winsock bind 错误代号10049
//服务器进程

#include <stdlib.h>
#include <stdio.h>
#include <WinSock2.h>

#pragma comment(lib,"Ws2_32")

#define PORT 7000

int main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;

wVersionRequested = MAKEWORD( 2, 2 );

err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return 1;
}

/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */

if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return 1;
}

/* The WinSock DLL is acceptable. Proceed. */

SOCKET sock_listen = socket(AF_INET,SOCK_STREAM,0);

SOCKADDR_IN addr_server;
addr_server.sin_addr.S_un.S_addr = inet_addr(INADDR_ANY);
addr_server.sin_family = AF_INET;
addr_server.sin_port = htons(PORT);

int ret = 0;
int error = 0;

ret = bind(sock_listen,(LPSOCKADDR)&addr_server,sizeof(addr_server));
if (ret==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Bind error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

ret = listen(sock_listen,5);
if (ret==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Listen error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

int sock_len = sizeof(SOCKADDR);
SOCKET sock_client = accept(sock_listen,(LPSOCKADDR)&addr_server,&sock_len);
if (sock_client==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Accept error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

char recvBuf[100]={""};
char tempBuf[200]={""};


ret = recv(sock_client,recvBuf,strlen(recvBuf)+1,0);
if (ret==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Recv error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

sprintf_s(tempBuf,strlen(tempBuf)+1,"%s",recvBuf);

printf("%s\n",recvBuf);

shutdown(sock_listen,0);

closesocket(sock_listen);
closesocket(sock_client);

WSACleanup();

return 0;

}

//客户进程
#include <stdlib.h>
#include <stdio.h>
#include <WinSock2.h>

#pragma comment(lib,"Ws2_32")

#define PORT 7000

int main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;

wVersionRequested = MAKEWORD( 2, 2 );

err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */

return 1;
}

/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */

if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return 1;
}

/* The WinSock DLL is acceptable. Proceed. */

SOCKET sock_client = socket(AF_INET,SOCK_STREAM,0);

SOCKADDR_IN addr_client;
addr_client.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
addr_client.sin_family = AF_INET;
addr_client.sin_port = htons(PORT);

int ret = 0;
int error = 0;
ret = connect(sock_client,(LPSOCKADDR)&addr_client,sizeof(addr_client));
if (ret==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Connect error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

char sendBuf[100]={"my name is xxxxx"};

ret = send(sock_client,sendBuf,strlen(sendBuf),0);
if (ret==SOCKET_ERROR)
{
#ifdef _DEBUG
printf("Send error:%d\n",(error=WSAGetLastError()));
#endif
return 0;
}

shutdown(sock_client,0);

closesocket(sock_client);

WSACleanup();


return 0;
}

服务器进程启动时，返回错误时10049，我刚开始学网络编程，网上找了很久，问题还是没解决，望知道得人看看，解答疑惑，感谢

[解决办法]
addr_server.sin_addr.S_un.S_addr = htonl(INADDR_ANY); //可以不要htonl
----------
分析inet_addr(INADDR_ANY)
因为INADDR_ANY恰好等于0x00000000，相当于NULL，不然可能会报内存不能read之类的
而inet_addr(NULL)将返回0xFFFFFFFF（255.255.255.255）

之前见到过这种写法，
不知LZ是哪抄的代码？
[解决办法]
Cannot assign requested address.
就是地址不正确
1楼的解法正确
[解决办法]
有错误码就行了，网上查下错误码的意思。