如何在C/C++中获取HTML

#include<iostream>
#include <curl/curl.h>

static size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp) {
    ((std::string*)userp)->append((char*)contents, size * nmemb);
    return size * nmemb;
}

int main(void) {
    CURL *curl;
    CURLcode res;
    std::string htmlContent;

    curl = curl_easy_init();
    if(curl) {
        curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com");
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &htmlContent);

        res = curl_easy_perform(curl);

        if(res != CURLE_OK) {
            std::cerr << "Error: "<< curl_easy_strerror(res)<< std::endl;
        }

        curl_easy_cleanup(curl);
    }

    std::cout << "HTML content: "<< std::endl<< htmlContent<< std::endl;

    return 0;
}

g++ get_html.cpp -o get_html -lcurl

./get_html