C++ 如何只获取字符串的第一个单词，然后将其与c中的另一个单词进行比较

try 使用以下代码:

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

#define MAX_WORD_LENGTH 100

int main() {
    FILE *file;
    char filename[] = "your_file.txt"; // Replace with your file name
    char line[MAX_WORD_LENGTH];
    char word[MAX_WORD_LENGTH];

    // Define the words to compare
    char targetWords[][MAX_WORD_LENGTH] = {"apple", "banana", "orange"};
    int wordCount[sizeof(targetWords) / MAX_WORD_LENGTH] = {0};

    file = fopen(filename, "r");
    if (file == NULL) {
        perror("Error opening file");
        return 1;
    }

    while (fgets(line, sizeof(line), file) != NULL) {
        // Extract the first word from the line
        sscanf(line, "%s", word);

        // Compare the word with the target words
        for (int i = 0; i < sizeof(targetWords) / MAX_WORD_LENGTH; ++i) {
            if (strcmp(word, targetWords[i]) == 0) {
                wordCount[i]++;
                break; // No need to check further if a match is found
            }
        }
    }

    fclose(file);

    // Display the results
    for (int i = 0; i < sizeof(targetWords) / MAX_WORD_LENGTH; ++i) {
        printf("%s: %d\n", targetWords[i], wordCount[i]);
    }

    return 0;
}