原文地址：http://blog.sina.com.cn/s/blog_4880c4bb0100b6a5.html

WSAGetLastError()函数返回结果与对照表：

Windows Sockets code   Error   Description
   ------------------------------------------------------------------------

WSAEINTR               10004   Interrupted system call.系统调用已中断
   WSAEBADF               10009   Bad file number.不良档案
   WSEACCES               10013   Permission denied.许可被拒绝
   WSAEFAULT              10014   Bad address.错误处理
   WSAEINVAL              10022   Invalid argument.无效的论点
   WSAEMFILE              10024   Too many open files.文件打开太多
   WSAEWOULDBLOCK         10035   Operation would block.操作阻塞
   WSAEINPROGRESS         10036   Operation now in progress. This error is
                                  returned if any Windows Sockets API
                                  function is called while a blocking
                                  function is in progress.
   WSAEALREADY            10037   Operation already in progress.行动已经取得进展
   WSAENOTSOCK            10038   Socket operation on nonsocket.套接字操作没有接口
   WSAEDESTADDRREQ        10039   Destination address required.需要目标地址
   WSAEMSGSIZE            10040   Message too long.
   WSAEPROTOTYPE          10041   Protocol wrong type for socket.协议类型错误的接口
   WSAENOPROTOOPT         10042   Protocol not available.协议书不存在
   WSAEPROTONOSUPPORT     10043   Protocol not supported.不支持的协议
   WSAESOCKTNOSUPPORT     10044   Socket type not supported.不支持的接口类型
   WSAEOPNOTSUPP          10045   Operation not supported on socket.接口不支持的动作
   WSAEPFNOSUPPORT        10046   Protocol family not supported.不支持的协议簇
   WSAEAFNOSUPPORT        10047   Address family not supported by protocol
                                  family.
   WSAEADDRINUSE          10048   Address already in use.地址已在使用中
   WSAEADDRNOTAVAIL       10049   Cannot assign requested address.
   WSAENETDOWN            10050   Network is down. This error may be
                                  reported at any time if the Windows
                                  Sockets implementation detects an
                                  underlying failure.
   WSAENETUNREACH         10051   Network is unreachable.
   WSAENETRESET           10052   Network dropped connection on reset.
   WSAECONNABORTED        10053   Software caused connection abort.
   WSAECONNRESET          10054   Connection reset by peer.
   WSAENOBUFS             10055   No buffer space available.
   WSAEISCONN             10056   Socket is already connected.
   WSAENOTCONN            10057   Socket is not connected.接口没有连接成功
   WSAESHUTDOWN           10058   Cannot send after socket shutdown.接口断开，不能发送
   WSAETOOMANYREFS        10059   Too many references: cannot splice.
   WSAETIMEDOUT           10060   Connection timed out.
   WSAECONNREFUSED        10061   Connection refused.
   WSAELOOP               10062   Too many levels of symbolic links.
   WSAENAMETOOLONG        10063   File name too long.
   WSAEHOSTDOWN           10064   Host is down.
   WSAEHOSTUNREACH        10065   No route to host.
   WSASYSNOTREADY         10091   Returned by WSAStartup(), indicating that
                                  the network subsystem is unusable.
   WSAVERNOTSUPPORTED     10092   Returned by WSAStartup(), indicating that
                                  the Windows Sockets DLL cannot support
                                  this application.
   WSANOTINITIALISED      10093   Winsock not initialized. This message is
                                  returned by any function except
                                  WSAStartup(), indicating that a
                                  successful WSAStartup() has not yet been
                                  performed.
   WSAEDISCON             10101   Disconnect.
   WSAHOST_NOT_FOUND      11001   Host not found. This message indicates
                                  that the key (name, address, and so on)
                                  was not found.——找不到主机。关键（姓名，地址，等等）没有找到。
   WSATRY_AGAIN           11002   Nonauthoritative host not found. This
                                  error may suggest that the name service
                                  itself is not functioning.
   WSANO_RECOVERY         11003   Nonrecoverable error. This error may
                                  suggest that the name service itself is
                                  not functioning.
   WSANO_DATA             11004   Valid name, no data record of requested
                                  type. This error indicates that the key
                                  (name, address, and so on) was not found.

个人总结：

windows下socket编程，socket创建前需要设置WSAStartup()；close后，需要WSACleanup（），但是linux下不需要。windows下会报出10093 GetLastError（）的错误。

windows下socket编程，

struct sockaddr_in localsin;
memset(&localsin, 0, sizeof(localsin));
localsin.sin_family = AF_INET;
//localsin.sin_addr.s_addr = htonl(localipaddr);//windows下不能设置本地ip，只需要写为0就可以了。但是linux下需要的。

//若设置了本地ip，windows下会报出10049的GetLastError（）的错误。
localsin.sin_addr.S_un.S_addr = htonl(0);