我需要将本地图片上传值MySQL数据库，请问代码是怎样的

你可以使用以下代码将本地图片上传到MySQL数据库：

#include <stdio.h>
#include <stdlib.h>
#include <mysql/mysql.h>

int main(int argc, char **argv) {
    MYSQL *conn;
    MYSQL_RES *res;
    MYSQL_ROW row;

    char *server = "localhost";
    char *user = "username";
    char *password = "password";
    char *database = "database_name";

    conn = mysql_init(NULL);

    if (!mysql_real_connect(conn, server, user, password, database, , NULL, )) {
        fprintf(stderr, "%s\n", mysql_error(conn));
        exit(1);
    }

    FILE *fp;
    char *filename = "image.jpg";
    fp = fopen(filename, "rb");

    if (fp == NULL) {
        fprintf(stderr, "Cannot open image file\n");
        exit(1);
    }

    fseek(fp, , SEEK_END);
    long file_size = ftell(fp);
    fseek(fp, , SEEK_SET);

    char *image_data = (char *) malloc(file_size);

    if (fread(image_data, file_size, 1, fp) != 1) {
        fprintf(stderr, "Cannot read image file\n");
        exit(1);
    }

    fclose(fp);

    char *query = "INSERT INTO images (image_data) VALUES (?)";

    MYSQL_STMT *stmt = mysql_stmt_init(conn);

    if (!stmt) {
        fprintf(stderr, "mysql_stmt_init(), out of memory\n");
        exit(1);
    }

    if (mysql_stmt_prepare(stmt, query, strlen(query))) {
        fprintf(stderr, "mysql_stmt_prepare(), INSERT failed\n");
        fprintf(stderr, "%s\n", mysql_stmt_error(stmt));
        exit(1);
    }

    MYSQL_BIND bind[1];

    memset(bind, , sizeof(bind));

    bind[].buffer_type = MYSQL_TYPE_LONG_BLOB;
    bind[].buffer = image_data;
    bind[].buffer_length = file_size;

    if (mysql_stmt_bind_param(stmt, bind)) {
        fprintf(stderr, "mysql_stmt_bind_param() failed\n");
        fprintf(stderr, "%s\n", mysql_stmt_error(stmt));
        exit(1);
    }

    if (mysql_stmt_execute(stmt)) {
        fprintf(stderr, "mysql_stmt_execute(), INSERT failed\n");
        fprintf(stderr, "%s\n", mysql_stmt_error(stmt));
        exit(1);
    }

    mysql_stmt_close(stmt);
    mysql_close(conn);

    return ;
}

请注意，这只是一个示例代码，你需要根据你的实际情况进行修改。