C++获取天气预报的问题

laobingyouzi 2008-10-07 08:20:36
这是我在网上下载的参考代码，如下：运行结果却不正确，不知哪里有问题，请高手指点一二
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<windows.h>
#pragma comment(lib,"ws2_32.lib")
struct Weather_Info
{
char city[50];
char weather[50];
char temp[50];
char wind[50];
};
const char* URL="http://weather.tq121.com.cn/mapanel/index1.php?city=%s";
const char* weather_tag="<td width=\"160\" align=\"center\" valign=\"top\" class=\"weather\">";
const char* temp_tag="<td width=\"160\" align=\"center\" valign=\"top\" class=\"weatheren\">";
const char* wind_tag="<td width=\"153\" valign=\"top\"><span class=\"big-cn\">";
bool GetWeather(Weather_Info&wi,char *html)
{
if(html==NULL)
return false;
char *temp=NULL;
if((temp=strstr(html,weather_tag))==NULL)
return false;

temp+=strlen(weather_tag);
memcpy(wi.weather,temp,strlen(temp)-strlen(strstr(temp,"<")));
if((temp=strstr(html,temp_tag))==NULL)
return false;
temp+=strlen(temp_tag);
memcpy(wi.temp,temp,strlen(temp)-strlen(strstr(temp,"<")));
if((temp=strstr(html,wind_tag))==NULL)
return false;
temp+=strlen(wind_tag);
memcpy(wi.wind,temp,strlen(temp)-strlen(strstr(temp,"<")));
return true;
}
bool initsocket()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return false;
}

if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
WSACleanup( );
return false;
}
return true;

}
struct SearchInfo//ËÑË÷½á¹¹Ì嶨Òå
{
char host[256];//Ö÷»úÃû
unsigned int port;//¶Ë¿ÚºÅ
char filename[256];//ÒªÎļþÃû
char outfile[50];//±£´æÎļþÃû
};
void GetUrls(char *html);//½âÎöhtml´úÂëÖеÄURL
bool initsocket();//³õʼ»¯Ì×½Ó×Ö
bool initargs(SearchInfo &outinfo,int argc,char **args);//½âÎöÊäÈëÃüÁîÐвÎÊý
const char *HTTP_STR="http://";
const char* HTTP_REQUEST_HEADER= //HTTPÇëÇóÍ·
"GET %s HTTP/1.1\r\nAccept:*/*\r\n\
Accept-Language:zh-cn\r\n\
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\n\
Host:%s\r\n\r\n";

bool initargs(SearchInfo &outinfo,const char*city)
{
memset(&outinfo,0,sizeof(SearchInfo));//³õʼ»¯

char *temp=new char[256];
memset(temp,0,256);
sprintf(temp,URL,city);
printf(temp);
temp=(strstr(temp,HTTP_STR)!=NULL)?temp+strlen(HTTP_STR):temp;//È¥µôÇ°ÃæµÄhttp£º\\
// printf("Url:%s\n",temp);
strcpy(outinfo.filename,strstr(temp,"/")!=NULL?strstr(temp,"/"):"/");//·ÖÎö³öÒªÏÂÔØÎļþÃû
int length=strstr(temp,"/")==NULL?strlen(temp):(strlen(temp)-strlen(strstr(temp,"/")));
//·ÖÎö³öÖ÷»úÃûµÄ³¤¶Èwww.zzti.edu.cn/index.html-/index.html
memcpy(outinfo.host,temp,length);//½âÎö³öÖ÷»úÃû
if((temp=strstr(outinfo.host,":"))!=NULL)//½âÎö¶Ë¿Ú
{
temp++;
outinfo.port=atoi(temp);
}
else//Èç¹ûûÓÐÊäÈëʹÓÃĬÈÏ80
{
outinfo.port=80;
}
delete temp;
return true;

