Question

c语言如何向网站提交信息（有没有像html的post的提交方式）最好给个例子

谢谢，最好找个例子

Answer 1

用socket，建立一个socket连接，按HTTP协议的要求发送过去一个POST请求字符串就行了。
下面是一段搜来的代码：
#include <stdio.h>
#include "winsock.h"
#pragma comment(lib,"ws2_32.lib")
#define winsock_version 0x0101
void main()
{
//If it works,it is written by masterz,otherwise I don't know who write it.
SOCKADDR_IN saServer;
LPHOSTENT lphostent;
WSADATA wsadata;
SOCKET hsocket;
int nRet;
const char* host_name="www.csdn.net";
char* req="POST /member/logon.asp HTTP/1.0\r\n"
"From: local\r\n"
"User-Agent: post_test/1.0\r\n"
"Content-Type: application/x-www-form-urlencoded\r\n"
"Content-Length: 34\r\n\r\n"
"name=XXXXXX&pass=XXXXXXXXX&type=1"; //if you change xxx, you may have to change content-length correspondingly
if(WSAStartup(winsock_version,&wsadata))
printf("can't initial socket");
lphostent=gethostbyname(host_name);
if(lphostent==NULL)
printf("lphostent is null");
hsocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
saServer.sin_family = AF_INET;
// Use def. now, need to handle general case
saServer.sin_port = htons(80);
saServer.sin_addr = *((LPIN_ADDR)*lphostent->h_addr_list);
nRet = connect(hsocket, (LPSOCKADDR)&saServer, sizeof(SOCKADDR_IN));
if (nRet == SOCKET_ERROR)
{
printf("can't connect");
closesocket(hsocket);
return;
}
else
printf("connected with %s\n",host_name);
nRet = send(hsocket, req, strlen(req), 0);
if (nRet == SOCKET_ERROR)
{
printf("send() failed");
closesocket(hsocket);

}
else
printf("send() OK\n");
char dest[1000];
nRet=1;
while(nRet>0)
{
nRet=recv(hsocket,(LPSTR)dest,sizeof(dest),0);
if(nRet>0)
dest[nRet]=0;
else
dest[0]=0;
printf("\nReceived bytes:%d\n",nRet);
printf("Result:\n%s",dest);
}
}

Answer 2

没有直接的，最好用java script