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socketÏà¹Ø³ÌÐò´ÓwindowsÒÆÖ²µ½linuxÏÂÐèҪעÒâµÄ 
1)Í·Îļþ 
windowsÏÂwinsock.h/winsock2.h 
linuxÏÂsys/socket.h 
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2)³õʼ»¯ 
windowsÏÂÐèÒªÓÃWSAStartup 
linuxϲ»ÐèÒª 
3)¹Ø±Õsocket 
windowsÏÂclosesocket(...) 
linuxÏÂclose(...) 
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windowsÏÂSOCKET 
linuxÏÂint 
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#ifdef WIN32 
typedef int socklen_t; 
typedef int ssize_t; 
#endif 
#ifdef __LINUX__ 
typedef int SOCKET; 
typedef unsigned char BYTE; 
typedef unsigned long DWORD; 
#define FALSE 0 
#define SOCKET_ERROR (-1) 
#endif 
5)»ñÈ¡´íÎóÂë 
windowsÏÂgetlasterror()/WSAGetLastError() 
linuxÏÂerrno±äÁ¿ 
6)ÉèÖ÷Ç×èÈû 
windowsÏÂioctlsocket() 
linuxÏÂfcntl() <fcntl.h> 
7)sendº¯Êý×îºóÒ»¸ö²ÎÊý 
windowsÏÂÒ»°ãÉèÖÃΪ0 
linuxÏÂ×îºÃÉèÖÃΪMSG_NOSIGNAL£¬Èç¹û²»ÉèÖã¬ÔÚ·¢Ëͳö´íºóÓпɠÄܻᵼÖ³ÌÐòÍ˳ö¡£ 
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windowsÏÂGetTickCount() 
linuxÏÂgettimeofday() 
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