我想用WriteFile傳送UDP網路封包 以下為我的code 但是怎麼傳都失敗 GetLastError()為59:突如其來網路錯誤 請問如何寫才可運作...謝謝 SOCKET sck; WSADATA wsd; SOCKADDR_IN Addr; DWORD successedByte; WSAStartup(MAKEWORD(2,2), &wsd); sck = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); Addr.sin_family = AF_INET; Addr.sin_port = htons(6000); Addr.sin_addr.s_addr = inet_addr("192.168.1.17"); bind(sck, (SOCKADDR *)&Addr, sizeof(Addr)); BYTE writeMessage[20]; writeMessage[0]=0xAA; writeMessage[1]=0xBB; writeMessage[2]=0; writeMessage[3]=0xAA; writeMessage[4]=0x60; writeMessage[5]=0xAA; writeMessage[6]=0xCC; writeMessage[7]=0; DWORD length=8; int success=WriteFile((HANDLE)sck,(LPVOID)(&writeMessage),length,&successedByte,NULL) ;