error LNK2001: unresolved external symbol

--------------------Configuration:   csgptest   -   Win32   Debug--------------------  
  Linking...  
  CSGPAPI.lib(csgpapi.obj)   :   error   LNK2001:   unresolved   external   symbol   _htons@4  
  CSGPAPI.lib(csgpapi_internal.obj)   :   error   LNK2001:   unresolved   external   symbol   _htons@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _htons@4  
  CSGPAPI.lib(csgpapi_internal.obj)   :   error   LNK2001:   unresolved   external   symbol   _ntohs@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _ntohs@4  
  CSGPAPI.lib(ls_link.obj)   :   error   LNK2001:   unresolved   external   symbol   _ntohs@4  
  CSGPAPI.lib(csgpapi_internal.obj)   :   error   LNK2001:   unresolved   external   symbol   _htonl@4  
  CSGPAPI.lib(csgpapi_internal.obj)   :   error   LNK2001:   unresolved   external   symbol   _ntohl@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _select@20  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _WSAStartup@8  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _WSACleanup@0  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _gethostbyname@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _inet_addr@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _getservbyname@8  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _listen@8  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _bind@12  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _setsockopt@20  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _socket@12  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _getprotobyname@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _closesocket@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _connect@12  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _inet_ntoa@4  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _accept@12  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _send@16  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _recv@16  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _gethostname@8  
  CSGPAPI.lib(ls_socks.obj)   :   error   LNK2001:   unresolved   external   symbol   _getpeername@12  
  Debug/csgptest.exe   :   fatal   error   LNK1120:   23   unresolved   externals  
  执行   link.exe   时出错.  

看错误是lib没有链接，在代码中添上这句试试：  
  #pragma   comment(lib,   "Ws2_32.lib")