hex.EncodeToString(pubkey)3056301006072a8648ce3d020106052b8104000a034200049bb8e80670371f45508b5f8f59946a7c4dea4b3a23a036cf24c1f40993f4a1daad1716de8bd664ecb4596648d722a4685293de208c1d2da9361b9cba74c3d1ec
0x049bb8e80670371f45508b5f8f59946a7c4dea4b3a23a036cf24c1f40993f4a1daad1716de8bd664ecb4596648d722a4685293de208c1d2da9361b9cba74c3d1ec
hex.DecodeString(str)addrPubKey, err := btcutil.NewAddressPubKey(bs, &chaincfg.TestNet3Params)

如何在golang中解码以获得0x049...输出？

谢谢