}

char* GetFile(const SearchInfo * psi)
{
if(psi==NULL)
{
return NULL;
}
unsigned long serverip=0;//·þÎñÆ÷IP
if((serverip=inet_addr(psi->host))==INADDR_NONE)//Èç¹ûÖ÷»úÃû²»ÊÇIP
{
hostent *phst=gethostbyname(psi->host);//ÓÃDNS½âÎöÖ÷»úIP
if(phst==NULL)//Èç¹û½âÎöʧ°Ü·µ»Øfalse
return NULL;
//IN_ADDR in;
if(phst->h_addr_list[0]!=0)//½âÎö³É¹¦Ê¹ÓÃÖ÷»úµÚÒ»¸öIP
{
memcpy(&serverip,phst->h_addr_list[0],phst->h_length);
// in.S_un.S_addr=serverip;
}
// printf("IP:%s",inet_ntoa(in));
}
SOCKET s=socket(AF_INET,SOCK_STREAM,0);//´´½¨socket£¨TCPÁ¬½Ó£©
if(s==INVALID_SOCKET)//´´½¨Ê§°Ü
{
printf("Create socket Error!Error Code:%d\n",WSAGetLastError());
return NULL;
}
SOCKADDR_IN server_addr;//·þÎñÆ÷address
server_addr.sin_addr.S_un.S_addr=serverip;
server_addr.sin_family=AF_INET;
server_addr.sin_port=htons(psi->port);
memset(server_addr.sin_zero,0,sizeof(server_addr.sin_zero));
printf("Begin Connect Server :%s On:%d\n",inet_ntoa(server_addr.sin_addr),psi->port);
//¿ªÊ¼Á¬½Ó·þÎñÆ÷·¢³öÇëÇó
if(SOCKET_ERROR==connect(s,(const sockaddr*)&server_addr,sizeof(SOCKADDR_IN)))
{
printf("Connect Server Error!Error Code:%d\n",WSAGetLastError());
closesocket(s);
//Èç¹ûÁ¬½Óʧ°Ü
return NULL;
}
printf("Connect Server OK!\n");
char buffer_sendmsg[256]={0};
sprintf(buffer_sendmsg,HTTP_REQUEST_HEADER,psi->filename,psi->host);//¹¹ÔìHTTPÇëÇó
//printf(buffer_sendmsg);
if(send(s,buffer_sendmsg,256,0)==SOCKET_ERROR)//Ïò·þÎñÆ÷·¢ËÍÇëÇó
{
printf("Send Request To Server Error!Error Code:%d\n",WSAGetLastError());
closesocket(s);
//·¢ËÍʧ°Ü
return NULL;
}
//´ò¿ªÎļþ¿ªÊ¼±£´æhtml´úÂë

int len=0;
char buffer_recv[1024]={0};//½ÓÊÕhtmlµÄbuffer

int sumlen=0;//htmlµÄ³¤¶È
char *html=(char*)malloc(sizeof(char)*1);//×ܵÄhtml×Ö·û´®

while((len=recv(s,buffer_recv,1024,0))!=0)
{
if(len==SOCKET_ERROR)
{
printf("Error in Recv Data!Error Code:%d\n",WSAGetLastError());
closesocket(s);

return NULL;
}
sumlen=strlen(html);
printf(buffer_recv);
//ÖØзÖÅäÄÚ´æÔ­À´´óС¼Ólen³¤¶È
if((html=(char*)realloc((void*)html,sumlen+sizeof(char)*len))!=NULL)
{
memset(html+sumlen-1,0,len);//½«Ð·ֵ½ÄÚ´æ³õʼΪ0
strcat(html,buffer_recv);//½«ÊÕµ½ÐÅϢдÈëзֵ½ÄÚ´æ
}
memset(buffer_recv,0,1024);
}

closesocket(s);
closesocket(s);

