通信测试_,IcmpCreateFile,IcmpCloseHandle,IcmpSendEcho,WSAGetLastError,WSAStartup,WSACleanup,gethostname,gethostbyname,GetHost,GetVaradd,GetAddr,inet_addr,GetTypeSize,inet_ntoa,GetTickCount,QueryPerformanceFrequency,QueryPerformanceCounter,P
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