libcurl的簡單使用(一)

由於項目的需要，需要使用libcurl庫進行開發，如果只是簡單的利用libcurl來獲取html的源碼，則不需要花費很多力氣去研究libcurl.
libcurl庫是很強大的。有空可以慢慢研究哦！
使用libcurl庫的流程如下：
1、首先是導入libcurl庫
2、curl_easy_init();    //初始化
3、curl_easy_setopt();    //設置選項
4、curl_easy_perform(curl);    //執行curl
5、curl_easy_cleanup(curl);    //清除curl資源

代碼中貼出了兩個接收數據的不同處理方式，大同小異！if(true)else....

 #include <stdio.h>
 #include <>
 #include 
  comment(lib,"libcurl.lib")
  comment(lib,"libcurld.lib")
  comment(lib,"libcurl_imp.lib")
  comment(lib,"libcurld_imp.lib")
   size_t GetContent(  *buffer, size_t size, size_t nmemb,  * size_t FuncCallBack( *data, size_t size, size_t nmemb,  *  GetHtmlFromUrl(  * 
 
       GetHtmlFromUrl(         
 
  GetHtmlFromUrl(  *      CURL *            errbuf[CURL_ERROR_SIZE] = {      retcode =      FILE *fp = fopen(,     curl = curl_easy_init();    
               curl_easy_setopt(curl, CURLOPT_URL, url);    
         curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);    
         curl_easy_setopt(curl, CURLOPT_HTTPGET, );             
         curl_easy_setopt(curl, CURLOPT_USERAGENT,          
         ()    
              curl_easy_setopt(curl, CURLOPT_WRITEDATA, ( *)fp);    
             curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, GetContent);    
          
              curl_easy_setopt(curl, CURLOPT_WRITEDATA, ( *)&RevBuff);    
             curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, FuncCallBack);    
          ret = curl_easy_perform(curl);    
         curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE , &retcode);    
       
       
 
    
 size_t GetContent(  *buffer, size_t size, size_t nmemb,  *      FILE *fp = (FILE *     size_t return_size =       
 size_t FuncCallBack( *data, size_t size, size_t nmemb,  *      size_t sizes = size *      (NULL ==               writerData->      }