return strlen(html)==0?NULL:html;
}
void PrintWeather(const Weather_Info* pwi)
{
system("cls");
printf("\n");
printf("\n");
printf("\n");
printf(" \t ÌìÆøÔ¤±¨\n");
printf(" \t=====================================\n");
printf(" \t³Ç ÊУº%s\n",pwi->city);
printf(" \t------------------------------------\n");
printf(" \tÌì Æø£º%s\n",pwi->weather);
printf(" \t------------------------------------\n");
printf(" \tΠ¶È£º%s\n",pwi->temp);
printf(" \t------------------------------------\n");
printf(" \t·ç Ïò£º%s\n",pwi->wind);
printf(" \t======================================\n");
}
int main(int argc,char**argv)
{
Weather_Info wi;
SearchInfo si;
memset(&wi,0,sizeof(Weather_Info));
strcpy(wi.city,"Ö£ÖÝ");
if(argc>=2)
strcpy(wi.city,argv[1]);
if(!initsocket())
{
printf("Socket Error~\n");
return 1;
}

memset(&si,0,sizeof(SearchInfo));
sprintf(si.host,URL,wi.city);
if(!initargs(si,wi.city))
{
printf("Connect Internet Error~\n");
return 1;
}
char *html=NULL;
if((html=GetFile(&si))==NULL)
{
printf("Get Information Error~!\n");
return 1;
}

if(!GetWeather(wi,html))
{
printf("Get Weather Info Error~\n");
return 1;
}
free(html);
PrintWeather(&wi);
system("pause");
getchar();
return 0;
}
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laobingyouzi 2008-10-15
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程序是没有问题的，程序直接拷出来的，我在别人电脑上运行过（有兴趣的朋友可以拷下来试下，自己再排下版，运行因该没问题的），但是在我自己电脑上是运行不了的，我但不跟踪发现“hostent *phst=gethostbyname(psi->host);//用DNS解析主机IP”运行到此处时，phst为NULL，也时就说DNS没解析除主机IP，后来我发现我电脑IP设置的地方没有设置DNS（我是用代理上网的），现在的问题怎么将这个问题解决，也就说怎么实现只要上网就可以获取的天气预报，我曾经下载过一个日历（有天气预报功能），在我电脑上运行后，该日历可以获取天气预报的。我要实现类似的功能。
aaajj 2008-10-11
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识之
mabo321 2008-10-11
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好贴，，

顶一个~~~~
baihacker 2008-10-11
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我有程序...MFC + boost的...
laobingyouzi 2008-10-11
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我后来又试了一下，程序在别的电脑是可以用的，但是我发现在我电脑用确用不了，跟踪程序，发现在域名解析的时候出了问题，我的网络设置没有设置DNS服务器。不知有什么方法可解决此问题，－－－只要能上网就可以获得天气预报？
malu_1982 2008-10-11
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天气预报
貌似应该用Observer模式。逻辑比较清晰，低耦合。
冰山之海 2008-10-11
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我改了一下，他解析天气有误
// Test1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <Winsock2.h>
#include <iostream.h>

#pragma comment(lib,"ws2_32.lib")

struct Weather_Info
{
char city[50];
char weather[50];
char temp[50];
char wind[50];
};
const char* URL="http://weather.tq121.com.cn/mapanel/index1.php?city=%s";
const char* weather_tag="class=\"weather\">";
const char* temp_tag="class=\"weatheren\">";
const char* wind_tag="class=\"big-cn\">";
bool GetWeather(Weather_Info&wi,char *html)
{
if(html==NULL)
return false;
char *temp=NULL;
if((temp=strstr(html,weather_tag))==NULL)
return false;

temp+=strlen(weather_tag);
memcpy(wi.weather,temp,strstr(temp,"<")-temp);

if((temp=strstr(html,temp_tag))==NULL)
return false;
temp+=strlen(temp_tag);
// memcpy(wi.temp,temp,strlen(temp)-strlen(strstr(temp," <")));
memcpy(wi.temp,temp,strstr(temp,"<")-temp);
if((temp=strstr(temp,wind_tag))==NULL)
return false;
temp+=strlen(wind_tag);
memcpy(wi.wind,temp,strstr(temp,"<")-temp);
//memcpy(wi.wind,temp,strlen(temp)-strlen(strstr(temp," <")));
return true;
}
bool initsocket()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return false;
}

if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
WSACleanup( );
return false;
}
return true;

