| 12345678910111213141516171819202122232425262728293031323334353637383940 | package networkimport (	"log"	"net"	"testing")func TestListenTCP(t *testing.T) {	listener, err := ListenTCP(NetTCP, "0.0.0.0:8899")	if err != nil {		t.Error(err)		return	}	defer func() {		_ = listener.Close()	}()	for {		conn, err := listener.Accept()		if err != nil {			t.Error(err)			return		}		go func(conn net.Conn) {			defer func() {				_ = conn.Close()			}()			for {				b := make([]byte, 512)				n, err := conn.Read(b)				if err != nil {					log.Println(err)					return				}				log.Println("Hex:", Bytes(b[:n]).HexTo())				log.Println(string(b[:n]))			}		}(conn)	}}
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