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[DllImport("JFNetLib.dll", EntryPoint = "SetRemoteServerAddr")]
public static extern void SetRemoteServerAddr(Int64 nSvrPort, string szSvrAddr);
[DllImport("JFNetLib.dll", EntryPoint = "SendRequestPack")]
public static extern Int64 SendRequestPack(string sendbuf, Int64 sendlen, StringBuilder recvbuf, out Int64 recvlen, Int64 waitsecs);
Int64 dk = 8800;
string sbIP = "192.168.0.80";
string sbCS = "EXCHCODE=GY01&HOSCODE=0C01";
StringBuilder sbJG = new StringBuilder(65535);
long length;
SetRemoteServerAddr(dk, sbIP);
int cnt = (int)SendRequestPack(sbCS, sbCS.Length, sbJG, out length, 200);
MessageBox.Show(cnt.ToString());
MessageBox.Show(sbJG.ToString());