}
struct SearchInfo
{
char host[256];
unsigned int port;
char filename[256];
char outfile[50];
};
void GetUrls(char *html);
bool initsocket();
bool initargs(SearchInfo &outinfo,int argc,char **args);
const char *HTTP_STR="http://";
const char* HTTP_REQUEST_HEADER=
"GET %s HTTP/1.1\r\nAccept:*/*\r\n\ Accept-Language:zh-cn\r\n\User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\n\Host:%s\r\n\r\n";

bool initargs(SearchInfo &outinfo,const char*city)
{
memset(&outinfo,0,sizeof(SearchInfo));

char *temp=new char[256];
memset(temp,0,256);
sprintf(temp,URL,city);
printf(temp);
temp=(strstr(temp,HTTP_STR)!=NULL)?temp+strlen(HTTP_STR):temp;
strcpy(outinfo.filename,strstr(temp,"/")!=NULL?strstr(temp,"/"):"/");
int length=strstr(temp,"/")==NULL?strlen(temp):(strlen(temp)-strlen(strstr(temp,"/")));

memcpy(outinfo.host,temp,length);
if((temp=strstr(outinfo.host,":"))!=NULL)
{
temp++;
outinfo.port=atoi(temp);
}
else
{
outinfo.port=80;
}
delete temp;
return true;

}

char* GetFile(const SearchInfo * psi)
{
if(psi==NULL)
{
return NULL;
}
unsigned long serverip=0;
if((serverip=inet_addr(psi->host))==INADDR_NONE)
{
hostent *phst=gethostbyname(psi->host);
if(phst==NULL)
return NULL;

if(phst->h_addr_list[0]!=0)
{
memcpy(&serverip,phst->h_addr_list[0],phst->h_length);

}

}
SOCKET s=socket(AF_INET,SOCK_STREAM,0);
if(s==INVALID_SOCKET)
{
printf("Create socket Error!Error Code:%d\n",WSAGetLastError());
return NULL;
}
SOCKADDR_IN server_addr;
server_addr.sin_addr.S_un.S_addr=serverip;
server_addr.sin_family=AF_INET;
server_addr.sin_port=htons(psi->port);
memset(server_addr.sin_zero,0,sizeof(server_addr.sin_zero));

if(SOCKET_ERROR==connect(s,(const sockaddr*)&server_addr,sizeof(SOCKADDR_IN)))
{
printf("Connect Server Error!Error Code:%d\n",WSAGetLastError());
closesocket(s);

return NULL;
}
char buffer_sendmsg[256]={0};
sprintf(buffer_sendmsg,HTTP_REQUEST_HEADER,psi->filename,psi->host);
// printf("\n请求格式:%s\n",buffer_sendmsg);
if(send(s,buffer_sendmsg,256,0)==SOCKET_ERROR)
{
printf("\n城市输入有误,任意键退出\n");
closesocket(s);
system("pause");
getchar();
return NULL;
}


int len=0;
char buffer_recv[1024]={0};

int sumlen=0;
char *html=(char*)malloc(sizeof(char)*1);

while((len=recv(s,buffer_recv,1024,0))!=0)
{
if(len==SOCKET_ERROR)
{
printf("网络无回复,任意键退出\n");
closesocket(s);
system("pause");
getchar();
return NULL;
}
sumlen=strlen(html);

