code: function ECKeySign(hashBytes, priKeyBytes) {
    let ec = new EC('secp256k1');
    let key = ec.keyFromPrivate(priKeyBytes, 'bytes');
    let signature = key.sign(hashBytes);
    let r = signature.r;
    let s = signature.s;
    let id = signature.recoveryParam;
    let rHex = r.toString('hex');
    while (rHex.length < 64) {
      rHex = "0" + rHex;
    }
    let sHex = s.toString('hex');
    while (sHex.length < 64) {
      sHex = "0" + sHex;
    }
    let idHex = byte2hexStr(id);
    let signHex = rHex + sHex + idHex;
    return hexStr2byteArray(signHex);
  }
docs: return sign by 65 bytes r s id. id < 27