如何在C中创建.txt文件中每个单词的结构？

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

typedef struct {
    char word[100];
    int frequency;
} Word;

void processWords(const char* filename) {
    FILE* file = fopen(filename, "r");
    if (file == NULL) {
        printf("无法打开文件\n");
        return;
    }

    // 统计单词频率的哈希表
    Word* wordList = (Word*)malloc(sizeof(Word) * 1000);
    int wordCount = 0;

    // 逐行读取文件内容
    char line[1000];
    while (fgets(line, sizeof(line), file)) {
        char* token = strtok(line, " \t\n"); // 使用空格、制表符和换行符作为分隔符
        while (token != NULL) {
            // 将单词转换为小写
            for (int i = 0; token[i]; i++) {
                token[i] = tolower(token[i]);
            }

            // 检查单词是否已存在于哈希表中
            int found = 0;
            for (int i = 0; i < wordCount; i++) {
                if (strcmp(wordList[i].word, token) == 0) {
                    wordList[i].frequency++;
                    found = 1;
                    break;
                }
            }

            // 如果单词不存在，则将其添加到哈希表中
            if (!found) {
                strcpy(wordList[wordCount].word, token);
                wordList[wordCount].frequency = 1;
                wordCount++;
            }

            token = strtok(NULL, " \t\n");
        }
    }

    fclose(file);

    // 将结果写入新的.txt文件
    FILE* outputFile = fopen("output.txt", "w");
    if (outputFile == NULL) {
        printf("无法创建输出文件\n");
        free(wordList);
        return;
    }

    for (int i = 0; i < wordCount; i++) {
        fprintf(outputFile, "单词：%s，频率：%d\n", wordList[i].word, wordList[i].frequency);
    }

    fclose(outputFile);
    free(wordList);
}

int main() {
    const char* filename = "input.txt";
    processWords(filename);
    return 0;
}