// printf(buffer_recv);

if((html=(char*)realloc((void*)html,sumlen+sizeof(char)*len))!=NULL)
{
memset(html+sumlen-1,0,len);
strcat(html,buffer_recv);
}
memset(buffer_recv,0,1024);
}

closesocket(s);
closesocket(s);

return strlen(html)==0?NULL:html;
}
void PrintWeather(const Weather_Info* pwi)
{
//system("cls");
printf("\n");
printf("\n");
printf("\n");
printf(" \t 天气预报 \n");
printf(" \t=====================================\n");
printf(" \t城市 : %s\n",pwi->city);
printf(" \t------------------------------------\n");
printf(" \t天气情况: %s\n",pwi->weather);
printf(" \t------------------------------------\n");
printf(" \t气温 : %s\n",pwi->temp);
printf(" \t------------------------------------\n");
printf(" \t风力 : %s\n",pwi->wind);
printf(" \t======================================\n");
printf(" \t版权所有:一生有你 \n");
}
int main(int argc,char**argv)
{
Weather_Info wi;
SearchInfo si;
char szCity[20] = "";
memset(&wi,0,sizeof(Weather_Info));

cout<<"输入你要查询城市的名称:";
cin>>szCity;

strcpy(wi.city,szCity);
if(argc>=2)
strcpy(wi.city,argv[1]);
if(!initsocket())
{
printf("Socket Error1~\n");
return 1;
}

memset(&si,0,sizeof(SearchInfo));
sprintf(si.host,URL,wi.city);
if(!initargs(si,wi.city))
{
printf("Connect Internet Error2~\n");
return 1;
}
char *html=NULL;
if((html=GetFile(&si))==NULL)
{
printf("Get Information Error3~!\n");
return 1;
}

if(!GetWeather(wi,html))
{
printf("\n\n\t\t警告: 城市输入有误\n\n\n");
system("pause");
getchar();
return 1;
}
free(html);
PrintWeather(&wi);
printf("\n\n");
system("pause");
getchar();
return 0;
}

冰山之海 2008-10-11
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经典，这跟在网页上搜索是一个道理，如果你能写个解析HTML语言就更好了，就能把天气预报在dos下打印出来
frank_ll 2008-10-11
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mark
Smile_unix 2008-10-08
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^_^
qkhhxkj102 2008-10-07
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我的天呀
chlaws 2008-10-07
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#include <stdio.h> 

#include <stdlib.h> 

#include <string.h> 

#include <windows.h> 

#pragma comment(lib,"ws2_32.lib") 

struct Weather_Info 

{ 

	char city[50]; 

	char weather[50]; 

	char temp[50]; 

	char wind[50]; 

}; 

const char* URL="http://weather.tq121.com.cn/mapanel/index1.php?city=%s"; 

const char* weather_tag=" <td width=\"160\" align=\"center\" valign=\"top\" class=\"weather\">"; 

const char* temp_tag=" <td width=\"160\" align=\"center\" valign=\"top\" class=\"weatheren\">"; 

const char* wind_tag=" <td width=\"153\" valign=\"top\"> <span class=\"big-cn\">"; 

bool GetWeather(Weather_Info&wi,char *html) 

{ 

	if(html==NULL) 

		return false; 

	char *temp=NULL; 

	if((temp=strstr(html,weather_tag))==NULL) 

		return false; 

	

	temp+=strlen(weather_tag); 

	memcpy(wi.weather,temp,strlen(temp)-strlen(strstr(temp," <"))); 

	if((temp=strstr(html,temp_tag))==NULL) 

		return false; 

	temp+=strlen(temp_tag); 

	memcpy(wi.temp,temp,strlen(temp)-strlen(strstr(temp," <"))); 

	if((temp=strstr(html,wind_tag))==NULL) 

		return false; 

	temp+=strlen(wind_tag); 

	memcpy(wi.wind,temp,strlen(temp)-strlen(strstr(temp," <"))); 

	return true; 

} 

bool initsocket() 

{ 

	WORD wVersionRequested; 

	WSADATA wsaData; 

	int err; 

	wVersionRequested = MAKEWORD( 2, 2 ); 

	err = WSAStartup( wVersionRequested, &wsaData ); 

	if ( err != 0 ) { 

		return false; 

	} 

	

	if ( LOBYTE( wsaData.wVersion ) != 2 || 

        HIBYTE( wsaData.wVersion ) != 2 ) { 

		WSACleanup( ); 

		return false; 

	} 

	return true; 

	

} 

struct SearchInfo//???÷?á11ì??¨ò? 

