level
        for(int i=0;i<cnt;++i)
            words[i]=(char*)malloc(80);// i assume that max word length is 80


        last_ptr = line;    /* last name is at beginning of line */
        for(int i=0; i < cnt; ++i){
            first_ptr = my_strchr(line, ' ');      /* Find space */

            /* Check for an error */
            if (first_ptr == NULL) {
                strcpy(words[i], last_ptr);
                break;
            }

            *first_ptr = '\0';  /* Zero out the slash */

            ++first_ptr;        /* Move to first character of name */
            strcpy(words[i], last_ptr);
            strcpy(line, first_ptr);
        }

        for(int i=0; i < cnt; ++i)
            printf("%d : %s \n", i, words[i]);
    }

    return (0);
}

将Word从文本文件读入C中的数组

2 个答案: