| 宏名 | 值 | winsock2 | linux ||—————–+————+————————+—————————|| AF_INET | 2 | winsock2.h => ws2def.h | socket.h => bits/socket.h || INADDR_LOOPBACK | 0x7f000001 | winsock2.h => ws2def.h | netinet/in.h || SOCKET_ERROR | -1 | winsock2.h | 无 |