{ 

	char host[256];//?÷?ú?? 

	unsigned int port;//???úo? 

	char filename[256];//òa???t?? 

	char outfile[50];//±￡′????t?? 

}; 

void GetUrls(char *html);//?a??html′ú???Dμ?URL 

bool initsocket();//3?ê??ˉì×?ó×? 

bool initargs(SearchInfo &outinfo,int argc,char **args);//?a??ê?è??üá?DD2?êy 

const char *HTTP_STR="http://"; 

const char* HTTP_REQUEST_HEADER=/*HTTP???óí·*//*这串常量字符串不能多行,只能放一行*/ 

"GET %s HTTP/1.1\r\nAccept:*/*\r\n\ Accept-Language:zh-cn\r\n\User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\n\Host:%s\r\n\r\n"; 



bool initargs(SearchInfo &outinfo,const char*city) 

{ 

	memset(&outinfo,0,sizeof(SearchInfo));//3?ê??ˉ 

	

	char *temp=new char[256]; 

	memset(temp,0,256); 

	sprintf(temp,URL,city); 

	printf(temp); 

    temp=(strstr(temp,HTTP_STR)!=NULL)?temp+strlen(HTTP_STR):temp;//è￥μ??°??μ?http￡o\\ 

	//  printf("Url:%s\n",temp); 

	strcpy(outinfo.filename,strstr(temp,"/")!=NULL?strstr(temp,"/"):"/");//·???3?òa???????t?? 

    int length=strstr(temp,"/")==NULL?strlen(temp):(strlen(temp)-strlen(strstr(temp,"/"))); 

	//·???3??÷?ú??μ?3¤?èwww.zzti.edu.cn/index.html-/index.html 

    memcpy(outinfo.host,temp,length);//?a??3??÷?ú?? 

	if((temp=strstr(outinfo.host,":"))!=NULL)//?a?????ú 

	{ 

		temp++; 

		outinfo.port=atoi(temp); 

	} 

	else//è?1???óDê?è?ê1ó???è?80 

	{ 

		outinfo.port=80; 

	} 

	delete temp; 

	return true; 

	

} 



char* GetFile(const SearchInfo * psi) 

{ 

	if(psi==NULL) 

	{ 

		return NULL; 

	} 

	unsigned long serverip=0;//·t???÷IP 

	if((serverip=inet_addr(psi->host))==INADDR_NONE)//è?1??÷?ú??2?ê?IP 

	{ 

		hostent *phst=gethostbyname(psi->host);//ó?DNS?a???÷?úIP 

		if(phst==NULL)//è?1??a??꧰ü·μ??false 

			return NULL; 

		//IN_ADDR in; 

		if(phst->h_addr_list[0]!=0)//?a??3é1|ê1ó??÷?úμúò???IP 

		{ 

			memcpy(&serverip,phst->h_addr_list[0],phst->h_length); 

			// in.S_un.S_addr=serverip; 

		} 

		// printf("IP:%s",inet_ntoa(in)); 

	} 

	SOCKET s=socket(AF_INET,SOCK_STREAM,0);//′′?¨socket￡¨TCPá??ó￡? 

	if(s==INVALID_SOCKET)//′′?¨ê§°ü 

	{ 

		printf("Create socket Error!Error Code:%d\n",WSAGetLastError()); 

		return NULL; 

	} 

	SOCKADDR_IN server_addr;//·t???÷address 

	server_addr.sin_addr.S_un.S_addr=serverip; 

	server_addr.sin_family=AF_INET; 

	server_addr.sin_port=htons(psi->port); 

	memset(server_addr.sin_zero,0,sizeof(server_addr.sin_zero)); 

    printf("Begin Connect Server :%s On:%d\n",inet_ntoa(server_addr.sin_addr),psi->port); 

	//?aê?á??ó·t???÷·￠3????ó 

    if(SOCKET_ERROR==connect(s,(const sockaddr*)&server_addr,sizeof(SOCKADDR_IN))) 

