SendHttpPost(string& strUrl, string& strPost, string& strResponse， int nTimeOut)

{

	CURLcode res;

	CURL* curl = curl_easy_init();

	if(NULL == curl)

	{

		return CURLE_FAILED_INIT;

	}

	if (nTimeOut < 60)

	{

		nTimeOut = 60;

	}

	curl_easy_setopt(curl, CURLOPT_URL, strUrl.c_str());

	curl_easy_setopt(curl, CURLOPT_POST, 1);

	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, strPost.c_str());

	curl_easy_setopt(curl, CURLOPT_READFUNCTION, NULL);

	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, OnWriteData);

	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&strResponse);

	curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);

	curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, nTimeOut);

	curl_easy_setopt(curl, CURLOPT_TIMEOUT, m_nMD5TimeOut);

	res = curl_easy_perform(curl);

	curl_easy_cleanup(curl);

	return res;

}