以编程方式读取网页

I want to write a program in C/C++ that will dynamically read a web page and extract information from it. As an example imagine if you wanted to write an application to follow and log an ebay auction. Is there an easy way to grab the web page? A library which provides this functionality? And is there an easy way to parse the page to get the specific data?

推荐答案

看看 cURL 库:

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

 int main(void)
 {
   CURL *curl;
   CURLcode res;

   curl = curl_easy_init();
   if(curl) {
     curl_easy_setopt(curl, CURLOPT_URL, "curl.haxx.se");
     res = curl_easy_perform(curl);
      /* always cleanup */
    curl_easy_cleanup(curl);
   }
   return 0;
 }

顺便说一句，如果不严格要求 C++.我鼓励您尝试 C# 或 Java.这要容易得多，而且有一种内置方法.