如何在C中读取CSV文件

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

#define MAX_ROWS 100
#define MAX_COLS 100

typedef struct {
    char data[MAX_ROWS][MAX_COLS][256];
    int rows;
    int cols;
} CSVData;

void readCSV(const char* filename, CSVData* csvData) {
    FILE* file = fopen(filename, "r");
    if (file == NULL) {
        printf("无法打开文件 %s\n", filename);
        exit(1);
    }

    char line[1024];
    int row = 0;
    int col = 0;

    while (fgets(line, sizeof(line), file)) {
        col = 0;
        char* token = strtok(line, ",");
        while (token != NULL) {
            strcpy(csvData->data[row][col], token);
            token = strtok(NULL, ",");
            col++;
        }
        row++;
    }

    csvData->rows = row;
    csvData->cols = col;

    fclose(file);
}

int main() {
    CSVData csvData;
    readCSV("data.csv", &csvData);

    for (int i = 0; i < csvData.rows; i++) {
        for (int j = 0; j < csvData.cols; j++) {
            printf("%s\t", csvData.data[i][j]);
        }
        printf("\n");
    }

    return 0;
}