将网页内容写入本地

实例代码：

<pre name="code" class="html">#include<iostream>#include <curl/curl.h>using namespace std;#pragma comment(lib,"libcurl.lib")  FILE *fp;  //定义FILE类型指针//回调函数，CURLOPT_WRITEFUNCTION而构造的size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream){int written = fwrite(ptr, size, nmemb, (FILE *)fp);return written;}int main(){CURL *curl;CURLcode res;curl = curl_easy_init();curl_easy_setopt(curl, CURLOPT_URL, "www.baidu.com");if ((fp = fopen("D:\\baidu.txt", "w")) == NULL){curl_easy_cleanup(curl);}////CURLOPT_WRITEFUNCTION 将后继的动作交给write_data函数处理curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);curl_easy_setopt(curl, CURLOPT_WRITEDATA fp);res = curl_easy_perform(curl);if (res != CURLE_OK)//如果获取页面信息出错，则打印错误信息，并关闭连接{fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));curl_easy_cleanup(curl);return false;}fclose(fp);curl_easy_cleanup(curl);system("pause");}