函数WSARecvFrom的原型( http://msdn.microsoft.com/en-us/library/ms741686%28VS.85%29.aspx):int WSARecvFrom( __in SOCKET s, __inout LPWSABUF lpBuffers, __in DWORD dwBufferCount, __out LPDWORD lpNumberOfBytesRecvd, __inout LPDWORD lpFlags, __out struct sockaddr *lpFrom, __inout LPINT lpFromlen, __in LPWSAOVERLAPPED lpOverlapped, __in LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine);----------------------------------------------------------- 谢谢!