WSAAsyncSelect 问题 已经accept的帖子，send失败?

C/C++ code

SOCKET sock; //全局sockaddr_in sockaddr_info;……void OnSocket(WPARAM wParam, LPARAM lParam){    DWORD err ;    int ret;    char str[] = "WSAAsyncSelect";    int len = sizeof(sockaddr);    switch(WSAGETSELECTEVENT(lParam))    {    case FD_ACCEPT:        ret = accept(sock,reinterpret_cast<sockaddr *>(&sockaddr_info),&len);        if(ret == SOCKET_ERROR)        {            err = WSAGetLastError();        }        break;    case FD_WRITE:        ret  = send(sock,str,strlen(str),0);        if(ret == SOCKET_ERROR)        {            err = WSAGetLastError();        }        break;    }}LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){    ……    case WM_SOCKET:        OnSocket(wParam,lParam);        break;    case WM_PAINT:        ……

设了n个断点，结果是：accept返回正常值，send返回-1.用WSAGetLastError看了下，错误号10057，查了一下，是WSAENOTCONN Socket is not connected.

怎么回这样呢？sock是全局的呀

[解决办法]
send的时候，不能用sock，你得用accept的返回值，也就是你上面的那个ret来进行send使用