	{ 

		printf("Connect Server Error!Error Code:%d\n",WSAGetLastError()); 

        closesocket(s); 

		//è?1?á??ó꧰ü 

		return NULL; 

	} 

    printf("Connect Server OK!\n"); 

	char buffer_sendmsg[256]={0}; 

	sprintf(buffer_sendmsg,HTTP_REQUEST_HEADER,psi->filename,psi->host);//11?ìHTTP???ó 

	//printf(buffer_sendmsg); 

	if(send(s,buffer_sendmsg,256,0)==SOCKET_ERROR)//?ò·t???÷·￠?í???ó 

	{ 

		printf("Send Request To Server Error!Error Code:%d\n",WSAGetLastError()); 

		closesocket(s); 

		//·￠?í꧰ü 

		return NULL; 

	} 

    //′ò?a???t?aê?±￡′?html′ú?? 

	

	int len=0; 

	char buffer_recv[1024]={0};//?óê?htmlμ?buffer 

    

    int sumlen=0;//htmlμ?3¤?è 

	char *html=(char*)malloc(sizeof(char)*1);//×üμ?html×?·?′? 

	

	while((len=recv(s,buffer_recv,1024,0))!=0) 

	{ 

		if(len==SOCKET_ERROR) 

		{ 

			printf("Error in Recv Data!Error Code:%d\n",WSAGetLastError()); 

			closesocket(s); 

			

			return NULL; 

		} 

		sumlen=strlen(html); 

		printf(buffer_recv); 

		//??D?·????ú′??-à′′óD??ólen3¤?è 

		if((html=(char*)realloc((void*)html,sumlen+sizeof(char)*len))!=NULL) 

		{ 

			memset(html+sumlen-1,0,len);//??D?·?μ??ú′?3?ê??a0 

			strcat(html,buffer_recv);//??ê?μ?D??￠D′è?D?·?μ??ú′? 

		} 

		memset(buffer_recv,0,1024); 

	} 

	

	closesocket(s); 

    closesocket(s); 

	

    return strlen(html)==0?NULL:html; 

} 

void PrintWeather(const Weather_Info* pwi) 

{ 

	system("cls"); 

	printf("\n"); 

	printf("\n"); 

	printf("\n"); 

	printf("          \t    ìì???¤±¨\n"); 

	printf(" \t=====================================\n"); 

	printf("  \t3? êD￡o%s\n",pwi->city); 

	printf("  \t------------------------------------\n"); 

	printf("  \tìì ??￡o%s\n",pwi->weather); 

	printf("  \t------------------------------------\n"); 

	printf("  \t?? ?è￡o%s\n",pwi->temp); 

	printf("  \t------------------------------------\n"); 

	printf("  \t·? ?ò￡o%s\n",pwi->wind); 

	printf(" \t======================================\n"); 

} 

int main(int argc,char**argv) 

{ 

	Weather_Info wi; 

	SearchInfo si; 

	memset(&wi,0,sizeof(Weather_Info)); 

	strcpy(wi.city,"?￡?Y"); 

	if(argc>=2) 

		strcpy(wi.city,argv[1]); 

	if(!initsocket()) 

	{ 

		printf("Socket Error~\n"); 

		return 1; 

	} 

	

	memset(&si,0,sizeof(SearchInfo)); 

	sprintf(si.host,URL,wi.city); 

	if(!initargs(si,wi.city)) 

	{ 

		printf("Connect Internet Error~\n"); 

		return 1; 

	} 

	char *html=NULL; 

	if((html=GetFile(&si))==NULL) 

	{ 

		printf("Get Information Error~!\n"); 

		return 1; 

	} 

	

	if(!GetWeather(wi,html)) 

	{ 

		printf("Get Weather Info Error~\n"); 

		return 1; 

	} 

	free(html); 

	PrintWeather(&wi); 

	system("pause"); 

	getchar(); 

	return 0; 

}
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