如何找出一个单词在一个句子中出现的次数[C代码]？

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

int countWordOccurrences(char sentence[], char word[]) {
    int count = 0;
    char *token;

    // 使用strtok函数将句子分割成单词
    token = strtok(sentence, " ");

    // 遍历每个单词并比较是否与目标单词相同
    while (token != NULL) {
        if (strcmp(token, word) == 0) {
            count++;
        }
        token = strtok(NULL, " ");
    }

    return count;
}

int main() {
    char sentence[100];
    char word[20];

    printf("请输入一个句子：");
    fgets(sentence, sizeof(sentence), stdin);

    printf("请输入要查找的单词：");
    fgets(word, sizeof(word), stdin);

    // 去除输入字符串中的换行符
    sentence[strcspn(sentence, "\n")] = '\0';
    word[strcspn(word, "\n")] = '\0';

    int occurrences = countWordOccurrences(sentence, word);
    printf("单词 \"%s\" 在句子中出现的次数为：%d\n", word, occurrences);

    return 0;
}