用libxml2打印出漂亮的图片？

#include <stdio.h>
#include <libxml/parser.h>
#include <libxml/tree.h>

int main() {
    // 创建一个XML文档
    xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
    xmlNodePtr root = xmlNewNode(NULL, BAD_CAST "image");
    xmlDocSetRootElement(doc, root);

    // 添加图片属性
    xmlNewProp(root, BAD_CAST "width", BAD_CAST "800");
    xmlNewProp(root, BAD_CAST "height", BAD_CAST "600");

    // 创建一个漂亮的图片节点
    xmlNodePtr imageNode = xmlNewChild(root, NULL, BAD_CAST "picture", NULL);
    xmlNodePtr captionNode = xmlNewChild(imageNode, NULL, BAD_CAST "caption", BAD_CAST "Beautiful Picture");
    xmlNodePtr urlNode = xmlNewChild(imageNode, NULL, BAD_CAST "url", BAD_CAST "http://example.com/picture.jpg");

    // 将XML文档保存到文件
    xmlSaveFormatFileEnc("picture.xml", doc, "UTF-8", 1);

    // 释放资源
    xmlFreeDoc(doc);
    xmlCleanupParser();

    printf("漂亮的图片已经保存到picture.xml文件中。\n");

    return 0;
}