用C++写一个post简单例子，不用MFC和VS的东西

要求就是写一个post的例子，目的是给手机端发送一个短信验证码之类的功能，网址可以先用百度，求大神帮帮忙，帮忙写个小例子。
c++ post 不能用VS的东西写

那就用libcurl等第三方库，不然自己从头实现，工作量不小

http://blog.csdn.net/e21105834/article/details/12967471

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

#define POSTURL    "http://www.xiami.com/member/login"  
#define POSTFIELDS "email=myemail@163.com&password=mypassword&autologin=1&submit=登 录&type="  
#define FILENAME   "curlposttest.log"  

size_t write_data(void* buffer,size_t size,size_t nmemb,void *stream)  
{  
    FILE *fptr = (FILE*)stream;  
    fwrite(buffer,size,nmemb,fptr);  
    return size*nmemb;  
}  

int main(int argc,char *argv[])  
{  
    CURL *curl;  
    CURLcode res;  
    FILE* fptr;  
    struct curl_slist *http_header = NULL;  

    if ((fptr = fopen(FILENAME,"w")) == NULL)  
    {  
        fprintf(stderr,"fopen file error:%s\n",FILENAME);  
        return -1;  
    }  

    curl = curl_easy_init();  
    if (!curl)  
    {  
        fprintf(stderr,"curl init failed\n");  
        return -1;  
    }  

    curl_easy_setopt(curl,CURLOPT_URL,POSTURL); //url地址  
    curl_easy_setopt(curl,CURLOPT_POSTFIELDS,POSTFIELDS); //post参数  
    curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION,write_data); //对返回的数据进行操作的函数地址  
    curl_easy_setopt(curl,CURLOPT_WRITEDATA,fptr); //这是write_data的第四个参数值  
    curl_easy_setopt(curl,CURLOPT_POST,1); //设置问非0表示本次操作为post  
    curl_easy_setopt(curl,CURLOPT_VERBOSE,1); //打印调试信息  
    curl_easy_setopt(curl,CURLOPT_HEADER,1); //将响应头信息和相应体一起传给write_data  
    curl_easy_setopt(curl,CURLOPT_FOLLOWLOCATION,1); //设置为非0,响应头信息location  
    curl_easy_setopt(curl,CURLOPT_COOKIEFILE,"/Users/zhu/CProjects/curlposttest.cookie");  

    res = curl_easy_perform(curl);  

    if (res != CURLE_OK)  
    {  
        switch(res)  
        {  
            case CURLE_UNSUPPORTED_PROTOCOL:  
                fprintf(stderr,"不支持的协议,由URL的头部指定\n");  
            case CURLE_COULDNT_CONNECT:  
                fprintf(stderr,"不能连接到remote主机或者代理\n");  
            case CURLE_HTTP_RETURNED_ERROR:  
                fprintf(stderr,"http返回错误\n");  
            case CURLE_READ_ERROR:  
                fprintf(stderr,"读本地文件错误\n");  
            default:  
                fprintf(stderr,"返回值:%d\n",res);  
        }  
        return -1;  
    }  

    curl_easy_cleanup(curl);  
}